Diagnostic Routine X
Diagnostic Routine X
Diagnostic Overview
The Intelligent Access (IA) Feature is Inoperative From a Single or More Than One Door
Refer to Wiring Diagram Set 117 for schematic and connector information Electrical Diagrams.
Normal Operations and Fault Conditions
REFER to Door Intelligent Access (IA) .
DTC Fault Trigger Conditions
Visual Inspection and Diagnostic Pre-checks
- Inspect the exterior door handles.
Pinpoint Test
1. CHECK THE DOOR LOCK OPERATION
1. Lock and unlock the doors using a door lock control switch.
Do the doors lock and unlock?
2. CHECK THE IA (Intelligent Access) OPERATION FROM ALL DOORS
1. Operate the IA (Intelligent Access) feature from both LH (Left Hand) doors.
2. Operate the IA (Intelligent Access) feature from both RH (Right Hand) doors.
Is the IA (Intelligent Access) feature inoperative from both doors on the same side of the vehicle?
3. CHECK THE EXTERNAL IA (Intelligent Access) ANTENNA
1. Ignition OFF.
2. Disconnect: LF (Left Front) Exterior Door Handle (if the LH (Left Hand) door IA (Intelligent Access) is inoperative).
3. Disconnect: RF (Right Front) Exterior Door Handle (if the RH (Right Hand) door IA (Intelligent Access) is inoperative).
4. Measure:
Is the resistance between 1 and 3 ohms?
4. CHECK THE EXTERNAL IA (Intelligent Access) ANTENNA CIRCUITS FOR A SHORT TO VOLTAGE
1. Disconnect: RFA (Remote Function Actuator) Module C4392A.
2. Place an IA (Intelligent Access) key in the backup slot and press the START/STOP switch to switch the ignition to ON.
3. Measure:
Is any voltage present?
5. CHECK THE EXTERNAL IA (Intelligent Access) ANTENNA CIRCUITS FOR A SHORT TO GROUND
1. Ignition OFF.
2. Measure:
Are the resistances greater than 10,000 ohms?
6. CHECK THE EXTERNAL IA (Intelligent Access) ANTENNA CIRCUITS FOR AN OPEN
1. Measure:
Are the resistances less than 3 ohms?
7. CHECK THE EXTERIOR DOOR HANDLE
1. Disconnect: Suspect Exterior Door Handle.
2. Disconnect: Opposite Side Exterior Door Handle.
3. Transfer the exterior door handle from the opposite side of the vehicle to the suspect exterior door. For example, if the LF (Left Front) exterior door handle is suspect, transfer the RF (Right Front) exterior door handle to the LF (Left Front) door.
4. Operate the IA (Intelligent Access) from the inoperative door.
Does the IA (Intelligent Access) now operate?
8. CHECK FOR VOLTAGE TO THE SUSPECT EXTERIOR DOOR HANDLE
1. Disconnect: Suspect Exterior Door Handle.
2. Measure:
Is the voltage greater than 11 volts?
9. CHECK THE EXTERIOR DOOR HANDLE VOLTAGE SUPPLY CIRCUIT
1. Measure:
Is the voltage greater than 11 volts?
10. CHECK THE CAPACITIVE SENSOR INPUT CIRCUITS FOR A SHORT TO VOLTAGE
1. Ignition OFF.
2. Disconnect: RFA (Remote Function Actuator) Module C4392E.
3. Ignition ON.
4. Measure:
Is any voltage present?
11. CHECK THE CAPACITIVE SENSOR INPUT CIRCUITS FOR A SHORT TO GROUND
1. Ignition OFF.
2. Measure:
Are the resistances greater than 10,000 ohms?
12. CHECK THE LOCK AND UNLOCK CAPACITIVE SENSOR INPUT CIRCUIT FOR AN OPEN
1. Measure:
Are the resistances less than 3 ohms?
13. 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?
