Ignition Wiring Question
#1
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Location: Atlanta, GA
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Push button start and moved power outlet (UPDATE PICS: 56K NO)
Ok so I am putting in a push button start on my SS/SC. (Save the flaming I don't care what anyone thinks, I had it on my Mustang and loved it)
Anyway, I have everything mounted and ready to go, have power and ground to my button but I don't know which wire I need to cut to wire for the ignition. I have the directwire wiring list, which is wrong from what I can tell. I have no C4 connector. The only light grey connector I have is on the back of the BCM and has only 1 yellow wire in it. This wire has a 12v signal with the ignition in the on position and does not change when you turn the key to the start position.
I read somewhere that our PCM turns the starter when the ignition wire has 12v and the accessory wire has 0. Does that mean our ignition wire is always 12v when the car is in the on position and turning the key to the start position only removes power from the accessory wire? or am I missing a wire that gets a 12v signal only when the switch is in the start position?
Any help would be great.
Oh and I have taken pics of everything so far and will post them when I am done.
Anyway, I have everything mounted and ready to go, have power and ground to my button but I don't know which wire I need to cut to wire for the ignition. I have the directwire wiring list, which is wrong from what I can tell. I have no C4 connector. The only light grey connector I have is on the back of the BCM and has only 1 yellow wire in it. This wire has a 12v signal with the ignition in the on position and does not change when you turn the key to the start position.
I read somewhere that our PCM turns the starter when the ignition wire has 12v and the accessory wire has 0. Does that mean our ignition wire is always 12v when the car is in the on position and turning the key to the start position only removes power from the accessory wire? or am I missing a wire that gets a 12v signal only when the switch is in the start position?
Any help would be great.
Oh and I have taken pics of everything so far and will post them when I am done.
Last edited by Ryuu600; 04-07-2007 at 01:43 PM.
#2
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well although noone seems to be able to help me with the wiring of the ignition I have everything mounted and thought I'd post some pics.
This is the button I'm using:
It fits a "standard" cigarette lighter opening but unfortunately ours is much larger so I had to make a mounting plate to go behind the console:
I moved the power outlet down to the end of the shifter console opposite the existing one which required a new hole and some modification to the plastic underneath:
This is the finished look:
Now if I can just figure out the wiring...
This is the button I'm using:
It fits a "standard" cigarette lighter opening but unfortunately ours is much larger so I had to make a mounting plate to go behind the console:
I moved the power outlet down to the end of the shifter console opposite the existing one which required a new hole and some modification to the plastic underneath:
This is the finished look:
Now if I can just figure out the wiring...
#3
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i can E-Mail you PCM and Ignition switch connector pinouts if they would help. How is this going to work? It seems you will still need the key in the run position for the car to run. Why not just turn the key? Do you have a kit that eliminates the ignition switch?
Dennis
Dennis
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No I don't have anything that eliminates the ignition switch. I want the car to stay "secure" in that it needs the key. Yes I will still have to turn the key to the run position but I am trying to find a way to disable the ignition switch's ability to start the car and require the push button to do it.
I had this same setup on my Mustang and loved it. I think I might have it figured out. The white wire in the ignition harness is for the ION style passkey. It flows 4.41v when the key is in the run position and drops to 3.63v when the key is turned to the start position. This is what the system sees as a resistance code(R-Code). If I cut that wire and find out the amperage flowing through it then I can determine the size resistor I will need in order to drop the correct amount of voltage... Ohms law R=E/I. With that I should be able to wire a relay or two so that I can cut that wire, have it connected through a relay when the accessory power is on and then have that relay disengage and connect a second output when the push button is switched. Therefore having 4.41 volts flowing in the run position but when I push the button drop it to 3.63v and trigger the starter.
I haven't tested all this yet as I am still working out the wiring but I am working on it.
If I could find out where the white wire from the ignition harness, pin 5 I think runs into the BCM that would be great. That seems to be the one piece of information I am missing. I can cut the wire in the column but it would be easier, and cleaner, to do it all behind the center console, at the BCM.
