Malibu Classic wiring
Item     Wire Color     Polarity     Wire Location
12 Volts     red     +     ignition harness
     Remove the radio, without unplugging it, to access the ignition harness.
Second 12 Volts               
Starter     yellow     +     ignition harness
     Remove the radio, without unplugging it, to access the ignition harness.
Second Starter     N/A          
Ignition     pink     +     ignition harness
     Remove the radio, without unplugging it, to access the ignition harness.
Second Ignition     dk. green     +     ignition harness
     Remove the radio, without unplugging it, to access the ignition harness.
Third Ignition     N/A          
Accessory     orange     +     ignition harness
     Remove the radio, without unplugging it, to access the ignition harness.
Second Accessory     brown     +     ignition harness
     Remove the radio, without unplugging it, to access the ignition harness.
Third Accessory     N/A          
Keysense               
Data Bus     yellow (resistor code), black (ground)     Passlock 2     Passlock sensor on ignition key cylinder
Can Bus High               
Can Bus Low               
Can Bus Sw     purple     data     data link connector under driver dash, pin 2
Power Lock     white     -     driver kick, door harness
     Lock requires a negative trigger, and unlock requires a negative trigger thru a 1,500 ohm resistor. MUST use relays. Must close doors to lock with a single pulse.
Power Unlock     same wire as power lock          
Lock Motor     gray     5wi     driver kick, door harness
Driver Unlock Motor     tan     5wi     driver kick, door harness
Parking Lights (-)               
Parking Lights (+)     brown     +     passenger kick or column
Hazards               
Turn Signal (Left)               
Turn Signal (Right)               
Headlight     dk. blue & pink     -     steering column
     Requires high current ground. MUST use relays.
AutoLights               
Reverse Light               
Left Front Door Trigger     lt. GREEN/ black & lt. blue     -     
     The lt. GREEN/ black is located in the driver kick and catches only the driver door. The lt. blue is located in the harness coming from the driver running board going under the driver seat and it catches all other doors. Use both door trigger wires and diode isolate each.
Right Front Door Trigger               
Left Rear Door Trigger               
Right Rear Door Trigger               
Dome Supervision     white     -     dash light or column
Trunk/Hatch Pin     ORANGE / black     -     light in trunk
Rear Glass Pin               
Hood Pin               
Trunk/Hatch Release     BLACK/ white     +     driver kick panel
Trunk Release Motor               
Fuel Door Release               
Power Sliding Door (Left)     N/A          
Power Sliding Door (Right)               
Factory Alarm Arm               
Factory Alarm Disarm               
Disarm No Unlock               
Trunk Alarm Shunt               
Tachometer     PURPLE / white     ac     ignition coil or ECM
     The ECM (Engine Control Module) is located under the driver side dash to the left of the steering column.
Wait to Start     N/A          
Neutral Safety               
Clutch Pedal               
Fuel Pump               
Rear Defroster               
Mirror Defroster               
Left Front Heated Seat               
Right Front Heated Seat               
Speed Sense     dk. GREEN / WHITE          ECM
     The ECM (Engine Control Module) is located under the driver side dash to the left of the steering column.
Brake Wire     lt. blue     +     brake pedal switch
Parking Brake               
Horn Trigger     black     -     steering column
Wipers     dk. green & purple     +     steering column
Malibu Reg and Maxx
Item     Wire Color     Polarity     Wire Location
12 Volts     RED / black (50A)     +     BCM, C3, pin D1
     The BCM (Body Control Module) is part of the fuse/relay box on the front passenger side of the center console. It has the following connectors: C1-72 pin gray plug, C2-72 pin gray plug, C3-41 pin red plug, and C4-68 pin lt. gray plug.
Second 12 Volts     RED / black (30A)     +     BCM, C3, pin D12
     The BCM (Body Control Module) is part of the fuse/relay box on the front passenger side of the center console. It has the following connectors: C1-72 pin gray plug, C2-72 pin gray plug, C3-41 pin red plug, and C4-68 pin lt. gray plug.
Starter     yellow (not for remote start)     -     PCM, blue plug, pin 48 or 23
     The PCM (Powertrain Control Module) is in front of the battery on the driver side fender.
