No. 2 Keyless Entry System Does Not Function (Trunk)

Flowchart No.2 Symptom Keyless entry system does not function (Trunk)

Possible cause
^ Burnt ROOM 15A fuse
^ Burnt DOOR LOCK 30A fuse
^ Damaged keyless unit
^ Damaged CPU
^ Damaged transmitter
^ Damaged trunk lid opener relay
^ Damaged trunk lid actuator
^ Open or short circuit in wiring harness
^ Poor connection of connector

Step 1

Fuse Inspection:

Action Chart:

Check the ROOM 15A fuse in the fuse block.

Step 2
1. Open the trunk lid.

Voltmeter Connection:

Action Chart:

2. Measure the voltage at the (L/R) terminal wire of the keyless unit connector in the trunk compartment

Step 3
1. Disconnect the keyless unit connector.

Ohmmeter Connection:

Action Chart:

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

Step 4

Voltmeter Connection:

Action Chart:

Measure the voltage at terminal wire 2R (R/Y) of the CPU connector.

Step 5

Voltmeter Connection:

Action Chart:

Measure the voltage at terminal E (R/Y) wires of the keyless unit connectors.

Step 6

Fuse Inspection:

Action Chart:

Check the DOOR LOCK 30A fuse in the fuse block.

Step 7
1. Remove the trunk side trim.

Voltmeter Connection:

Action Chart:

2. Measure the voltage at the (W/G) terminal wire of the trunk lid opener relay connector.

Step 8

Voltmeter Connection:

Action Chart:

Measure the voltage at the (L/R) terminal wire of the trunk lid opener relay connector.

Step 9

Voltmeter Connection:

Action Chart:

Measure the voltage at the (LG/R), (G/W) terminal wire of the trunk lid opener relay connector, with the transmitter by pressing the TRUNK button.

Step 10

Voltmeter Connection:

Action Chart:

Measure the voltage at terminal wire 20 (LG/R) of the CPU connector.

Step 11

Voltmeter Connection:

Action Chart:

Measure the voltage at the (LG/R) terminal wire of the trunk lid actuator connector.

Step 12
1. Disconnect the trunk lid actuator connector.

Ohmmeter Connection:

Action Chart:

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