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Home >> Mazda >> 2002 >> Tribute LX, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 372 (On-Board Diagnostic (HVAC)) >> DTC 22 >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2005 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
DTC 22 DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1
  • Inspect airflow mode actuator.
  • Is it okay?
 Yes Go to next step.
No Replace airflow mode actuator.
2
  • Disconnect climate control unit connector (24-pin).
  • Is there an open circuit between the following climate control unit terminals and airflow mode actuator terminals?
    • 2C-A
    • 1U-B
    • 1I-C
 Yes Repair wiring harness.
No Go to next step.
3
  • Is there a short circuit to ground between climate control unit terminal 1U and airflow mode actuator terminal B?
 Yes Repair wiring harness.
No This system is normal at present. (Erase the past failure from memory.)
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