2010 Cadillac Truck SRX AWD 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