I had this same setup on my Mustang and loved it. I think I might have it figured out. The white wire in the ignition harness is for the ION style passkey. It flows 4.41v when the key is in the run position and drops to 3.63v when the key is turned to the start position. This is what the system sees as a resistance code(R-Code). If I cut that wire and find out the amperage flowing through it then I can determine the size resistor I will need in order to drop the correct amount of voltage... Ohms law R=E/I. With that I should be able to wire a relay or two so that I can cut that wire, have it connected through a relay when the accessory power is on and then have that relay disengage and connect a second output when the push button is switched. Therefore having 4.41 volts flowing in the run position but when I push the button drop it to 3.63v and trigger the starter.
I haven't tested all this yet as I am still working out the wiring but I am working on it.
If I could find out where the white wire from the ignition harness, pin 5 I think runs into the BCM that would be great. That seems to be the one piece of information I am missing. I can cut the wire in the column but it would be easier, and cleaner, to do it all behind the center console, at the BCM.
#5
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Here are the BCM connector pinouts. Sorry it's a little hard to read, when I copy info out of Service Information it isn't formated properly. hope this helps you.
Dennis
Document ID# 1597745
2006 Chevrolet Cobalt
--------------------------------------------------------------------------------
Computer/Integrating Systems Connector End Views
Connector 1: Body Control Module (BCM) C1
Connector 2: Body Control Module (BCM) C2
Connector 3: Body Control Module (BCM) C3
Connector 4: Body Control Module (BCM) C4
Connector 5: Data Link Connector (DLC)
Body Control Module (BCM) C1
Connector Part Information
OEM: 15393122
Service: 88987847
Description: 72-Way F Micro 64 (GY)
Terminal Part Information
Pins: 1, 6 -- 8, 13 -- 20, 22, 26, 33, 35, 36, 44, 47, 51, 54, 55, 57, 60 -- 68, 70
Terminal/Tray: 15359541/4
Core/Insulation Crimp: M/M
Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)
Pins: 31
Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit
Body Control Module (BCM) C1 Pin
Wire Color
Circuit No.
Function
1
L-BU/BK
747
Left Rear Door Ajar Switch Signal (Sedan)
2-5
--
--
Not Used
6
WH
682
Door Lock Lock/Unlock Signal
7
WH
682
Door Lock Lock/Unlock Signal
8
WH
1080
Park Lamp Relay Control
9-12
--
--
Not Used
13
PK
849
Brake Fluid Level Sensor Signal
14
L-BU
1134
Park Brake Switch Signal
15
YE
5199
Run/Crank Relay Coil Control
16
WH
193
Rear Defog Relay Control
17
D-BU
15
Right Front Turn Signal Lamp Supply Voltage
18
D-GN
5060
Low Speed GMLAN Serial Data
19
TN/WH
746
Right Front Door Ajar Switch Signal
20
L-GN/BK
748
Right Rear Door Ajar Switch Signal (Sedan)
21
--
--
Not Used
22
GY/BK
745
Left Front Door Ajar Switch Signal
23-25
--
--
Not Used
26
L-GN
1478
Coolant Level Switch Signal (LSJ)
27-32
--
--
Not Used
33
D-GN/WH
1135
A/T Shift Lock Control Solenoid Supply Voltage
34
--
--
Not Used
35
L-BU
14
Left Front Turn Signal Lamp Supply Voltage
36
D-GN
5060
Low Speed GMLAN Serial Data
37-43
--
--
Not Used
44
TN/WH
1969
Headlamp High Beam Relay Control
45-46
--
--
Not Used
47
YE
196
Windshield Wiper Motor Park Switch Signal
48-50
--
--
Not Used
51
D-GN
113
Windshield Wiper Switch Signal
52-53
--
--
Not Used
54
YE
317
Fog Lamp Relay Control (T37)
55
OG/BK
744
Rear Compartment Lid Ajar Switch Signal
56
OG/B
737
Rear Compartment Lamp Control
57
BN
253
Rear Compartment Release Relay Control
58-59
--
--
Not Used
60
TN
28
Horn Relay Control
61
BK/WH
1251
Ground
62
RD/WH
1240
Battery Positive Voltage
63
GY
596
5-Volt Reference-1
64
BK/WH
751
Ground
65
TN/WH
1704
Low Reference
66
GY/BK
1798
Low Reference (Sedan)
67
YE/BK
61
Low Reference
68
WH
5075
Current Sensor Signal
69
--
--
Not Used
70
D-GN/WH
636
Ambient Air Temperature Sensor Signal
71-72
--
--
Not Used
Body Control Module (BCM) C2
Connector Part Information
OEM: 15393121
Service: 88987848
Description: 72-Way F Micro 64 (GY)
Terminal Part Information
Pins: 1 -- 5, 9, 10 -- 12, 14 -- 17, 19, 20, 26, 38, 44, 47, 51, 54 -- 58, 61, 62, 66 -- 69, 72
Terminal/Tray: 15359541/4
Core/Insulation Crimp: M/M
Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)
Pins: 70
Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit
Body Control Module (BCM) C2 Pin
Wire Color
Circuit No.
