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Home >> Mazda >> 2013 >> 5 Grand Touring >> Repair and Diagnosis >> External Pages >> Different car >> Section 370 (On-Board Diagnostic (HVAC)) >> DTC 02 >> 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 02 DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1
  • Inspect solar radiation sensor.
  • Is it okay?
 Yes Go to next step.
No Replace solar radiation sensor.
2
  • Disconnect climate control unit connector (24-pin) and solar radiation sensor connector.
  • Is there continuity between the following climate control unit terminals and solar radiation sensor terminal?
    • 1S-B
    • 1I-A
 Yes Go to next step.
No Repair wiring harness.
3
  • Is there a short circuit to ground between climate control unit terminal 1S and solar radiation sensor terminal B?
 Yes Repair wiring harness.
No Replace climate control unit.
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