1988 Power Door Locks JEEP

DESCRIPTION

Jeep vehicles with power door locks use a motor-actuated lock system, controlled by rocker switches. Operation of switch assembly controls the actuator motor.

Power door locks are protected by a 30-amp circuit breaker located in the fuse block. Power door locks will not operate from outside the vehicle.

TESTING

SWITCH

Using ohmmeter, test switches for continuity. Connect ohmmeter across terminals as shown. See Fig. 1. Continuity should exist between terminals in all positions.

Unlock

Fig. 1: Checking Switch Continuity Courtesy of Chrysler Motors.

ACTUATOR MOTOR

Connect ammeter to actuator motor terminals. Operate door switch and note reading. Current draw should not exceed 8 amps at room temperature. Actuator should complete full travel within one second. Replace actuator motor if not within specification.

CIRCUIT BREAKER

• Disconnect harness connector from fuse block. Using test
  light, check fuse block harness connection for voltage. If there is no
  battery voltage at connection, check for burnt fusible link in engine
  compartment.

• Check circuit breaker continuity if voltage exists. Using
  ohmmeter, test circuit breaker for continuity. Replace circuit breaker
  if no continuity exists.

• If circuit breaker tests okay, check for battery voltage
  at circuit breaker connection of fuse block with wiring harness
  installed. If voltage exists at wiring harness but not at circuit
  breaker connection, check fuse block for damage.

REMOVAL & INSTALLATION