Function
1
BN/WH
2500
High Speed GMLAN Serial Data (+)
2
TN/BK
2500
High Speed GMLAN Serial Data (+)
3
YE
10
Headlamp Switch Signal
4
PU
524
Headlamp Dimmer Switch High Beam Signal
5
BN/WH
301
Park Lamp Switch On Signal
6-8
--
--
Not Used
9
WH
111
Hazard Switch Signal
10
TN
1576
Rear Compartment Lid Release Switch
11
D-GN
264
Security Indicator Supply Voltage
12
TN/WH
1455
Keyless Entry Program Enable Signal
13
--
--
Not Used
14
TN
28
Horn Relay Control
15
WH
103
Headlamp Switch Headlamps On Signal
16
OG
192
Front Fog Lamp Switch Signal (T37)
17
PU/WH
549
Headlamp Switch Headlamps Off Signal
18
--
--
Not Used
19
BN
2501
High Speed GMLAN Serial Data (-)
20
TN
2501
High Speed GMLAN Serial Data (-)
21-25
--
--
Not Used
26
D-GN
44
Instrument Panel Lamp Dimmer Switch Signal
27-37
--
--
Not Used
38
D-GN
5060
Low Speed GMLAN Serial Data
39-43
--
--
Not Used
44
L-GN/BK
1137
DRL Ambient Light Sensor Signal
45-46
--
--
Not Used
47
YE/BK
1138
DRL Ambient Light Sensor Low Reference
48-50
--
--
Not Used
51
BN
1356
Flash To Pass Switch Signal
52-53
--
--
Not Used
54
L-BU
20
Stop Lamp Supply Voltage
55
--
--
Not Used
56
WH
1390
Off/Run/Crank Voltage
57
GY
112
Windshield Wiper Switch Signal 1
58
PU
719
Low Reference
59-60
--
--
Not Used
61
GY
1884
Cruise Control Switch Signal (K34)
62
WH/BK
1073
Ignition Key Resistor Signal
63-65
--
--
Not Used
66
YE/BK
1418
Left Rear Turn Signal Switch Signal
67
D-GN/WH
1419
Right Rear Turn Signal Switch Signal
68
L-BU
292
Rear Defog Switch Signal
69
L-GN
66
A/C Request Signal
70
--
--
Not Used
71
PU
5234
Passenger Seat Belt Reminder Lamp
72
WH
193
Rear Defog Relay Control
Body Control Module (BCM) C3
Connector Part Information
OEM: 15404825
Service: 15404825
Description: 41-Way F Metri-Pack 280, 800 Series (RD)
Terminal Part Information
Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit
Body Control Module (BCM) C3 Pin
Wire Color
Circuit No.
