For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 |

1. Turn the headlamp switch to the PARK position and the dimmer switch to the OFF position on the headlamp and instrument panel (IP) lamp dimmer switch.
2. Use a test lamp in order to backprobe between the inoperable vacuum fluorescent (VF) display harness connector CKT 308 to ground.

Does the test lamp light?

--

Go to Step 2

Go to Step 3

2 | Use a test lamp in order to backprobe the inoperable VF display between CKT 308 and the following ground circuits:

• | CKT 1450

• | CKT 1550

• | CKT 351

Does the test lamp light?

--

Go to Step 5

Go to Step 4

3 |

1. Repair the following conditions in CKT 308 between S223 and the inoperable component.

• | A poor connection

• | An open

2. Inspect the system.

Is the symptom still present?

--

Go to Step 4

Go to Interior Lights Dimming System Check

4 |

1. Repair the following conditions in ground CKT 1450, CKT 1550 or CKT 351 between the inoperable VF display and G200, G201, G302 or G401.

• | A poor connection

• | An open

2. Inspect the system.

Is the symptom still present?

--

Go to Step 5

Go to Interior Lights Dimming System Check

5 |

1. Replace the bulbs in the component, as needed.
2. Replace the affected component, as needed.
3. Inspect the system.

Is the symptom still present?

--

--

Go to Interior Lights Dimming System Check