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Home >> Mazda >> 2002 >> Tribute LX, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 372 (On-Board Diagnostic (HVAC)) >> DTC 12 >> 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 12 DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1
  • Is resistance between climate control unit terminals 1I and 1K as indicated below?

- 75 ohms-89 kilohms 		 Yes Replace climate control unit.
No Go to next step.
2
  • Inspect ambient temperature sensor.
  • Is it okay?
 Yes Repair wiring harness.
No Replace ambient temperature sensor.
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