XK-8 Convertible (X100) V8-4.0L (AJ26) (1997)
Coolant Temperature Sensor/Switch (For Computer): Pinpoint Tests
Pinpoint Test A
Pinpoint test A: P0116, P0125, P0116, P0125
A1: RETRIEVE DTCS
NOTE: Battery and/or ECM disconnection prior to scanning will erase all data, ensure that the correct DTC is present.
Connect scan tool
Record DTC(s), freeze frame data &
GO to [A2]
A2: ENGINE COOLANT SYSTEM CHECK
NOTE: Do not use the instrument display. If the ECT has failed this will not operate correctly.
Check engine temperature rise using a thermocouple or similar device.
-
Engine temperature increasing?
-> Yes
GO to [A3]
-> No
Check coolant level
Check coolant for contamination
Check/test thermostat
A3: CHECK ECT SENSOR RANGE