The OBD code B1660 for Lexus indicates an issue with the Passenger Airbag ON/OFF Indicator Light circuit.
Symptoms include the Air Bag Warning Light being ON.
Causes may include a faulty indicator light, wiring harness issues, or problems with the Center Airbag Sensor Assembly.
This is a serious issue as it affects airbag functionality.
To fix, inspect and repair any damaged components or wiring connections related to the indicator light circuit.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
Symptoms of the Lexus b1660 OBD Code
The Lexus B1660 fault code typically triggers when there is an issue with the occupant classification system.
- Symptoms: Air Bag Warning Light ON
Causes of the Lexus b1660 OBD Code
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Possible triggers for Lexus B1660 include faulty keyless entry receiver, wiring issues, or damaged key fob.
- B1660 can be caused by a faulty Passenger Airbag ON / OFF Indicator Light.
- A Passenger Airbag ON / OFF Indicator Light harness that is open or shorted.
- A Passenger Airbag ON / OFF Indicator Light circuit with poor electrical connection.
- A faulty Center Airbag Sensor Assembly.
Fixing Lexus Error Code b1660 Step By Step
To address fault code B1660 on a Lexus, inspect and repair the driver’s side airbag sensor circuit.
- To fix the Lexus OBDII code B1660, start by reviewing the possible causes mentioned above.
- Visually examine the wiring harness and connectors related to the airbag sensor system.
- Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- If no visible issues are found, perform a diagnostic scan tool test to further pinpoint the problem.
- Depending on the scan results, you may need to replace the faulty airbag sensor module or reprogram it if supported by the manufacturer.
Cost Of Fixing Lexus b1660 Fault Code
The repair for Lexus fault code B1660 may involve replacing the Occupant Classification System module.
The cost to diagnose and fix a Lexus OBD code B1660 typically ranges from $75 to $150, based on an estimated repair time of 1. 0 hour.
Factors like shop rates and complexity of the repair can influence the final cost.
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Details of the Lexus b1660 OBD Code
Lexus B1660 indicates a malfunction in the occupant classification system in the passenger seat.
Lexus OBD code B1660 indicates a fault with the smart key ECU communication circuit.
This code is triggered by the smart key ECU when it detects a communication issue within the system.
The smart key ECU communicates with the vehicle’s immobilizer system to allow the engine to start when a valid key fob is detected.
If there is a problem with the communication circuit, the smart key system may not function properly, leading to starting issues or other related problems.
Mechanic’s Tech Notes
For Lexus B1660, this section provides detailed information on diagnosis, causes, and repair procedures.
To diagnose OBDII code B1660 in a Lexus, start by visually inspecting the wiring harness and connectors related to the Transmission Control Module (TCM).
Look for any damage or corrosion on the connector pins.
Use a multimeter to check TCM power and ground connections for proper voltage levels.
Additionally, use a scan tool to confirm if the TCM communicates over the Controller Area Network (CAN) network.
If necessary, consider reprogramming or reflashing the TCM.
This process can help identify and address issues related to the TCM, potentially resolving the B1660 fault code.
FAQ
OBD code B1660 in a Lexus indicates an issue with the Passenger Airbag ON/OFF Indicator Light circuit. Check wiring, connectors, and components for faults.
Common symptoms of Lexus OBD code B1660 include Air Bag Warning Light ON. Causes may be a faulty Passenger Airbag ON/OFF Indicator Light or related wiring issues. Fix: Inspect and repair wiring and connectors.
Diagnose OBD code B1660 in Lexus: Symptoms Air Bag Warning Light ON. Causes Faulty Passenger Airbag ON/OFF Indicator Light. Fix Inspect wiring harness and connectors for damage.
Wrap Up
If your Lexus is displaying OBD code B1660 and your power sliding door is malfunctioning, it could be caused by a faulty power sliding door control module, damaged wiring harness, or poor electrical connection.
To address Lexus OBD code B1660, check the power sliding door control module for any signs of damage, inspect the wiring harness for any wear or breaks, and ensure all electrical connections are secure and free of corrosion.
Consider replacing the power sliding door control module if necessary.