Function
A1
TN
294
Door Lock Actuator Unlock Control (AU3)
A2
TN
294
Door Lock Actuator Unlock Control (AU3)
TN
294
Door Lock Actuator Unlock Control (AU3) (Sedan)
A3
D-BU/WH
149
Courtesy Lamp Supply Voltage
A4
GY
295
Door Lock Actuator Lock Control (AU3) (Driver)
GY
295
Door Lock Actuator Lock Control (AU3) (Passenger)
A5
GY
295
Door Lock Actuator Lock Control (AU3)
GY
295
Door Lock Actuator Lock Control (AU3) (Sedan)
A6
--
--
Not Used
A7
BN
9
Park Lamp Supply Voltage
A8
PK
339
Run/Crank Ignition 1 Voltage (UQ3)
A9
YE
18
Left Rear Stop/Turn Lamp Supply Voltage
A10
GY
157
Courtesy Lamp Control
A11
--
--
Not Used
A12
D-GN
19
Right Rear Stop/Turn Lamp Supply Voltage
B1
TN
694
Driver Door Lock Actuator Unlock Control
B2
--
--
Not Used
B3
RD/WH
1240
Battery Positive Voltage
RD/WH
1240
Battery Positive Voltage
B4
--
--
Not Used
B5
BN
4
Accessory Voltage
BN
4
Accessory Voltage (L61/LE5)
B6-B7
--
--
Not Available
B8-B11
--
--
Not Used
B12
GY
8
Instrument Panel Lamp Supply Voltage (LSJ) and (J41)
B12
GY
8
Instrument Panel Lamp Supply Voltage (L61/LE5)
GY
8
Instrument Panel Lamp Supply Voltage (L61/LE5)
C1-C2
--
--
Not Available
C3
D-GN
1301
Retained Accessory Power Fuse Supply Voltage
C4
--
--
Not Used
C5
D-GN
801
Retained Accessory Power Fuse Supply Voltage
C6-C7
--
--
Not Available
C8-C11
--
--
Not Used
C12
OG
228
Windshield Washer Pump Control
D1
RD/BK
142
Battery Positive Voltage
D2
--
--
Not Available
D3
--
--
Not Used
D4
RD/WH
840
Battery Positive Voltage
D5
D-GN
801
Retained Accessory Power Fuse Supply Voltage
D6
PK
739
Ignition 1 Voltage
D7
PK
1339
Ignition 1 Voltage
PK
1339
Ignition 1 Voltage
D8-D9
--
--
Not Used
D10
RD/BK
442
Battery Positive Voltage
D11
--
--
Not Used
D12
RD/WH
242
Battery Positive Voltage
Body Control Module (BCM) C4
Connector Part Information
OEM: 15356603
Service: 88988776
Description: 68-Way F Metri-Pack 280 Series (L-GY)
Terminal Part Information
Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit
Body Control Module (BCM) C4 Pin
Wire Color
Circuit No.
Function
A1
RD/WH
640
Battery Positive Voltage (UQ3)
RD/WH
640
Battery Positive Voltage (UQ3)
A2-A12
--
--
Not Used
B1
OG
228
Windshield Washer Pump Control
B2-B12
--
--
Not Used
C1
RD/WH
1440
Battery Positive Voltage
C2
GY
8
Instrument Panel Lamp Supply Voltage
GY
8
Instrument Panel Lamp Supply Voltage
C3-C5
--
--
Not Used
C6-C7
--
--
Not Available
C8
BN
4
Accessory Voltage
C9-C12
--
--
Not Used
D1
RD/WH
1040
Battery Positive Voltage
D2
--
--
Not Used
D3
YE
5199
Run/Crank Voltage
D4
BN
141
Ignition 3 Voltage
D5
--
--
Not Used
D6-D7
--
--
Not Available
D8-D9
--
--
Not Used
D10
RD/WH
1140
Battery Positive Voltage
RD/WH
1140
Battery Positive Voltage
D11-D12
--
--
Not Used
E1
RD/WH
140
Battery Positive Voltage
E2-E5
--
--
Not Used
E6
PK
439
Ignition 1 Voltage
PK
439
Ignition 1 Voltage (Coupe) (TV5)
E7-E11
--
--
Not Used
E12
BK/WH
651
Ground
F1
RD/WH
1540
Battery Positive Voltage
RD/WH
1540
Battery Positive Voltage
F2
GY
8
Instrument Panel Lamp Supply Voltage
F3
GY
8
Instrument Panel Lamp Supply Voltage
GY
8
Instrument Panel Lamp Supply Voltage
F4
PK
339
Ignition 1 Voltage
PK
339
Ignition 1 Voltage
F5
PK
339
Ignition 1 Voltage
PK
339
Ignition 1 Voltage
F6
PK
339
Ignition 1 Voltage
F7-F8
--
--
Not Used
F9
PK
1539
Ignition 1 Voltage
PK
1539
Ignition 1 Voltage
F10-F12
--
--
Not Used
Data Link Connector (DLC)
Connector Part Information
OEM: 15317575
Service: 15317575
Description: 16-Way F Metri-Pack 150 Series (BK)
Terminal Part Information
Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit
Data Link Connector (DLC) Pin
Wire Color
Circuit No.
