Sunday, February 20, 2022

2010 Cadillac Truck SRX FWD V6-3.0L Page 948

2010 Cadillac Truck SRX FWD V6-3.0L Page 948



Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code



(DTC) Type Definitions)



Scan Tool Reference



Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information



Circuit/System Testing



1. Ignition OFF, disconnect harness connector of the B47 fuel pressure sensor.



2. Ignition OFF, test for less than 1.0 ohm between the low reference circuit terminal 2 and ground.



瀚慖f greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the K27



fuel pump control module.



3. Ignition ON, test for 4.8-5.2 V between the 5 V reference circuit terminal 3 and ground.



瀚慖f less than the specified range, test the 5 V reference circuit for a short to ground or an open/high resistance. If the circuit tests normal,



replace the K27 fuel pump control module.



瀚慖f greater than the specified range, test the 5 V reference circuit for a short to voltage. If the circuit tests normal, replace the K27 fuel



pump control module.



4. If all circuits test normal, replace the B47 fuel pressure sensor.



Repair Instructions



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



* Fuel Pressure Sensor Replacement - Fuel Feed Pipe (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel Pressure



Sensor/Switch/Service and Repair/Fuel Pressure Sensor Replacement - Fuel Feed Pipe)



* Control Module References (See: Testing and Inspection/Programming and Relearning) for fuel pump control module replacement, setup,



and programming



P06B6



DTC P0324-P0328, P0330-P0333, P06B6, or P06B7 (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 P0324



- Knock Sensor System Performance



DTC P0325



- Knock Sensor Circuit Bank 1



DTC P0326



- Knock Sensor Performance Bank 1



DTC P0327



- Knock Sensor Circuit Low Voltage Bank 1



DTC P0328



- Knock Sensor Circuit High Voltage Bank 1



DTC P0330



- Knock Sensor Circuit Bank 2



DTC P0331



- Knock Sensor Performance Bank 2

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