No. 4 Power Door Locks at One Door Does Not Operate W/ Keyless

Flowchart No. 4 Symptom Power door lock system at specific door does not function (with keyless entry system)

Possible cause
^ Damaged CPU
^ Damaged door lock timer unit
^ Damaged door lock-unit switch
^ Damaged door lock actuator
^ Open or short circuit in wiring harness Poor connection of connector

Step 1
1. Remove the door trim and door screen.

Voltmeter Connection:

Reference:

2. Measure the voltage at the terminal wires of the door lock actuator connector with the driver's door lock knob in the following positions.
3. If correct, check the door lock actuator.
4. If not as specified, go to Step 2 (door lock timer unit-door lock actuator).

Step 2

Voltmeter Connection:

Action Chart:

Measure the voltage at the (L/R) terminal wire of the door lock-link switch connector.

Step 3
1. Disconnect the door lock-link switch connector.

Ohmmeter Connection:

Action Chart:

2. Check for continuity between the (B) terminal wire and ground.

Step 4

Reference:

1. Measure the voltage at the terminal wire of the door lock-link switch connector with the driver's door lock knob in the following positions.
2. If correct, check the door lock actuators.
3. If not as specified, go to Step 5

Step 5

Voltmeter Connection:

Reference:

1. Measure the voltage at the terminal wires of the door lock tinier unit connector with the following terminal wires grounded.
2. If correct, go to Step 6.
3. If not as specified, check the door lock timer unit.

Step 6

Voltmeter Connection:

Action Chart:

Measure the voltage at the 2E (BR), 2l(O) and 2G (R) terminal wires of the CPU connector.