Engine Coolant Temperature Signal Inspection

COMBINATION METERS


Engine Coolant Temperature Signal Inspection

Symptom: Water temperature gauge indication is malfunction.
1.CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Start the engine and select "METER/M&A" on CONSULT-III.
2. Using "W TEMP METER" on "Data Monitor", compare the value of "Data Monitor" to the indication of water temperature gauge of combination meter.





Is the indication of water temperature gauge same as the value in the monitor?
OK - GO TO 2.
NG - Replace combination meter. [Perform self-diagnosis of ECM when the value in the monitor indicates 215�C (419�F). Then repair or replace the malfunction part.]
2.CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Select "ENGINE" on CONSULT-III.
2. Using "COOLANT TEMP/S" on "Data Monitor", check the CONSULT-III screen.
3. Select "METER/M&A" on CONSULT-III.
4. Using "W TEMP METER" on "Data Monitor", compare the value of "Data Monitor" to that of the "COOLANT
TEMP/S".
OK or NG
OK - Perform self-diagnosis of ECM. Refer to (for VQ35HR) or Consult-III Function (for VK45DE).
NG - Replace unified meter and A/C amp.