Function
1
D-GN
5060
Low Speed GMLAN Serial Data
2
D-GN
1049
PCM Class 2 Serial Data (LSJ)
3
--
--
Not Used
4
BK
550
Ground
5
BK/WH
1051
Signal Ground
6
TN/BK
2500
High Speed GMLAN Serial Data (+)
7-13
--
--
Not Used
14
TN
2501
High Speed GMLAN Serial Data (-)
15
--
--
Not Used
16
RD/WH
40
Battery Positive Voltage
--------------------------------------------------------------------------------
Document ID# 1597745
2006 Chevrolet Cobalt
Dennis
Document ID# 1597745
2006 Chevrolet Cobalt
--------------------------------------------------------------------------------
Computer/Integrating Systems Connector End Views
Connector 1: Body Control Module (BCM) C1
Connector 2: Body Control Module (BCM) C2
Connector 3: Body Control Module (BCM) C3
Connector 4: Body Control Module (BCM) C4
Connector 5: Data Link Connector (DLC)
Body Control Module (BCM) C1
Connector Part Information
OEM: 15393122
Service: 88987847
Description: 72-Way F Micro 64 (GY)
Terminal Part Information
Pins: 1, 6 -- 8, 13 -- 20, 22, 26, 33, 35, 36, 44, 47, 51, 54, 55, 57, 60 -- 68, 70
Terminal/Tray: 15359541/4
Core/Insulation Crimp: M/M
Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)
Pins: 31
Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit
Body Control Module (BCM) C1 Pin
Wire Color
Circuit No.
Function
1
L-BU/BK
747
Left Rear Door Ajar Switch Signal (Sedan)
2-5
--
--
Not Used
6
WH
682
Door Lock Lock/Unlock Signal
7
WH
682
Door Lock Lock/Unlock Signal
8
WH
1080
Park Lamp Relay Control
9-12
--
--
Not Used
13
PK
849
Brake Fluid Level Sensor Signal
14
L-BU
1134
Park Brake Switch Signal
15
YE
5199
Run/Crank Relay Coil Control
16
WH
193
Rear Defog Relay Control
17
D-BU
15
Right Front Turn Signal Lamp Supply Voltage
18
D-GN
5060
Low Speed GMLAN Serial Data
19
TN/WH
746
Right Front Door Ajar Switch Signal
20
L-GN/BK
748
Right Rear Door Ajar Switch Signal (Sedan)
21
--
--
Not Used
22
GY/BK
745
Left Front Door Ajar Switch Signal
23-25
--
--
Not Used
26
L-GN
1478
Coolant Level Switch Signal (LSJ)
27-32
--
--
Not Used
33
D-GN/WH
1135
A/T Shift Lock Control Solenoid Supply Voltage
34
--
--
Not Used
35
L-BU
14
Left Front Turn Signal Lamp Supply Voltage
36
D-GN
5060
Low Speed GMLAN Serial Data
37-43
--
--
Not Used
44
TN/WH
1969
Headlamp High Beam Relay Control
45-46
--
--
Not Used
47
YE
196
Windshield Wiper Motor Park Switch Signal
48-50
--
--
Not Used
51
D-GN
113
Windshield Wiper Switch Signal
52-53
--
--
Not Used
54
YE
317
Fog Lamp Relay Control (T37)
55
OG/BK
744
Rear Compartment Lid Ajar Switch Signal
56
OG/B
737
Rear Compartment Lamp Control
57
BN
253
Rear Compartment Release Relay Control
58-59
--
--
Not Used
60
TN
28
Horn Relay Control
61
BK/WH
1251
Ground
62
RD/WH
1240
Battery Positive Voltage
63
GY
596
5-Volt Reference-1
64
BK/WH
751
Ground
65
TN/WH
1704
Low Reference
66
GY/BK
1798
Low Reference (Sedan)
67
YE/BK
61
Low Reference
68
WH
5075
Current Sensor Signal
69
--
--
Not Used
70
D-GN/WH
636
Ambient Air Temperature Sensor Signal
71-72
--
--
Not Used
Body Control Module (BCM) C2
Connector Part Information
OEM: 15393121
Service: 88987848
Description: 72-Way F Micro 64 (GY)
Terminal Part Information
Pins: 1 -- 5, 9, 10 -- 12, 14 -- 17, 19, 20, 26, 38, 44, 47, 51, 54 -- 58, 61, 62, 66 -- 69, 72
Terminal/Tray: 15359541/4
Core/Insulation Crimp: M/M
Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)
Pins: 70
Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit
Body Control Module (BCM) C2 Pin
Wire Color
Circuit No.
