Test 7B - Distance To Empty Problem

NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION  . For wiring diagram, see the appropriate WIRING DIAGRAMS article in the ENGINE PERFORMANCE section.

• WIRING DIAGRAMS - 2.5L TBI
• WIRING DIAGRAMS - 2.5L FLEXIBLE FUEL
• WIRING DIAGRAMS - 3.0L
  1. Check instrument cluster on vehicle. If electronic instrument cluster is used, go to TEST 9A. If mechanical (analog) instrument cluster is used, go to next step.
  2. Ensure fuel tank has more than 5 gallons of fuel. Turn ignition on. If fuel gauge does not read empty, go to TEST 7C. If fuel gauge reads empty, go to next step.
  3. Using scan tool, check voltage on fuse No. 8 connector (Dark Blue/White wire). See Fig 1 . Fuse block is located on left side of dash, above hood release handle. If voltage is more than 10 volts, go to step 6). If voltage is less than 10 volts, go to next step.
  4. Remove and inspect fuse No. 8. If fuse is open, go to TEST 7D. If fuse is okay, access ignition switch 7-pin connector. DO NOT  disconnect ignition switch 7-pin connector. Go to next step.
  5. Using scan tool in voltmeter mode, backprobe ignition switch 7-pin connector terminal No. 2 (Dark Blue wire). If voltage is more than 10 volts, repair open Dark Blue wire. If voltage is less than 10 volts, replace ignition switch.
  6. Disconnect fuel tank sending unit connector. See Figure . Access instrument cluster Black 11-pin connector. See Fig 1 . DO NOT  disconnect instrument cluster Black 11-pin connector. Using an external volt-meter, backprobe instrument cluster Black 11-pin connector terminal "J" (Dark Blue wire). If voltage is less than 7.5 volts, go to step 9). If voltage is more than 7.5 volts, go to next step.
  7. Connect a jumper wire between fuel tank sending unit connector terminals No. 1 (Black/Light Green wire) and No. 2 (Dark Blue wire). If fuel gauge reads full, replace fuel tank sending unit. If fuel gauge does not read full, go to next step.
  8. Remove jumper wire. Connect a jumper wire between fuel tank sending connector terminal No. 2 (Dark Blue wire) and ground. If fuel gauge reads full, repair open Black/Light Green wire. If fuel gauge does not read full, repair open Dark Blue wire.
  9. Turn ignition off. Disconnect instrument cluster Black 11-pin connector. Turn ignition on (engine off). Using scan tool in voltmeter mode, check voltage on instrument cluster Black 11-pin connector terminal "C" (Dark Blue/White wire). If voltage is more than 10 volts, replace fuel gauge. If voltage is less than 10 volts, repair open Dark Blue/White wire.

Fig 1: Locating Instrument Cluster Black/Red 11-Pin Connectors