Thursday, April 4, 2019

2019 Cadillac Truck Escalade AWD V8-6.2L Diagnostic Instructions Page 614


Circuit/System Testing



1. Ignition OFF, disconnect the harness connector at the tilt switch.



2. Ignition ON, verify a test lamp illuminates between the B+ circuit terminal B and ground.



锟斤拷 If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.



3. Verify the scan tool tilt switch parameter is Inactive.



锟斤拷 If not the specified value, test the control circuit listed below for a short to voltage. If the circuit tests normal, replace the MSM.



* Tilt Up Switch terminal C



* Tilt Down Switch terminal A



4. Install a 3A fused jumper wire between the control circuits listed below and the B+ circuit terminal. Verify the scan tool tilt switch parameter



is Active.



* Tilt Up Switch terminal C



* Tilt Down Switch terminal A



锟斤拷 If not the specified value, test the appropriate control circuit for a short to ground or an open/high resistance. If the circuit tests normal,



replace the MSM.



5. If all circuit test normal, test or replace the tilt switch.



Component Testing



Tilt Switch



1. Ignition OFF, disconnect the harness connector at the tilt switch.



2. Test for infinite resistance between the control terminals A and C with the switch in the neutral position.



锟斤拷 If less than the specified range, replace the tilt switch.



3. Test for less than 1 ohm between the control terminals listed below and the B+ terminal B with the switch in each appropriate position.



* Tilt Up Switch terminal C



* Tilt Down Switch terminal A



锟斤拷 If greater than the specified value, replace the tilt switch.



Repair Instructions



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



* Steering Column Tilt Wheel Switch Replacement (See: Sensors and Switches/Sensors and Switches - Steering and Suspension/Sensors and



Switches - Steering/Tilt Wheel Switch/Service and Repair)



* Control Module References (See: Testing and Inspection/Programming and Relearning) for MSM replacement, setup, and programming



B2860



DTC B2860 or B2880



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.



DTC Descriptors



DTC B2880 01



- Tilt Position Sensor Circuit Short to Battery



DTC B2880 06



- Tilt Position Sensor Circuit Short to Ground or Open

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