Saturday, October 31, 2020

2010 Cadillac CTS Sedan AWD V6-3.0L Page 1953

2010 Cadillac CTS Sedan AWD V6-3.0L Page 1953



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



replace the K20 ECM.



瀚慖f greater than the specified range, test the circuit for a short to voltage. If the circuit/connection tests normal, replace the K20 ECM.



4. Connect a test lamp between the each of the ground circuits terminal A, and terminal B, and B+. The test lamp should illuminate on each



circuit.



瀚慖f the test lamp does not illuminate, test the suspected circuit for an open/high resistance.



5. If all circuits/connections test normal, replace the T8 ignition coil.



Repair Instructions



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



* Ignition Coil Replacement - Bank 1 (See: Powertrain Management/Ignition System/Ignition Coil/Service and Repair/Ignition Coil



Replacement - Bank 1)



* Ignition Coil Replacement - Bank 2 (See: Powertrain Management/Ignition System/Ignition Coil/Service and Repair/Ignition Coil



Replacement - Bank 2)



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



P2306



DTC P0351-P0356, P2300, P2301, P2303, P2304, P2306, P2307, P2309, P2310, P2312, P2313, P2315, or P2316 (w/LLT)



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 P0351



- Ignition Coil 1 Control Circuit



DTC P0352



- Ignition Coil 2 Control Circuit



DTC P0353



- Ignition Coil 3 Control Circuit



DTC P0354



- Ignition Coil 4 Control Circuit



DTC P0355



- Ignition Coil 5 Control Circuit



DTC P0356



- Ignition Coil 6 Control Circuit



DTC P2300



- Ignition Coil 1 Control Circuit Low Voltage



DTC P2301



- Ignition Coil 1 Control Circuit High Voltage



DTC P2303



- Ignition Coil 2 Control Circuit Low Voltage



DTC P2304



- Ignition Coil 2 Control Circuit High Voltage



DTC P2306



- Ignition Coil 3 Control Circuit Low Voltage