Pinpoint Test P : Lost Communication
WARNING: This page is about a different variant/trim than selected.
- P1 CHECK THE COMMUNICATION NETWORK
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Carry out the network test.
Did the IPC pass the network test?
Yes GO to P2. No REFER to Module Communications Network to diagnose no communication with the IPC. - P2 CHECK THE TCM CMDTCs
- Enter the following diagnostic mode on the scan tool: Carry out the self-test and retrieve DTCs.
- Clear the DTCs.
- Wait 10 seconds.
- Repeat the self-test.
Is DTC U0155 present?
Yes GO to P3. 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. - P3 RETRIEVE THE RECORDED DTCs FROM THE TCM SELF-TEST
- Check for recorded DTCs from the TCM self-test.
Are DTCs P0702, P0882, P0883, P0884 or P1397 present?
Yes REFER to Charging System . No GO to P4. - P4 RETRIEVE THE RECORDED DTCs FROM THE IPC SELF-TEST
- Check for recorded DTCs from the IPC self-test.
Are DTCs U0303:16 or U0303:17 present?
Yes REFER to Instrumentation, Message Center, and Warning Chimes . No GO to P5. - P5 CHECK FOR DTC U0155 SET IN OTHER MODULES
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Carry out the self-test for all modules.
- Retrieve the CMDTCs from all modules.
Is DTC U0155 set in the APIM or in the RCM ?
Yes CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, discontinue this test and follow TSB instructions. If no TSBs address this concern, REFER to Instrumentation, Message Center, and Warning Chimes . No CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, discontinue this test and follow TSB instructions. If no TSBs address this concern, INSTALL a new TCM. REFER to Transmission Control Module (TCM) . PROGRAM the TCM with the latest calibration level. PERFORM the Solenoid Body Strategy Download procedure. REFER to Solenoid Body Strategy Download .