Saturday, February 5, 2022

2010 Cadillac Truck SRX FWD V6-3.0L Page 1824

2010 Cadillac Truck SRX FWD V6-3.0L Page 1824



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 Verification



1. Ensure the transmission fluid temperature is between 50-80掳C (122-176掳F).



2. Operate the vehicle in 2nd gear long enough to ensure at least a 3掳C (5掳F) rise in transmission fluid temperature, then operate the vehicle in



Park for 5 s.



3. Observe the scan tool Clutch Pressure Control Solenoid Valve 1 Current parameter, the reading should be between 0.1-1.1 A.



Circuit/System Testing



Command the Clutch Pressure Control Solenoid Valve 1 with a scan tool. The value should change from 0.0-1.0 A.



If the value does not change, turn ignition OFF, remove the K71 Transmission Control Module. Connect a test lamp between the low reference



circuit terminal 10 X2 at the K71 Transmission Control Module and the voltage supply component circuit terminal 11 X2 at the K71 Transmission



Control Module. Command the Clutch Pressure Control Solenoid Valve 1 with a scan tool. The test lamp has to illuminate brighter with increasing



current.



If the test lamp always illuminate or always does not illuminate, replace the K71 Transmission Control Module.



Component Testing



Static Test



1. Ignition OFF, remove the K71 Transmission Control Module.



2. Test for 5-5.6 ohm at 20掳C (68掳F) between the low reference circuit terminal 10 X2 and the voltage supply circuit terminal 11 X2.



瀚慖f less than the specified range, test the wiring harness for internal short. If the circuit test normal, replace the Q27A Pressure Control



Solenoid Valve 1.



3. Test for infinite resistance between each terminal and the low reference circuit terminal 10 X2 and also to the voltage supply circuit terminal



11 X2.



瀚慖f less than the specified range, replace the wiring harness.



4. If all circuit test normal, perform the Control Solenoid Valve Inspection (M36 and MXE) (See: Transmission and Drivetrain/Automatic



Transmission/Transaxle/Testing and Inspection/Component Tests and General Diagnostics/AF40-6 - Automatic Transmission).



瀚慖f the inspection test normal, replace the control valve body.



Repair Instructions



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



* Control valve body replacement-Refer to Control Valve Body Replacement (See: Transmission and Drivetrain/Automatic



Transmission/Transaxle/Valve Body/Service and Repair/AF40-6 - Automatic Transmission/Control Valve Body Replacement) for



replacement, setup and programming.



* TCM-Refer to Control Module References (See: Testing and Inspection/Programming and Relearning) for replacement, setup and



programming.



* Perform the Transmission Adaptive Functions (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Description and



Operation/AF40-6 - Automatic Transmission/Transmission Adaptive Functions).



* Wiring harness-Refer to Automatic Transmission Wiring Harness Replacement (See: Transmission and Drivetrain/Automatic



Transmission/Transaxle/Wiring Harness/Service and Repair) for replacement.



6T70/6T75 - Automatic Transmission



DTC P0969-P0971



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.