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Diagnostic Routine Q

Diagnostic Overview

U0151:00

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions






Pinpoint Test

1. VERIFY THE CUSTOMER CONCERN

1. Ignition ON.

2. Verify 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 the network test.

Does the RCM (Restraints Control Module) pass the network test?








3. CHECK THE AUDIO SYSTEM MODULES FOR BATTERY VOLTAGE OUT-OF-RANGE DTCs (Diagnostic Trouble Codes)

1. Using a scan tool, perform the APIM (Accessory Protocol Interface Module) and the RCM (Restraints Control Module) self-tests.

Are any low or high voltage DTCs (Diagnostic Trouble Codes) recorded in the APIM (Accessory Protocol Interface Module) or the RCM (Restraints Control Module)?








4. CHECK FOR DTC (Diagnostic Trouble Code) U0151:00 SET IN OTHER MODULES

1. Ignition ON.

2. Using a scan tool, clear continuous memory DTCs (Diagnostic Trouble Codes) from all modules.

3. Ignition OFF.

4. Wait at least 10 seconds.

5. Ignition ON.

6. Using a scan tool, retrieve all the continuous memory DTCs (Diagnostic Trouble Codes) from all modules.

Is DTC (Diagnostic Trouble Code) U0151:00 set only in the APIM (Accessory Protocol Interface Module)?








5. CHECK FOR CORRECT RCM (Restraints Control Module) OPERATION

1. Disconnect and inspect all RCM (Restraints Control Module) connectors.

2. Repair:

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

3. Reconnect the RCM (Restraints Control Module) connectors. Make sure they seat and latch correctly.

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

Is the concern still present?








6. CHECK FOR CORRECT APIM (Accessory Protocol Interface Module) OPERATION

1. Disconnect and inspect the APIM (Accessory Protocol Interface Module) connector.

2. Repair:

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

3. Reconnect the APIM (Accessory Protocol Interface Module) connector. Make sure it seats and latches correctly.

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

Is the concern still present?