|
|
COMBINATION METER CHASSIS ELECTRICAL 54A-67 DIAGNOSIS PROCEDURE Step 1. Connector check: Fuel tank pump and Q: Is fuel tank pump and gauge unit assembly connector C-02 in good condition? YES : Go to Step 2. NO : Repair the connector, and then go to Step Step 2. Check the fuel gauge circuit. (1) Disconnect fuel tank pump and gauge unit assembly connector D-15. (2) Use special tool MB991219 to connect a test lamp (12 V - 3.4 W) between the wiring harness connector terminals 1 and 2. (3) Turn the Ignition switch to "ON" position. OK: Illuminates Q: Is the check result satisfactory? YES : Go to Step 8. NO : Go to Step 3. Step 3. Resistance measurement at fuel tank (1) Disconnect fuel tank pump and gauge unit assembly connector D-15, and measure at the (2) Turn the Ignition switch to "LOCK" (OFF) position. (3) Disconnect the negative battery terminal. (4) Measure the resistance value between terminal 1 and earth. OK: 2 ohms or less Q: Is the check result normal? YES : Go to Step 5. NO : Go to Step 4. AC310207 AG Connector: D-15 D-15 (GR) Harness side AC310207 AG Connector: D-15 D-15 (GR) Harness side AC302533 MB991219 AB Test lamp AC310207 AG Connector: D-15 D-15 (GR) Harness side AC310506 Connector D-15 CM |