O: Coolant Temp Display Is Not Accurate

O: Coolant Temp Display Is Not Accurate

Disconnect the Coolant Temperature Sender connector. Connect one red clip lead of the J-33431 tester to the harness connector DK GRN (35) wire, and the other red clip lead to ground. Adjust the resistance dials of the tester to 1600, 1060, 254, 135 and 75 ohms. The Display should indicate LO, 110, 180, 220 and 261 °F ±6 °F or LO, 43, 82, 104 and 127 °C ± 3 °C.

- If the Display indicates correctly, replace the Coolant Temperature Sender.
- If the Display does not indicate correctly, check DK GRN (35) wire for high resistance. If the (35) wire is good, replace the Instrument Cluster.