Frequently Asked Question
Oil Temperature / Coolant Temperature always reads above 300 F (150 C)
Last Updated 2 years ago
Cause: The input to the EIS is shorted to ground.
Troubleshooting: Disconnect the wire from the sensor. If the problem goes away, it indicates a bad (shorted) sensor. If the problem persists, it indicates that the input (wire) connection to the EIS is shorted to ground.