Diagnostic Routine AU

Diagnostic Routine AU

Diagnostic Overview

U0121:00

Normal Operation and Fault Conditions

IPC (Instrument Panel Cluster) 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 a network test.

3. Carry out the network test.

Does the ABS (Anti-Lock Brake System) module pass the network test?








3. RETRIEVE THE RECORDED DTCs (Diagnostic Trouble Codes) FROM THE ABS (Anti-Lock Brake System) MODULE SELF-TEST

1. Using a scan tool, perform the ABS (Anti-Lock Brake System) module self-test.

Is DTC (Diagnostic Trouble Code) U3003:16 or DTC (Diagnostic Trouble Code) U3003:17 recorded?








4. RETRIEVE THE RECORDED DTCs (Diagnostic Trouble Codes) FROM THE IPC (Instrument Panel Cluster) SELF-TEST

1. Using a scan tool, perform the IPC (Instrument Panel Cluster) self-test.

Is DTC (Diagnostic Trouble Code) U3003:16 or DTC (Diagnostic Trouble Code) U3003:17 recorded?








5. RECHECK THE IPC (Instrument Panel Cluster) DTCs (Diagnostic Trouble Codes)

1. Clear the DTCs (Diagnostic Trouble Codes).

2. Wait 10 seconds.

3. Repeat the IPC (Instrument Panel Cluster) self-test.

Is DTC (Diagnostic Trouble Code) U0121:00 still present?