Function
1
BN/WH
2500
High Speed GMLAN Serial Data (+)
2
TN/BK
2500
High Speed GMLAN Serial Data (+)
3
YE
10
Headlamp Switch Signal
4
PU
524
Headlamp Dimmer Switch High Beam Signal
5
BN/WH
301
Park Lamp Switch On Signal
6-8
--
--
Not Used
9
WH
111
Hazard Switch Signal
10
TN
1576
Rear Compartment Lid Release Switch
11
D-GN
264
Security Indicator Supply Voltage
12
TN/WH
1455
Keyless Entry Program Enable Signal
13
--
--
Not Used
14
TN
28
Horn Relay Control
15
WH
103
Headlamp Switch Headlamps On Signal
16
OG
192
Front Fog Lamp Switch Signal (T37)
17
PU/WH
549
Headlamp Switch Headlamps Off Signal
18
--
--
Not Used
19
BN
2501
High Speed GMLAN Serial Data (-)
20
TN
2501
High Speed GMLAN Serial Data (-)
21-25
--
--
Not Used
26
D-GN
44
Instrument Panel Lamp Dimmer Switch Signal
27-37
--
--
Not Used
38
D-GN
5060
Low Speed GMLAN Serial Data
39-43
--
--
Not Used
44
L-GN/BK
1137
DRL Ambient Light Sensor Signal
45-46
--
--
Not Used
47
YE/BK
1138
DRL Ambient Light Sensor Low Reference
48-50
--
--
Not Used
51
BN
1356
Flash To Pass Switch Signal
52-53
--
--
Not Used
54
L-BU
20
Stop Lamp Supply Voltage
55
--
--
Not Used
56
WH
1390
Off/Run/Crank Voltage
57
GY
112
Windshield Wiper Switch Signal 1
58
PU
719
Low Reference
59-60
--
--
Not Used
61
GY
1884
Cruise Control Switch Signal (K34)
62
WH/BK
1073
Ignition Key Resistor Signal
63-65
--
--
Not Used
66
YE/BK
1418
Left Rear Turn Signal Switch Signal
67
D-GN/WH
1419
Right Rear Turn Signal Switch Signal
68
L-BU
292
Rear Defog Switch Signal
69
L-GN
66
A/C Request Signal
70
--
--
Not Used
71
PU
5234
Passenger Seat Belt Reminder Lamp
72
WH
193
Rear Defog Relay Control
Body Control Module (BCM) C3
Connector Part Information
OEM: 15404825
Service: 15404825
Description: 41-Way F Metri-Pack 280, 800 Series (RD)
Terminal Part Information
Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit
Body Control Module (BCM) C3 Pin
Wire Color
Circuit No.
Function
A1
TN
294
Door Lock Actuator Unlock Control (AU3)
A2
TN
294
Door Lock Actuator Unlock Control (AU3)
TN
294
Door Lock Actuator Unlock Control (AU3) (Sedan)
A3
D-BU/WH
149
Courtesy Lamp Supply Voltage
A4
GY
295
Door Lock Actuator Lock Control (AU3) (Driver)
GY
295
Door Lock Actuator Lock Control (AU3) (Passenger)
A5
GY
295
Door Lock Actuator Lock Control (AU3)
GY
295
Door Lock Actuator Lock Control (AU3) (Sedan)
A6
--
--
Not Used
A7
BN
9
Park Lamp Supply Voltage
A8
PK
339
Run/Crank Ignition 1 Voltage (UQ3)
A9
YE
18
Left Rear Stop/Turn Lamp Supply Voltage
A10
GY
157
Courtesy Lamp Control
A11
--
--
Not Used
A12
D-GN
19
Right Rear Stop/Turn Lamp Supply Voltage
B1
TN
694
Driver Door Lock Actuator Unlock Control
B2
--
--
Not Used
B3
RD/WH
1240
Battery Positive Voltage
RD/WH
1240
Battery Positive Voltage
B4
--
--
Not Used
B5
BN
4
Accessory Voltage
BN
4
Accessory Voltage (L61/LE5)
B6-B7
--
--
Not Available
B8-B11
--
--
Not Used
B12
GY
8
Instrument Panel Lamp Supply Voltage (LSJ) and (J41)
B12
GY
8
Instrument Panel Lamp Supply Voltage (L61/LE5)
GY
8
