Diagnostic Routine H

Diagnostic Routine H

Diagnostic Overview

U0140:87

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions






Pinpoint Test

1. VERIFY THE CUSTOMER CONCERN

1. Ignition ON.

2. Verify that there is an observable symptom present.

Is an observable symptom present?






2. CHECK THE COMMUNICATION NETWORK

1. Ignition ON.

2. Using a scan tool, perform Network Test.

3. Carry out the network test.

Does the BCM (Body Control Module) pass the network test?






3. RECHECK THE PAM (Parking Aid Module) DTCs (Diagnostic Trouble Codes)

1. Clear the DTCs (Diagnostic Trouble Codes).

2. Operate the system and test the system for normal operation.

3. Repeat the PAM (Parking Aid Module) self-test.

Is DTC (Diagnostic Trouble Code) U0140:87 still present?






4. CHECK FOR DTC (Diagnostic Trouble Code) U0140:00 OR DTC (Diagnostic Trouble Code) U0140:87 IN OTHER MODULES

1. Clear all DTCs (Diagnostic Trouble Codes).

2. Ignition OFF.

3. Wait 10 seconds.

4. Using a scan tool, perform Self-Test.

5. Retrieve the continuous memory DTCs (Diagnostic Trouble Codes) from all modules.

Is DTC (Diagnostic Trouble Code) U0140:00 or DTC (Diagnostic Trouble Code) U0140:87 set in any module?






5. CHECK FOR CORRECT PAM (Parking Aid Module) OPERATION

1. Disconnect the PAM (Parking Aid Module) connector.

2. Check for:

- corrosion
- damaged pins
- pushed-out pins

3. Connect the PAM (Parking Aid Module) connector and make sure it seats correctly.

4. Operate the system and verify the concern is still present.

Is the concern still present?