2010 Cadillac Truck SRX FWD V6-3.0L Page 211

2010 Cadillac Truck SRX FWD V6-3.0L Page 211

Scan Tool Reference

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

Circuit/System Verification

Ignition ON, A11 radio ON, tune to a strong AM or FM station. Verify that the AM or FM reception is clear.

Circuit/System Testing

1. Ignition OFF, disconnect the radio antenna coax from the A11 radio and from the radio antenna.

2. Test for infinite resistance between the antenna coax center terminal and ground.

瀚慖f less than the specified value, replace the antenna coax.

3. Test for less than 5 ohm on the antenna coax center circuit from end to end.

瀚慖f greater than the specified range, replace the antenna coax.

4. Ignition ON, test for less than 1 V between the antenna coax center terminal and ground.

瀚慖f greater than the specified range, replace the antenna coax.

5. Test for infinite resistance between the coax center terminal and the outer shield.

瀚慖f less than the specified value, replace the antenna coax.

6. Connect the antenna coax to the A11 radio. Test for 12-15 V between the antenna coax center terminal and ground at the radio antenna

connector.

瀚慖f not within the specified range, replace the A11 radio.

7. If all circuits test normal, replace the radio antenna.

Repair Instructions

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

* Radio Antenna Base Replacement (See: Accessories and Optional Equipment/Antenna/Antenna, Radio/Service and Repair/Radio Antenna

Base Replacement)

* Radio Antenna Replacement (See: Accessories and Optional Equipment/Antenna/Antenna, Radio/Service and Repair/Radio Antenna

Replacement)

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

B125C

DTC B125C

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 B125C 01

- Satellite Antenna 1 Circuit Short to Battery

DTC B125C 02

- Satellite Antenna 1 Circuit Short to Ground

DTC B125C 04

- Satellite Antenna 1 Circuit Open Circuit