Pinpoint Test

1. Ignition ON.
2. Using a scan tool, retrieve the continuous memory DTCs  from all modules.

Is DTC B1317, B1676, P0563 (PCM) or U3003:17 set in more than one module? 

1. Yes: REFER to DIAGNOSTIC ROUTINE A : System Voltage High.
2. No: GO to 2  .

1. Turn off all interior/exterior lights and accessories.
2. Start and run the engine at approximately 2, 000 RPM for 3 minutes while monitoring the battery voltage.

Does the battery voltage rise to 15.5 volts or higher? 

1. Yes: REFER to DIAGNOSTIC ROUTINE A : System Voltage High.
2. No: GO to 3  .

1. Turn the engine off.
2. Ignition ON.
3. Using a scan tool, clear the continuous memory DTCs  .
4. Using a scan tool, perform the LTM self-test.

Is DTC B1317 present? 

1. Yes: GO to 4  .
2. No: The system is operating normally at this time. The DTC may have been set previously during battery charging or while jump starting the vehicle.

1. Ignition OFF.
2. Disconnect and inspect all LTM connectors.
3. Repair:
   • corrosion (install new connector or terminals - clean module pins)
   • damaged or bent pins - install new terminals/pins
   • pushed-out pins - install new pins as necessary
4. Reconnect all the LTM connectors. Make sure they seat and latch correctly.
5. Operate the system and determine if the concern is still present.

Is the concern still present? 

1. 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, INSTALL a new LTM. REFER to Liftgate/Trunk Module (LTM) .
2. No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.