For 1990-2009 cars

Step | Action | Value(s) | 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 in order to connect one RED lead of a J 33431-C to the ECT sensor connector cavity 2 and 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 a C (136ohms), midpoint between the C and the H (52ohms) and H (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 I/P cluster assembly connector C1.
3. Connect a J 39200 DMM from the IP cluster assembly connector C1 terminal 6 to ECT sensor connector cavity 2.
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 IP cluster printed circuit. 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 open in the YEL/WHT wire between the IP cluster assembly 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 | --