2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 751
* Lumbar horizontal motor terminal 13
* Seat recline motor terminal 15
* Seat recline motor terminal 16
* Adjustable pedal actuator terminal 9
* Adjustable pedal actuator terminal 10
瀚慖f the test lamp illuminates, test the control circuit for a short to voltage.
6. Test for infinite resistance between the control circuits listed below and ground:
* Lumbar horizontal motor terminal 12
* Lumbar horizontal motor terminal 13
* Seat recline motor terminal 15
* Seat recline motor terminal 16
* Adjustable pedal actuator terminal 9
* Adjustable pedal actuator terminal 10
瀚慖f not the specified value, test the control circuit for a short to ground.
7. If all circuits test normal, replace the MSM.
B3921 01 or B3921 02
1. Ignition OFF, disconnect the X4 harness connector at the MSM.
2. Ignition ON, verify that a test lamp does not illuminate between the control circuits listed below and ground:
* Lumbar vertical motor terminal 1
* Lumbar vertical motor terminal 2
* Steering wheel tilt actuator terminal 7
* Steering wheel tilt actuator terminal 8
瀚慖f the test lamp illuminates, test the control circuit for a short to voltage.
3. Test for infinite resistance between the control circuits listed below and ground:
* Lumbar vertical motor terminal 1
* Lumbar vertical motor terminal 2
* Steering wheel tilt actuator terminal 7
* Steering wheel tilt actuator terminal 8
瀚慖f not the specified value, test the control circuit for a short to ground.
4. If all circuits test normal, replace the MSM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Front Seat Adjuster Replacement (with HP2) ()Front Seat Adjuster Replacement (without HP2) ()
* Front Seat Recliner Actuator Motor Replacement ()
* Seat Lumbar Sub System Replacement ()
* Brake Pedal Assembly Replacement (See: Accessories and Optional Equipment/Pedal Positioning System/Service and Repair/Removal and
Replacement/Brake Pedal Assembly Replacement)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for the MSM replacement, programming and setup
B3921
DTC B3920 or B3921
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
Mercedes Benz Diagnostic and Repair Information ,Wiring Diagrams. DTC. TSB. Types: TSB, DTC, Wiring Diagrams, OEM Procedures. Trusted by more than 400,000 technicians. OEM accurate fix for faster repairs. Repair Procedures and Labor Times. Factory Auto Repair info. Request A Demo Today. Factory-Correct Diagrams. Factory Part Numbers. Maintenance Schedules. Repair Procedures. Labor Times. Types: TSB, DTC.Mercedes,Mercedes,Benz,Mercedes-Benz UK,A,Class,B,Class,C,Class,E,Class,CLA,CLS,G,Class,GLA,A
Sunday, December 8, 2019
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 751
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