Diagnostic Routine W

Diagnostic Routine W

Diagnostic Overview

The Intelligent Access (IA) Feature is Inoperative From All Doors

Normal Operations and Fault Conditions

REFER to Door Intelligent Access (IA) .

If the vehicle has been inactive for 28 days or longer, the IA (Intelligent Access) feature is switched off to conserve battery power. The IA (Intelligent Access) feature is enabled again when the ignition is switched to RUN.

DTC Fault Trigger Conditions






Visual Inspection and Diagnostic Pre-checks

- Inspect the RJB (Rear Junction Box) fuse 3 (5A).

- Inspect the IA (Intelligent Access) key.

Pinpoint Test

1. CHECK THE RKE (Remote Keyless Entry) OPERATION

1. Press the unlock button on an IA (Intelligent Access) key.

Does the driver door unlock?






2. CHECK THE DOOR LOCK OPERATION

1. Lock and unlock the doors using the door lock control switch.

Does the doors lock and unlock?






3. CHECK THE IA (Intelligent Access) KEY

1. Place the IA (Intelligent Access) key on the center console and start the engine.

Does the engine start?






4. CHECK FOR VOLTAGE TO THE EXTERIOR DOOR HANDLES

1. Ignition OFF.

2. Disconnect: LF (Left Front) Exterior Door Handle.

3. Measure:





Is the voltage greater than 11 volts?






5. CHECK THE EXTERIOR DOOR HANDLE GROUND CIRCUIT FOR A SHORT TO VOLTAGE

1. Disconnect: RFA (Remote Function Actuator) Module C4392C.

2. Disconnect: Ignition relay.

3. Connect:





4. Measure:





Is any voltage present?






6. CHECK THE EXTERIOR DOOR HANDLE GROUND CIRCUIT FOR A SHORT TO GROUND

1. Measure:





Is the resistance greater than 10,000 ohms?






7. CHECK THE EXTERIOR DOOR HANDLE GROUND CIRCUIT FOR AN OPEN

1. Measure:





Is the resistance less than 3 ohms?






8. CHECK FOR CORRECT RFA (Remote Function Actuator) MODULE OPERATION

1. Ignition OFF.

2. Disconnect and inspect all RFA (Remote Function Actuator) module connectors.

3. Repair:

- corrosion (install new connectors or terminals- clean module pins)
- damaged or bent pins- install new terminals pins
- pushed-out pins- install new pins as necessary

4. Reconnect all the RFA (Remote Function Actuator) module connectors and make sure they seat and latch correctly.

5. Operate the system and determine if the concern is still present.

Is the concern still present?