FixVault
Home › Eagle › 1995 › Vision ESi › Repair and Diagnosis › Body & Frame › Body, Cab Control Systems › Body Control Computer › Testing › Test 67A - Fuel Gauge/Lamp Operation Full At All Times

Test 67A - Fuel Gauge/Lamp Operation Full At All Times

NOTE: Perform TEST 55A  or 58A before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION  . For wiring schematics, see WIRING DIAGRAMS  in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE  after each repair.
CAUTION: Always turn ignition off prior to disconnecting any module connector.
  1. Ensure fuel tank is not empty. Check if fuel gauge indicates empty continually. If fuel gauge does not indicate empty continually, go to next step. If fuel gauge indicates empty continually, go to TEST 68A  .
  2. If fuel gauge displays between empty and full, go to TEST 67B  . If gauge displays full continually, go to next step.
  3. Turn ignition on. Using scan tool, read fuel level sensor voltage. If voltage is more than 9 volts, replace fuel tank sending unit. If voltage is 9 volts or less, turn ignition off. Go to next step.
  4. Turn ignition off. Disconnect Body Control Module (BCM) Gray connector. BCM is located behind right kick panel. Using scan tool in ohmmeter mode, measure resistance at terminal No. 23 (Dark Blue wire) on BCM Gray connector. If resistance is 5 ohms or greater, replace BCM. If resistance is less than 5 ohms, go to next step.
  5. Determine if vehicle is flex fuel vehicle. If vehicle is flex fuel, go to next step. If vehicle is not flex fuel, repair short to ground in Dark Blue wire between fuel level sensor and BCM.
  6. Disconnect flex fuel module connector. Flex fuel module is located in trunk, behind rear seat. Using scan tool in ohmmeter mode, measure resistance at terminal No. 23 (Dark Blue wire) on BCM Gray connector. If resistance is 5 ohms or greater, repair short to ground in Dark Blue wire between fuel level sensor and BCM. If resistance is less than 5 ohms, go to next step.
  7. Using scan tool in ohmmeter mode, measure resistance at terminal No. 3 (Light Blue/Black wire) on flex fuel module connector. If resistance is less than 5 ohms, repair Light Blue/Black wire for short to ground. If resistance is 5 ohms or greater, go to next step.
  8. Using scan tool in ohmmeter mode, measure resistance at terminal No. 5 (Black/Tan wire) on flex fuel module connector. If resistance is less than 5 ohms, repair open Black/Tan wire. If resistance is 5 ohms or greater, go to next step.
  9. Turn ignition on. Using scan tool in voltmeter mode, measure voltage at terminal No. 6 (Red/White wire) on flex fuel module connector. If voltage is 10 volts or less, repair open Red/White wire. If voltage is greater than 10 volts, replace flex fuel module.
About FixVault