Second Starter     white     +9.6K ohms     ignition harness or BCM, C2, pin 56
     The BCM (Body Control Module) is part of the fuse/relay box on the front passenger side of the center console. It has the following connectors: C1-72 pin gray plug, C2-72 pin gray plug, C3-41 pin red plug, and C4-68 pin lt. gray plug. If interface module is not available, see Tech Doc 1605.
Ignition     pink     +     ignition harness or BCM, C4, pin D3
     The BCM (Body Control Module) is part of the fuse/relay box on the front passenger side of the center console. It has the following connectors: C1-72 pin gray plug, C2-72 pin gray plug, C3-41 pin red plug, and C4-68 pin lt. gray plug.
Second Ignition     N/A          
Third Ignition     N/A          
Accessory     brown     +     ignition harness or BCM, C4, pin C8
     The BCM (Body Control Module) is part of the fuse/relay box on the front passenger side of the center console. It has the following connectors: C1-72 pin gray plug, C2-72 pin gray plug, C3-41 pin red plug, and C4-68 pin lt. gray plug.
Second Accessory     same as second starter     +6.3K ohms     
Third Accessory     N/A          
Keysense     same as second starter          
Data Bus     white (resistor code), WHITE/ black (5V reference)     mux     ignition harness or BCM, C2, pins 56 and 62
     The BCM (Body Control Module) is part of the fuse/relay box on the front passenger side of the center console. It has the following connectors: C1-72 pin gray plug, C2-72 pin gray plug, C3-41 pin red plug, and C4-68 pin lt. gray plug. The keyless link wire is lt. green at the BCM, C2, pin 12.
Can Bus High               
Can Bus Low               
Can Bus Sw     dk. green     data     data link connector under driver dash, pin 1
Power Lock     white     -     driver kick or BCM, C1, pin 66
     Lock is a straight negative trigger. Unlock is negative trigger thru a 1.5K ohm resistor. MUST use relays. The BCM (Body Control Module) is part of the fuse/relay box on the front passenger side of the center console. It has the following connectors: C1-72 pin gray plug, C2-72 pin gray plug, C3-41 pin red plug, and C4-68 pin lt. gray plug.
Power Unlock     same as power lock wire          
Lock Motor     gray/black to gray     5wi     driver kick or BCM, C3, pin A5
     The BCM (Body Control Module) is part of the fuse/relay box on the front passenger side of the center console. It has the following connectors: C1-72 pin gray plug, C2-72 pin gray plug, C3-41 pin red plug, and C4-68 pin lt. gray plug.
Driver Unlock Motor     tan     5wi     driver kick or BCM, C3, pin B1
     The BCM (Body Control Module) is part of the fuse/relay box on the front passenger side of the center console. It has the following connectors: C1-72 pin gray plug, C2-72 pin gray plug, C3-41 pin red plug, and C4-68 pin lt. gray plug.
Parking Lights (-)     BROWN / white     -     switch or BCM, C2, pin 5
     The BCM (Body Control Module) is part of the fuse/relay box on the front passenger side of the center console. It has the following connectors: C1-72 pin gray plug, C2-72 pin gray plug, C3-41 pin red plug, and C4-68 pin lt. gray plug.
Parking Lights (+)     brown     +     driver kick or BCM, C3, pin A7
     The BCM (Body Control Module) is part of the fuse/relay box on the front passenger side of the center console. It has the following connectors: C1-72 pin gray plug, C2-72 pin gray plug, C3-41 pin red plug, and C4-68 pin lt. gray plug.
Hazards     white     -     switch or BCM, C2, pin 9
     The BCM (Body Control Module) is part of the fuse/relay box on the front passenger side of the center console. It has the following connectors: C1-72 pin gray plug, C2-72 pin gray plug, C3-41 pin red plug, and C4-68 pin lt. gray plug.
Turn Signal (Left)     dk. blue (F), yellow (R)     +     BCM, C1, pin 38 and C3, pin A9
     The BCM (Body Control Module) is part of the fuse/relay box on the front passenger side of the center console. It has the following connectors: C1-72 pin gray plug, C2-72 pin gray plug, C3-41 pin red plug, and C4-68 pin lt. gray plug.
Turn Signal (Right)     dk. green (F), dk. green (R)     +     BCM, C1, pin 56 and C3, pin A12
     The BCM (Body Control Module) is part of the fuse/relay box on the front passenger side of the center console. It has the following connectors: C1-72 pin gray plug, C2-72 pin gray plug, C3-41 pin red plug, and C4-68 pin lt. gray plug.
