• | Ensure that the fuel level is in the same range as the customer concern. |
• | For intermittent diagnosis, refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems. |
• | Refer to Fuel Level Specifications in order to verify the correct fuel level sender readings. The Fuel Level (%) parameter is available on the scan tool in the PCM EVAP data list. |
The number(s) below refer to the step number(s) in the diagnostic table.
Step | Action | Value(s) | Yes | No | ||||
---|---|---|---|---|---|---|---|---|
1 | Did you perform the Instrument Cluster Diagnostic System Check? | -- | Go to Step 2 | |||||
2 |
Does the fuel gauge display the correct fuel level? | -- | Go to Step 3 | Go to Step 4 | ||||
Inspect for the following items:
Did you find and correct the condition? | -- | Go to Step 11 | Go to Step 6 | |||||
4 | Test the signal circuit of the fuel level sender for a high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 11 | Go to Step 5 | ||||
5 | Test the ground circuit of the fuel level sender for a high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 11 | Go to Step 8 | ||||
6 |
Did you find and correct the condition? | -- | Go to Step 11 | Go to Step 7 | ||||
7 |
Does the resistance change smoothly across the specified range? | 40-250 ohms | Go to Diagnostic Aids | Go to Step 9 | ||||
8 | Inspect for poor connections at the harness connector of the instrument cluster. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 11 | Go to Step 10 | ||||
9 | Replace the fuel level sender. Refer to Fuel Level Sensor Replacement in Engine Controls - 3.8L. Did you complete the replacement? | -- | Go to Step 11 | -- | ||||
10 | Replace the instrument panel cluster. Refer to Instrument Cluster Lens Replacement . Did you complete the replacement? | -- | Go to Step 11 | -- | ||||
11 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2 |