Pinpoint Test AQ: DTC U0100:00
- AQ1 VERIFY THE SCAN TOOL CAN COMMUNICATE WITH THE PCM
- Connect the scan tool.
- Check that a vehicle session can be established using the scan tool.
Can a vehicle session be established?
Yes GO to AQ2. No REFER to Module Communications Network to diagnose no communication with the PCM. - AQ2 CHECK THE IPC CONTINUOUS MEMORY DTCs
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: IPC Self-Test.
- Clear the DTCs.
- Wait 10 seconds.
- Repeat the IPC self-test.
Is DTC U0100:00 retrieved again?
Yes GO to AQ3. No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition. - AQ3 RETRIEVE THE RECORDED DTCs FROM THE PCM KOEO SELF-TEST
- Check for recorded DTCs from the PCM Key ON Engine OFF (KOEO) self-test.
Is DTC P0562 or P0563 recorded?
Yes REFER to Electronic Engine Controls . No GO to AQ4. - AQ4 RETRIEVE THE RECORDED DTCs FROM THE IPC SELF-TEST
- Check for recorded DTCs from the IPC self-test.
Is DTC U3003:16 or DTC U3003:17 recorded?
Yes For DTC U3003:16, GO to Pinpoint Test BC . For DTC U3003:17, GO to Pinpoint Test BD . No GO to AQ5. - AQ5 CHECK FOR DTC U0100:00 SET IN OTHER MODULES
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Self-Test.
- Retrieve the continuous memory DTCs from all modules.
Is DTC U0100:00 set in the ABS module or in the Restraints Control Module (RCM) ?
Yes INSTALL a new PCM. REFER to Electronic Engine Controls . CLEAR the DTCs. REPEAT the self-test. No Refer to IPC Hardware Testing . TEST the system for normal operation.