2010 Cadillac CTS Sedan AWD V6-3.6L Page 570

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2010 Cadillac CTS Sedan AWD V6-3.6L Page 570



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



Circuit/System Testing



1. Ignition OFF, disconnect the harness connector at the console passive antenna.



2. Place a valid keyless entry transmitter in the pocket located in the center console. This will allow the console active antenna to authenticate



the keyless entry transmitter and allow the ignition to be turned on.



3. Ignition ON, verify a test lamp does not illuminate between the signal circuit terminal A and ground.



瀚慖f the test lamp illuminates, test the signal circuit for a short to voltage. If the circuit tests normal, replace the RCDLR.



4. Connect a DMM, set to capture AC voltage using the MIN MAX function, between the signal circuit terminal A and the low reference circuit



terminal B.



5. Attempt to start the vehicle. Verify the DMM captured an AC voltage signal.



瀚慖f an AC voltage was not captured, test the signal circuit and the low reference circuit for a short to ground or an open/high resistance. If



the circuits test normal, replace the RCDLR.



6. If all circuits test normal, test or replace the console passive antenna.



Repair Instructions



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



* Ignition Lock Key Transmitter Antenna Replacement - Floor Console (Passive) (See: Accessories and Optional Equipment/Antitheft and



Alarm Systems/Keyless Entry/Antenna - Keyless Entry/Service and Repair/Ignition Lock Key Transmitter Antenna Replacement - Floor



Console (Passive))Ignition Lock Key Transmitter Antenna Replacement - Floor Console (Active) (See: Accessories and Optional



Equipment/Antitheft and Alarm Systems/Keyless Entry/Antenna - Keyless Entry/Service and Repair/Ignition Lock Key Transmitter Antenna



Replacement - Floor Console (Active))



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



B3130



DTC B3130 or B3135



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 B3130 00



- All Door Unlock Circuit



DTC B3135 00



- All Door Lock Circuit



Diagnostic Fault Information

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