Listed below is the vehicle specific wiring diagram for your car alarm, remote starter or keyless entry installation into your 1988-1989 Isuzu Pickup . This information outlines the wires location, color and polarity to help you identify the proper connection spots in the vehicle. Please be sure to test all of your wires with a digital multimeter before making any connections. More information on using a multimeter and testing wires please see our Technical Support Area.
PART
COLOR
LOCATION
12 VOLT
CONSTANT
BLACK (+)
IGNITION SWITCH HARNESS
STARTER
WHITE/BLUE (+) See NOTE *1
IGNITION SWITCH HARNESS
STARTER
2
GREEN (+) See NOTE *1
IGNITION SWITCH HARNESS
IGNITION
1
BLACK/YELLOW (+)
IGNITION SWITCH HARNESS
IGNITION
2
N/A
IGNITION
3
N/A
ACCESSORY/HEATER
BLOWER 1
BLUE (+)
IGNITION SWITCH HARNESS
ACCESSORY/HEATER
BLOWER 2
N/A
KEYSENSE
N/A
PARKING
LIGHTS ( - )
N/A
PARKING
LIGHTS ( + )
GREEN/RED (+)
@ STEERING COLUMN HARNESS
POWER LOCK
ADD ACTUATORS
TO BOTH DOORS, See DIAGRAM
POWER UNLOCK
ADD ACTUATORS
TO BOTH DOORS, See DIAGRAM
DOOR TRIGGER
RED/BLUE (-)
@ EITHER DOOR PIN SWITCH
DOMELIGHT
SUPERVISION
USE DOOR TRIGGER, Requires Part #775 Relay
TRUNK RELEASE
N/A
SLIDING
POWER DOOR
N/A
HORN
BLACK/ORANGE (-)
@ STEERING COLUMN HARNESS
TACH
BLUE
@ IGNITION COIL
WAIT TO
START LIGHT
N/A
BRAKE
RED(+)
@ SWITCH ABOVE BRAKE PEDAL
FACTORY
ALARM DISARM
N/A
ANTI-THEFT
N/A
EXTRA
INFORMATION
NOTE *1 When Installing a REMOTE STARTER, you MUST use BOTH Starter #1 and Starter #2 wires. Both wires must be connected to the STARTER/CRANKING Output wire from the Remote Starter or the vehcile will NOT Remote Start when the Engine is cold.