Headlight     white     -     switch or BCM, C2, pin 15
     The BCM (Body Control Module) is part of the fuse/relay box on the front passenger side of the center console. It has the following connectors: C1-72 pin gray plug, C2-72 pin gray plug, C3-41 pin red plug, and C4-68 pin lt. gray plug.
AutoLights               
Reverse Light     lt. green     +     fuse block, driver side of trunk
Left Front Door Trigger     gray/black (D), tan/white (P)     -     each kick or BCM, C1, pins 51 and 72
     Use both wires and diode isolate each. The BCM (Body Control Module) is part of the fuse/relay box on the front passenger side of the center console. It has the following connectors: C1-72 pin gray plug, C2-72 pin gray plug, C3-41 pin red plug, and C4-68 pin lt. gray plug.
Right Front Door Trigger               
Left Rear Door Trigger               
Right Rear Door Trigger               
Dome Supervision     gray     -     BCM, C3, pin A10
     The BCM (Body Control Module) is part of the fuse/relay box on the front passenger side of the center console. It has the following connectors: C1-72 pin gray plug, C2-72 pin gray plug, C3-41 pin red plug, and C4-68 pin lt. gray plug.
Trunk/Hatch Pin     ORANGE / black     -     BCM, C1, pin 18
     The BCM (Body Control Module) is part of the fuse/relay box on the front passenger side of the center console. It has the following connectors: C1-72 pin gray plug, C2-72 pin gray plug, C3-41 pin red plug, and C4-68 pin lt. gray plug.
Rear Glass Pin               
Hood Pin     pink/black     -     pin switch or BCM, C1, pin 69
     The BCM (Body Control Module) is part of the fuse/relay box on the front passenger side of the center console. It has the following connectors: C1-72 pin gray plug, C2-72 pin gray plug, C3-41 pin red plug, and C4-68 pin lt. gray plug.
Trunk/Hatch Release     BROWN / white     -     switch or BCM, C1, pin 71
     The BCM (Body Control Module) is part of the fuse/relay box on the front passenger side of the center console. It has the following connectors: C1-72 pin gray plug, C2-72 pin gray plug, C3-41 pin red plug, and C4-68 pin lt. gray plug.
Trunk Release Motor               
Fuel Door Release               
Power Sliding Door (Left)     N/A          
Power Sliding Door (Right)               
Factory Alarm Arm     arms on lock with door open          
Factory Alarm Disarm     purple     -     driver kick, door harness
     This wire will disarm the factory alarm if it has not been triggered, but might not disarm if it has. This wire will also unlock the doors with a double pulse.
Disarm No Unlock     with ignition and Passkey          
Trunk Alarm Shunt               
Tachometer     NOT pink     ac     any fuel injector
Wait to Start     N/A          
Neutral Safety               
Clutch Pedal               
Fuel Pump               
Rear Defroster               
Mirror Defroster               
Left Front Heated Seat               
Right Front Heated Seat               
Speed Sense     brown (3.5L only)          PCM, blue plug, pin 22
     The PCM (Powertrain Control Module) is in front of the battery on the driver side fender.
Brake Wire     white     +     BCM, C1, pin 42
     The BCM (Body Control Module) is part of the fuse/relay box on the front passenger side of the center console. It has the following connectors: C1-72 pin gray plug, C2-72 pin gray plug, C3-41 pin red plug, and C4-68 pin lt. gray plug.
Parking Brake     lt. blue     -     switch or BCM, C1, pin 59
     The BCM (Body Control Module) is part of the fuse/relay box on the front passenger side of the center console. It has the following connectors: C1-72 pin gray plug, C2-72 pin gray plug, C3-41 pin red plug, and C4-68 pin lt. gray plug.
Horn Trigger     tan     -     switch or BCM, C2, pin 14
     The BCM (Body Control Module) is part of the fuse/relay box on the front passenger side of the center console. It has the following connectors: C1-72 pin gray plug, C2-72 pin gray plug, C3-41 pin red plug, and C4-68 pin lt. gray plug.
Wipers     dk. green     +     BCM, C1, pin 22
     The BCM (Body Control Module) is part of the fuse/relay box on the front passenger side of the center console. It has the following connectors: C1-72 pin gray plug, C2-72 pin gray plug, C3-41 pin red plug, and C4-68 pin lt. gray plug.