Instrument Panel Lamp Supply Voltage (L61/LE5)
C1-C2
--
--
Not Available
C3
D-GN
1301
Retained Accessory Power Fuse Supply Voltage
C4
--
--
Not Used
C5
D-GN
801
Retained Accessory Power Fuse Supply Voltage
C6-C7
--
--
Not Available
C8-C11
--
--
Not Used
C12
OG
228
Windshield Washer Pump Control
D1
RD/BK
142
Battery Positive Voltage
D2
--
--
Not Available
D3
--
--
Not Used
D4
RD/WH
840
Battery Positive Voltage
D5
D-GN
801
Retained Accessory Power Fuse Supply Voltage
D6
PK
739
Ignition 1 Voltage
D7
PK
1339
Ignition 1 Voltage
PK
1339
Ignition 1 Voltage
D8-D9
--
--
Not Used
D10
RD/BK
442
Battery Positive Voltage
D11
--
--
Not Used
D12
RD/WH
242
Battery Positive Voltage
Body Control Module (BCM) C4
Connector Part Information
OEM: 15356603
Service: 88988776
Description: 68-Way F Metri-Pack 280 Series (L-GY)
Terminal Part Information
Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit
Body Control Module (BCM) C4 Pin
Wire Color
Circuit No.
Function
A1
RD/WH
640
Battery Positive Voltage (UQ3)
RD/WH
640
Battery Positive Voltage (UQ3)
A2-A12
--
--
Not Used
B1
OG
228
Windshield Washer Pump Control
B2-B12
--
--
Not Used
C1
RD/WH
1440
Battery Positive Voltage
C2
GY
8
Instrument Panel Lamp Supply Voltage
GY
8
Instrument Panel Lamp Supply Voltage
C3-C5
--
--
Not Used
C6-C7
--
--
Not Available
C8
BN
4
Accessory Voltage
C9-C12
--
--
Not Used
D1
RD/WH
1040
Battery Positive Voltage
D2
--
--
Not Used
D3
YE
5199
Run/Crank Voltage
D4
BN
141
Ignition 3 Voltage
D5
--
--
Not Used
D6-D7
--
--
Not Available
D8-D9
--
--
Not Used
D10
RD/WH
1140
Battery Positive Voltage
RD/WH
1140
Battery Positive Voltage
D11-D12
--
--
Not Used
E1
RD/WH
140
Battery Positive Voltage
E2-E5
--
--
Not Used
E6
PK
439
Ignition 1 Voltage
PK
439
Ignition 1 Voltage (Coupe) (TV5)
E7-E11
--
--
Not Used
E12
BK/WH
651
Ground
F1
RD/WH
1540
Battery Positive Voltage
RD/WH
1540
Battery Positive Voltage
F2
GY
8
Instrument Panel Lamp Supply Voltage
F3
GY
8
Instrument Panel Lamp Supply Voltage
GY
8
Instrument Panel Lamp Supply Voltage
F4
PK
339
Ignition 1 Voltage
PK
339
Ignition 1 Voltage
F5
PK
339
Ignition 1 Voltage
PK
339
Ignition 1 Voltage
F6
PK
339
Ignition 1 Voltage
F7-F8
--
--
Not Used
F9
PK
1539
Ignition 1 Voltage
PK
1539
Ignition 1 Voltage
F10-F12
--
--
Not Used
Data Link Connector (DLC)
Connector Part Information
OEM: 15317575
Service: 15317575
Description: 16-Way F Metri-Pack 150 Series (BK)
Terminal Part Information
Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit
Data Link Connector (DLC) Pin
Wire Color
Circuit No.
Function
1
D-GN
5060
Low Speed GMLAN Serial Data
2
D-GN
1049
PCM Class 2 Serial Data (LSJ)
3
--
--
Not Used
4
BK
550
Ground
5
BK/WH
1051
Signal Ground
6
TN/BK
2500
High Speed GMLAN Serial Data (+)
7-13
--
--
Not Used
14
TN
2501
High Speed GMLAN Serial Data (-)
15
--
--
Not Used
16
RD/WH
40
Battery Positive Voltage
--------------------------------------------------------------------------------
Document ID# 1597745
2006 Chevrolet Cobalt
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