2005 Jeep Grand Cherokee Ignition Wiring Diagram

12volts lt. blue/red (20A) + ignition harness

Starter pink/orange + ignition harness

Second Starter purple/brown - ignition harness

Notes: The second starter wire is negative trigger thru a 150 ohm resistor. MUST use a relay.

Ignition pink/lt. green + ignition harness

Second Ignition

Third Ignition

Accessory same as second starter wire - ignition harness

Notes: The accessory wire is negative trigger thru a 560 ohm resistor. MUST use a relay.

Second Accessory

Keysense

Power Lock purple/dk. green - DKP or cluster, conn. 3, pin 17

Notes: Vehicles with memory seats, have to go to the driver memory mirror module in the door to get this wire. Lock is negative trigger thru a 330 ohm resistor. Unlock is negative trigger thru a 100 ohm resistor. MUST use relays.

Power Unlock same as power lock wire

Lock Motor lt. green/lt. blue 5wi plug above fuses, pin 36

Unlock Motor lt. green/dk. green 5wi plug above fuses, pin 35

Parking Lights+ do not use, relay rests at gnd

Parking Lights-

Hazards white/dk. blue - SCM, 16 pin plug, pin 16

Notes: The SCM (Steering Column Module) is in the steering column.

Turn Signal(L) use hazards wire

Turn Signal® use hazards wire

Reverse Light white/lt. green + IPM , conn. 2, pin 2

Notes: The IPM (Integrated Power Module) is on the driver fender, behind the battery.

Door Trigger see notes - each kick or cluster, conn. 3

Notes: The LF door is purple in pin 6. The RF door is purple/white in pin 7. The LR door is purple/gray in pin 4. The RR door is purple/yellow in pin 5. Use all four wires and diode isolate each.

Dome Supervision yellow/orange - any light or cluster, conn 2, pin 12

Trunk/Hatch Pin pur/org and pur/brn (glass) - DKP or cluster, conn. 3, pins 3, 2

Hood Pin purple/lt. blue (export only) - pin sw. or FCM, 24 pin plug, pin 23

Notes: The FCM (Front Control Module) is on the driver fender, behind the battery.

Trunk/Hatch Release orange/purple - DKP or cluster, conn. 3, pin 8

Notes: Meter this wire while opening the rear glass from the switch on the rear hatch.

Power Sliding Door N/A

Factory Alarm Arm

Factory Alarm Disarm

Disarm No Unlock with ignition and Sentry Key

Tachometer NOT red/tan or dk. grn/lt. grn ac any ignition coil or fuel injector

Wait to start N/A

Brake Wire white/tan or white/lt. green + brake pedal switch

Parking Brake dk. green/white - switch or cluster, conn. 1, pin 16

Horn Trigger dk. green/orange + horn or IPM, conn. 2, pin 35

Notes: The IPM (Integrated Power Module) is on the driver fender, behind the battery.

Memory Seat 1 lt. green/orange - driver memory mirror module in door

Notes: The memory seats are negative trigger thru resistors. The resistor values are not known at this time. Cut the wire and meter it while pressing the memory seat buttons.

Memory Seat 2 same as memory seat 1 wire -

Memory Seat 3 N/A -

Immobilizer Bypass Module: Required: Yes Type: Sentry Key Part #: 556C, 556U, or 555U

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Source: https://www.tintdude.com/forums/topic/16300-2005-jeep-grand-cherokee-wiring/