Wednesday, April 24, 2019

2019 Cadillac Truck Escalade AWD V8-6.2L Diagnostic Instructions Page 118


锟斤拷 If greater than the specified range, test the low reference circuit for open/high resistance. If the circuit tests normal, replace the PPS.



4. Ignition OFF, disconnect the harness connector at the PPS module.



5. Test for infinite resistance between the signal circuit terminal B and ground.



锟斤拷 If less than the specified value, test the signal circuit for a short to ground.



6. Ignition ON, test for less than 1 volt between the signal circuit terminal B and ground.



锟斤拷 If greater than the specified range, test the signal circuit for a short to voltage.



7. Test for less than 1 ohm between the PPS sensor signal circuit terminal B and the PPS module terminal 6.



锟斤拷 If greater than the specified range, test the signal circuit for open/high resistance. If the circuit tests normal, replace the PPS.



8. If all circuits test normal, replace the PPS which includes the pressure sensor.



Repair Instructions



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



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



Procedures/Wiring Repairs/SIR/SRS Wiring Repairs)



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



B0079



DTC B0079 or B0080



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 B0079 01



- Driver Seat Position Sensor Circuit Short to Battery



DTC B0079 02



- Driver Seat Position Sensor Circuit Short to Ground



DTC B0079 04



- Driver Seat Position Sensor Circuit Open



DTC B0079 05



- Driver Seat Position Sensor Circuit High Voltage or Open



DTC B0079 06



- Driver Seat Position Sensor Circuit Low Voltage or Open



DTC B0079 08



- Driver Seat Position Sensor Circuit Performance-Signal Invalid



DTC B0079 0C



- Driver Seat Position Sensor Circuit Low Current



DTC B0080 01



- Passenger Seat Position Sensor Circuit Short to Battery



DTC B0080 02



- Passenger Seat Position Sensor Circuit Short to Ground



DTC B0080 04



- Passenger Seat Position Sensor Circuit Open

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