Checking the wires and connectors
Check the fuel gauge sensor resistance (right side). The resistance across the respective sensor may vary between 12 ohm (full tank) and 383 ohm (empty tank).
HINT: The resistance of the fuel gauge sensor (right side) can be measured between fuel gauge sensor connectors 7 and 6. The resistance of the left fuel gauge sensor can be measured between fuel gauge sensor connectors 5 and 6.
Check the wires between fuel gauge sensor connector 7 and control unit A08 (A8) for a short circuit to ground as described in Short-circuit to ground, permanent faults , and for an open circuit as described in Open-circuit, permanent faults .
Check ground wire between control unit A10 (A10) and fuel gauge sensor connector 6 for an open circuit as described in Open-circuit, permanent faults .
Check wire between left and right fuel gauge sensor for an open circuit as described in Open-circuit, permanent faults .
Do the necessary corrective action.
Additional information:
- For information on signals and additional values:
- For -2003, see Signal specification
- For 2004, see Signal specification
- To connect the test box, see Connecting the breakout box
- To access the control unit, see Integrated relay/fusebox cargo compartment/Rear electronic module (REM), replacing
- To access the fuel gauge sensors, see Left fuel gauge sensor and Right side fuel pump with level sensor .
- Continue
Refer to Verification