[54A] CHASSIS ELECTRICAL - - COMBINATION METER ASSEMBLY AND VEHICLE SPEED SENSOR - SYMPTOM PROCEDURES - INSPECTION PROCEDURE 9: Fuel gauge does not work (the other meters work). <R.H. drive vehicles (Except for Hong Kong spec.)> | PRINT PAGE / INDEX / PRIOR / NEXT

INSPECTION PROCEDURE 9: Fuel gauge does not work (the other meters work). <R.H. drive vehicles (Except for Hong Kong spec.)>
TECHNICAL DESCRIPTION (COMMENT) If only the fuel gauge does not operate, the fuel pump and gauge unit, the combination meter, wiring harness or connector(s) may be defective.
TROUBLESHOOTING HINTS Malfunction of the fuel gauge unit. The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector. Malfunction of the combination meter.
| DIAGNOSIS PROCEDURE
| STEP 1. Check the fuel gauge circuit. Disconnect D-16 fuel pump and gauge unit (main) connector.
| Connect a test lamp (12 V - 3.4 W) via test harness (MB991219) between the wiring harness connector terminals 1 and 2. Turn the ignition switch to the "ON" position. Q: Does the test lamp illuminate? YES: Go to Step 8. NO: Go to Step 2.
| STEP 2. Connector check: Combination meter connector C-04, fuel pump and gauge unit (main) connector D-16. Q: Is combination meter connector C-04, fuel pump and gauge unit (main) connector D-16 in good condition? YES: Go to Step 3. NO: Repair or replace the damaged component(s).
| STEP 3. Check the wiring harness between combination meter connector C-04 (terminal 43) and fuel pump and gauge unit (main) connector D-16 (terminal 2). NOTE: Prior to the wiring harness inspection, check fuel gauge unit (sub) connector D-12, intermediate connector C-117, D-24, and repair if necessary. Q: Is the wiring harness between combination meter connector C-04 (terminal 43) and fuel pump and gauge unit (main) connector D-16 (terminal 2) in good condition? YES: Go to Step 4. NO: Repair or replace the damaged component(s). Then go to Step 4.
| STEP 4. Retest the system. Q: Is the fuel gauge normal? YES: The procedure is complete. (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to GROUP 00, How to Use Troubleshooting/Inspection Service Points-How to Cope with Intermittent Malfunction ). NO: Go to Step 5.
| STEP 5. Connector check: Fuel pump and gauge unit (main) connector D-16. Q: Is fuel pump and gauge unit (main) connector D-16 in good condition? YES: Go to Step 6. NO: Repair or replace the damaged component(s).
| STEP 6. Check the wiring harness between fuel pump and gauge unit connector D-16 (terminal 1) and earth. NOTE: Prior to the wiring harness inspection, check intermediate connectors D-24, and repair if necessary. Q: Is the wiring harness between fuel pump and gauge unit connector D-16 (terminal 1) and earth in good condition? YES: Go to Step 7. NO: Repair or replace the damaged component(s).
| STEP 7. Retest the system. Q: Is the fuel gauge normal? YES: The procedure is complete. (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to GROUP 00, How to Use Troubleshooting/Inspection Service Points-How to Cope with Intermittent Malfunction ). NO: Carry out the troubleshooting again.
| STEP 8. Check the fuel gauge circuit. Disconnect D-16 fuel pump and gauge unit (main) connector.
| Connect a test lamp (12 V - 3.4 W) via special tool test harness (MB991219) between the wiring harness connector terminals 1 and 2. Turn the ignition switch to the "ON" position. Q: Does the fuel gauge in the combination meter fluctuate about half of it full scale? YES: Replace the fuel gauge unit. NO: Go to Step 9.
| STEP 9. Retest the system. Q: Is the fuel gauge normal? YES: The procedure is complete. (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to GROUP 00, How to Use Troubleshooting/Inspection Service Points-How to Cope with Intermittent Malfunction ). NO: Replace combination meter.

[54A] CHASSIS ELECTRICAL - - COMBINATION METER ASSEMBLY AND VEHICLE SPEED SENSOR - SYMPTOM PROCEDURES - INSPECTION PROCEDURE 9: Fuel gauge does not work (the other meters work). <R.H. drive vehicles (Except for Hong Kong spec.)> | PRINT PAGE / INDEX / PRIOR / NEXT

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