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Possible Causes

SINGLE MIRROR DOES NOT FUNCTION WITH SWITCH LOGIC PINPOINT TEST REFERENCE

PINPOINT TEST 3 A SINGLE MIRROR DOES NOT FUNCTION WITH SWITCH LOGIC
STEP INSPECTION ACTION
1 CHECK FOR THE CORRECT INPUT TO THE EXTERIOR REAR VIEW MIRROR
  • Key OFF.
  • Disconnect the Inoperative Exterior Rear View Mirror.
  • Select the inoperative exterior rear view mirror on the exterior mirror control switch.
  • Using the following table, measure the voltage between the suspect exterior rear view mirror connector, harness side and ground while operating the exterior mirror control switch to the specified position.
  • Are the voltages greater than 10 volts? 
 Yes CHECK the exterior mirror jumper harness for open or short circuits, and damaged or pushed out pins. If the jumper wire harness is OK, INSTALL a new exterior mirror motor. See EXTERIOR MIRROR MOTOR . TEST the system for normal operation. If the jumper wire harness is not OK, INSTALL a new exterior rear view mirror. See EXTERIOR MIRROR . TEST the system for normal operation.
No Go to next step.
2 CHECK THE EXTERIOR REAR VIEW MIRROR CIRCUITS FOR AN OPEN
  • Disconnect the Exterior Mirror Control Switch 0912-301.
  • Using the following table, measure the resistance between the suspect exterior rear view mirror connector, harness side and the exterior mirror control switch connector, harness side.
  • Are the resistances less than 5 ohms? 
 Yes INSTALL a new exterior mirror control switch. TEST the system for normal operation.
No REPAIR the circuit. TEST the system for normal operation.
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