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HOMESERVICE MANUALSMAZDA2008TRIBUTE S SPORT, 4WDREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMESUN ROOF/T-TOP/CONVERTIBLE TOPSYMPTOM TROUBLESHOOTING [WINDOWS/MIRRORS/ROOF/SEATS - EXCEPT HYBRID)PINPOINT TEST 7: THE DEFROST SYSTEM WILL NOT SHUT OFF AUTOMATICALLYDIAGNOSTIC PROCEDURE
2008 Mazda Tribute s Sport, 4WD

Diagnostic Procedure

2008 Mazda Tribute s Sport, 4WDSECTION Diagnostic Procedure
DIAGNOSTIC PROCEDURE CHART (PINPOINT TEST 7)

PINPOINT TEST 7 THE DEFROST SYSTEM WILL NOT SHUT OFF AUTOMATICALLY
STEP INSPECTION ACTION
1 CHECK THE REAR WINDOW DEFROST GRID WITH THE RELAY REMOVED
  • Key in OFF position.
  • Disconnect: Rear Window Defrost Relay.
  • Key in ON position.
  • Check the rear window defrost grid with the relay removed.
  • Is the rear window defrost still ON? 
 Yes REPAIR the short to voltage in circuit (BR/Y). CLEAR all DTCs. TEST the system for normal operation.
No GO to the next step.
2 CHECK THE REAR WINDOW DEFROST RELAY
 Yes GO to the next step.
No INSTALL a new rear window defrost relay. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
3 CHECK CIRCUIT (W/O) FOR A SHORT TO GROUND
  • Key in OFF position.
  • Disconnect: Manual Climate Control Module 0740-101.
  • Measure the resistance between the rear window defrost relay pin 2, circuit (W/O), harness side and ground.
  • Is the resistance greater than 10,000 ohms? 
 Yes GO to the next step.
No REPAIR the circuit. RUN the on-demand self-test (required to clear the DTCs). CORRECT any unresolved DTCs. CLEAR all DTCs. TEST the system for normal operation.
9 CHECK FOR CORRECT MANUAL CLIMATE CONTROL MODULE OPERATION
  • Disconnect all the manual climate control module connectors.
  • Check for:
    • corrosion
    • damaged pins
    • pushed-out pins
  • Connect all the manual climate control module connectors and make sure they seat correctly.
  • Operate the system and verify the concern is still present.
  • Is the concern still present? 
 Yes INSTALL a new manual climate control module. See CLIMATE CONTROL ASSEMBLY REMOVAL/INSTALLATION . TEST the system for normal operation.
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. RUN the on-demand self-test (required to clear the DTCs). CORRECT any unresolved DTCs. CLEAR all DTCs. TEST the system for normal operation.
RENDER: 1.0x

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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