Trip Computer-No Fuel Information

Trip computer-no fuel information

NOTE:
- Always check the connectors for poor connections or loose terminals.
- Before troubleshooting, get the navigation system anti-theft codes.
- After troubleshooting, enter the navigation system anti-theft codes.
- If the Previous button on the Trip Computer screen is not active, make sure to answer OK to the Disclaimer screen.
- Verify the correct navigation unit is installed for this model. Go into the Diagnostic mode and use "Version".

Do the "Navi System Link" diagnostic to check the communication line between the PCM (FI-ECU) and the navigation unit.

1. Go into the Diagnostic mode and use "Trip Information" diagnostic under Functional Setup with the engine running.

Are the values greater than zero?

YES - The system is OK.

NO - Check the CAN bus wires for an open or short to ground between navigation unit connector A (20P) terminals No.8 and No.18 and PCM connector B (56P) terminal No.6 and No.2. If OK, replace the navigation unit.