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DTC (Gauge Control Module)
NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A - Refer to: Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A - Initial Communication and DTC Checks.
1. Problem verification.
Does the gauge move to the full position and the low fuel indicator blink?
YES
Go to step 2.
NO
Intermittent failure, the system is OK at this time. Check for loose or poor connections.
2. Fuel gauge operation check.
Fuel tank unit 4P connector
Does the gauge move to the empty position?
YES
Faulty the fuel gauge sending unit, replace the fuel tank unit - Refer to: Fuel Tank Unit Removal and Installation (2WD), or Fuel Tank Unit Removal and Installation (AWD).
NO
Go to step 3.
3. Shorted wire check (FUEL GAUGE+ line).
Gauge control module connector A (32P)
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Is there continuity?
YES
Repair a short to ground in the wire between the gauge control module and the fuel gauge sending unit.
NO
The FUEL GAUGE+ wire is OK. Replace the gauge control module.
DTC U0029 (Gauge Control Module) : F-CAN Communication Line Error
DTC U0100, U0122, U0128, U0131, U0151 (Gauge Control Module)
DTC U1280 (Gauge Control Module) Communication Bus Line Error (BUS-OFF)
Disassembly - CVT Transmission Disassembly and Reassembly (CVT)
General Information