Thursday, August 15, 2019

2019 Cadillac Truck Escalade AWD V8-6.2L Diagnostic Instructions Page 421


The heated mirror will be disabled.



Conditions for Clearing the DTC



* A current DTC will clear when the fault is no longer present.



* A history DTC will clear after 40 fault free ignition cycles.



Reference Information



Schematic Reference



Outside Rearview Mirror Schematics (See: Body and Frame/Mirrors/Diagrams/Electrical Diagrams/Outside Rearview Mirror Schematics)



Connector End View Reference



Component Connector End Views (See: Diagrams/Connector Views)



Description and Operation



Outside Mirror Description and Operation (Heated Mirrors) (See: Body and Frame/Mirrors/Description and Operation/Outside Mirror Description



and Operation (Heated Mirrors))Outside Mirror Description and Operation (Power Mirrors) (See: Body and Frame/Mirrors/Description and



Operation/Outside Mirror Description and Operation (Power Mirrors))



Electrical Information Reference



* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit



Testing/Circuit Testing)



* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic



Procedures/Connector Repairs/Connector Repairs)



* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General



Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)



* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring



Repairs/Wiring Repairs)



Scan Tool References



Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information.



Circuit/System Verification



Ignition ON, press the rear window defogger switch. The rear window defogger and both heated mirrors should become warm.



Circuit/System Testing



1. Ignition OFF, disconnect the X3 harness connector at the appropriate door module.



2. Ignition ON, verify a test lamp does not illuminate between the control circuit terminal 7 and ground.



锟斤拷 If the test lamp illuminates, test the control circuit for a short to voltage.



3. Ignition OFF, test for infinite resistance between the control circuit terminal 7 and ground.



锟斤拷 If less than the specified value, test the control circuit for a short to ground. If the circuit tests normal, test or replace the applicable



rearview mirror face.



4. Test for 5-10 ohms of resistance between the control circuit terminal 7 and the low reference circuit terminal 3.



锟斤拷 If not within the specified range, test the control circuit and the low reference circuit for an open/high resistance. If the circuits test normal,



test or replace the appropriate rearview mirror face.



5. If all circuits test normal, test or replace the door module.



Repair Instructions



Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.



* Outside Rearview Mirror Glass Replacement (See: Body and Frame/Mirrors/Service and Repair/Outside Rearview Mirror Glass



Replacement)



* Control Module References (See: Testing and Inspection/Programming and Relearning) for DDM or PDM replacement, setup and

No comments:

Post a Comment