The OBD code B1566 indicates a fault with the Door Ajar Switch circuit.
Symptoms include the Engine Light being ON.
This code affects the Body Control Module (BCM).
Common causes are a faulty Door Ajar Switch or its harness being open/shorted.
It’s not a serious issue but should be addressed.
To fix, inspect the wiring harness, connectors, and components for any damage or poor connections.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
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Symptoms of the b1566 OBD Code
The vehicle displays an airbag warning light on the dashboard with fault code B1566 stored.
- Symptoms: Service Engine Soon Warning Light ON.
- Possible loss of communication with the audio control module.
- Steering wheel controls may not function properly.
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Causes of the b1566 OBD Code
B1566 code typically indicates a fault in the steering angle sensor circuit.
- B1566 can be caused by a Faulty Door Ajar Switch.
- An open or shorted Door Ajar Switch harness.
- Poor electrical connection in the Door Ajar Switch circuit.
- A Faulty Body Control Module (BCM).
Fixing Error Code b1566 Step By Step
To address fault code B1566, inspect and repair the driver’s seat belt pretensioner circuit as needed.
- To fix OBDII code B1566, first, review the possible causes mentioned above and visually examine the corresponding wiring harness and connectors.
- Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- Next, check the power supply to the affected module and ensure it is within specifications.
- Test the module itself for proper operation and replace if necessary.
- Finally, clear the fault code using a scan tool and perform a road test to verify the repair.
Cost Of Fixing b1566 Fault Code
The repair for fault code B1566 may involve replacing the driver’s seat belt buckle switch.
The cost to diagnose and fix OBD code B1566 depends on the estimated 1. 0hour repair time.
Labor rates usually range from $75 to $150 per hour.
The total cost will vary based on shop rates, complexity of the issue, and any additional parts or services needed.
Details of the b1566 OBD Code
B1566 indicates an issue with the keyinignition warning circuit in the vehicle.
OBD code B1566 means Wiper Rear Motor Run Relay Circuit Short to Battery.
This code is triggered by the Body Control Module (BCM) when it detects a short to battery in the circuit for the rear wiper motor run relay.
The BCM monitors the circuit for any abnormalities, and when a short to battery is detected, it sets this diagnostic trouble code (DTC) B1566.
Mechanic’s Tech Notes
Code B1566 indicates an issue with the keyinignition warning circuit.
OBDII code B1566 indicates an issue with the climate control temperature sensor circuit.
To diagnose, use a multimeter to check the sensor’s resistance values.
Ensure the sensor is within specifications.
Next, inspect the wiring harness and connectors for any damage, corrosion, or poor connections.
Use a scan tool to monitor sensor data and verify proper readings.
If all checks out, consider replacing the climate control temperature sensor.
Remember to clear the code after repairs are made.
FAQ
OBD code B1566 indicates an issue with the door ajar switch circuit. Check for faulty switch, wiring, or BCM. Inspect wiring and connectors for damage or corrosion.
Common symptoms of OBD code B1566 include Engine Light ON, caused by a faulty Door Ajar Switch, harness issues, poor connections, or a faulty Body Control Module. Fix: Inspect and repair wiring/connectors.
Diagnose OBD code B1566 by checking for a faulty door ajar switch, open/shorted harness, poor connection, or faulty BCM. Inspect wiring and connectors for damage.
Wrap Up
If your airbag warning light is on and showing OBDII code b1566, it may indicate a fault in the right side crash sensor circuit.
This could be caused by a damaged sensor, faulty wiring, or poor connections in the system.
To address OBDII code b1566, check the wiring harness and connectors for any signs of damage or corrosion.
Test the right side crash sensor for proper operation and replace it if necessary to resolve the issue.
