2010 Cadillac CTS Sedan AWD V6-3.6L Page 577
3. Test for infinite resistance between the following terminals:
* 30 and 86
* 30 and 87
* 30 and 85
* 85 and 87
瀚慖f not the specified value, replace the relay.
4. Install a 25A fused jumper wire between relay terminal 85 and 12 volts. Install a jumper wire between relay terminal 86 and ground. Test for
less than 2 ohms between terminals 30 and 87.
瀚慖f greater than the specified range, replace the relay.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Relay Replacement (Attached to Wire Harness) (See: Power and Ground Distribution/Power Distribution Relay/Service and Repair/Relay
Replacement (Attached to Wire Harness))Relay Replacement (Within an Electrical Center) (See: Power and Ground Distribution/Power
Distribution Relay/Service and Repair/Relay Replacement (Within an Electrical Center))
* Control Module References (See: Testing and Inspection/Programming and Relearning) for BCM replacement, setup, and programming
B3410
DTC B3410 or B3420
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 B3410 01
- AHLD Front Axle Sensor Signal Circuit Short to Battery
DTC B3410 02
- AHLD Front Axle Sensor Signal Circuit Short to Ground
DTC B3410 03
- AHLD Front Axle Sensor Signal Circuit Voltage Below Threshold
DTC B3410 07
- AHLD Front Axle Sensor Signal Circuit Voltage Above Threshold
DTC B3420 01
- AHLD Rear Axle Sensor Signal Circuit Short to Battery
DTC B3420 02
- AHLD Rear Axle Sensor Signal Circuit Short to Ground
DTC B3420 03
- AHLD Rear Axle Sensor Signal Circuit Voltage Below Threshold
DTC B3420 07
- AHLD Rear Axle Sensor Signal Circuit Voltage Above Threshold
Diagnostic Fault Information
