Diagnosis code 15, 16: Heater water temperature sensor system
COMMENTS ON TROUBLE SYMPTOM
This code is set when the heater water temperature sensor circuit is open (Code No.15) or is short (Code No.16).
POSSIBLE CAUSES
  • Malfunction of the heater water temperature sensor
  • Damaged the wiring harness or connectors
  • Malfunction of the automatic air conditioner control panel (A/C-ECU)
DIAGNOSIS
Step 1. Check the heater water temperature sensor.
Refer to
.
Q: Is the check result normal?
YES:  Go to Step 2.
NO:  Replace the heater water temperature sensor
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