[55B] AUTOMATIC AIR CONDITIONER - - TROUBLESHOOTING - DIAGNOSTIC TROUBLE CODE PROCEDURES - Diagnosis code 21, 22: Air thermo sensor system | PRINT PAGE / INDEX / PRIOR / NEXT

Diagnosis code 21, 22: Air thermo sensor system
| COMMENTS ON TROUBLE SYMPTOM This code is set when the air thermo sensor circuit is open (Code No.21) or is short (Code No.22).
| POSSIBLE CAUSES Malfunction of the air thermo sensor Damaged the wiring harness or connectors Malfunction of the automatic air conditioner control panel (A/C-ECU)
| DIAGNOSIS
| Step 1. Check the air thermo sensor Refer to . Q: Is the check result normal? YES: Go to Step 2. NO: Replace the air thermo sensor
| Step 2. Connector check: C-27 A/C-ECU connector and C-316 air thermo sensor connector Q: Is the check result normal? YES: Go to Step 3. NO: Repair the connector.
| Step 3. Check the wiring harness between C-27 A/C-ECU connector (terminals 8 and 20) and C-316 air thermo sensor connector (terminals 1 and 2). NOTE: Prior to the wiring harness inspection, check intermediate connector C-36 and heater water temperature sensor connector C-314, and repair if necessary. Check the input line for open or short circuit. Q: Is the check result normal? YES: Replace the automatic air conditioner control panel (A/C-ECU) NO: Repair the wiring harness.

[55B] AUTOMATIC AIR CONDITIONER - - TROUBLESHOOTING - DIAGNOSTIC TROUBLE CODE PROCEDURES - Diagnosis code 21, 22: Air thermo sensor system | PRINT PAGE / INDEX / PRIOR / NEXT

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