For 1990-2009 cars

Step | Action | Value | Yes | No
--- | --- | --- | --- | ---
1 | Did you perform the Instrument Cluster Diagnostic System Check? | -- | Go to Step 2 | Go to Instrument Cluster System Check
2 |

1. Disconnect the ECT sensor connector.
2. Use a J 35616-A , and connect a RED lead of the J 33431-C to connector cavity 2 of the ECT.Connect the other lead to ground.
3. Turn the ignition switch to the ON position.
4. Set the resistance dial of the tester to the following settings:

• | 136ohms

• | 52ohms

• | 10ohms

Does the ECT gauge indicate C at 136ohms, between the C and the H at 52ohms, and H at 10ohms?

-

Go to Step 3

Go to Step 4

3 | Replace the sensor. Is the repair complete? | - | Go to Instrument Cluster System Check | -
4 |

1. Disconnect the J 33431-C .
2. Disconnect the IP cluster assembly connector C1.
3. Connect a J 39200 from connector C1 terminal 6 of the instrument panel cluster to connector cavity 2 of the ECT sensor.
4. Measure the resistance.

Is the measured resistance less than the specified values?

5ohms

Go to Step 5

Go to Step 7

5 | Inspect for high resistance in the printed circuit of the instrument panel cluster. Is the circuit OK? | - | Go to Step 6 | Go to Step 8
6 | Replace the ECT gauge. Is the repair complete? | - | Go to Instrument Cluster System Check | -
7 | Repair the YEL/WHT wire between the instrument panel cluster and the ECT sensor. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | - | Go to Instrument Cluster System Check | -
8 | Replace the instrument cluster printed circuit. Refer to Printed Instrument Cluster Circuit Replacement in Instrument Panel Gauges, and Console. Is the repair complete? | - | Go to Instrument Cluster System Check | -