2010 Cadillac Truck SRX FWD V6-3.0L Page 1154

2010 Cadillac Truck SRX FWD V6-3.0L Page 1154

6. Install a 3 A fused jumper wire between TP sensor 1 signal circuit terminal D and the 5 V reference circuit terminal E. Verify the scan tool

TP sensor 1 voltage parameter is greater than 4.8 V.

瀚慖f less than the specified range, test the signal circuit for a short to ground, or an open/high resistance. If the circuit tests normal, replace

the K20 ECM.

7. If all circuits test normal, test or replace the Q38 throttle body assembly.

Repair Instructions

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

* Throttle Body Assembly Replacement (LF1) (See: Powertrain Management/Fuel Delivery and Air Induction/Throttle Body/Service and

Repair/Removal and Replacement)Throttle Body Assembly Replacement (LAU) (See: Powertrain Management/Fuel Delivery and Air

Induction/Throttle Body/Service and Repair/Removal and Replacement)

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

P124A

DTC P1248, P1249, P124A, P124B, P124C, or P124D (LF1)

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 P1248

- Cylinder 1 Injector High Control Circuit Shorted to Control Circuit

DTC P1249

- Cylinder 2 Injector High Control Circuit Shorted to Control Circuit

DTC P124A

- Cylinder 3 Injector High Control Circuit Shorted to Control Circuit

DTC P124B

- Cylinder 4 Injector High Control Circuit Shorted to Control Circuit

DTC P124C

- Cylinder 5 Injector High Control Circuit Shorted to Control Circuit

DTC P124D

- Cylinder 6 Injector High Control Circuit Shorted to Control Circuit

Diagnostic Fault Information