2010 Cadillac CTS Sedan AWD V6-3.0L Page 1753
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
Circuit/System Description
The engine control module (ECM) supplies voltage to each fuel injector on the injector high voltage supply circuits. The ECM energizes each fuel
injector by grounding the high voltage control circuit of the fuel injector. The ECM monitors the status of the injector high voltage supply circuits
and the fuel injector high voltage control circuits. When a fuel injector circuit condition is detected by the ECM, the affected fuel injector(s) is
disabled.
Conditions for Running the DTC
* The engine is running.
* The ignition voltage is between 11-18 V.
* The DTCs run continuously when the above conditions are met.
Conditions for Setting the DTC
P1248, P1249, P124A, P124B, P124C, or P124D
The ECM detects the injector high voltage supply circuit is shorted to the injector high voltage control circuit for greater than 2 s.
Action Taken When the DTC Sets
