P0217-DECREASED ENGINE PERFORMANCE DUE TO ENGINE OVERHEAT CONDITION

POSSIBLE CAUSES

• ECT SENSOR
• OTHER DTC'S
• MECHANICAL FAILURE

DIAGNOSTIC PROCEDURE

NOTE: Refer to VERIFICATION TESTS for appropriate verification test procedures.

1. With the DRBIII®, read DTCs. Are other Cooling system DTCs present?
   Yes --> Trouble shoot the other DTCs first
   No --> Go To 2
2. Allow the engine to reach normal operating temperature. Use a temperature probe and measure the engine temperature near the ECT Sensor. With the DRBIII®, read the Engine Temperature. Compare the temperature probe reading with the DRBIII® reading. Are the readings within 10°F of each other?
   Yes --> Repair the cause of mechanical failure
   No --> Replace the coolant temp sensor.