The OBD code B1668 for Chrysler indicates an issue with the reverse lamp bulb circuit.
Symptoms include the Engine Light being ON.
This code is commonly caused by a faulty reverse lamp bulb, open/shorted bulb harness, poor electrical connection, or a faulty Totally Integrated Power Module (TIPM).
It is not a serious issue and can be fixed by visually inspecting and repairing the wiring harness and connectors related to the reverse lamp 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 Chrysler b1668 OBD Code
The vehicle displays an illuminated airbag warning light on the dashboard.
- Symptoms: Service Engine Soon Warning Light may illuminate.
- Issues with the vehicle’s security system may arise.
- The vehicle may not start.
- The engine may start and then immediately shut off.
- The key may not turn in the ignition.
Causes of the Chrysler b1668 OBD Code
Possible triggers for Chrysler fault code B1668 include issues with the occupant classification system.
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- B1668 can be caused by a Faulty Reverse Lamp Bulb.
- A Reverse Lamp Bulb harness that is open or shorted.
- A Reverse Lamp Bulb circuit with a poor electrical connection.
- A Faulty Totally Integrated Power Module (TIPM).
Fixing Chrysler Error Code b1668 Step By Step
Address the issue by inspecting the ignition switch and related wiring for faults or damage.
- To fix Chrysler OBDII code B1668, start by reviewing the possible causes mentioned above.
- Visually examine the wiring harness and connectors related to the code.
- Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- If no issues are found with the wiring and connectors, proceed to test the specific component or system related to the code.
- Replace the faulty component if necessary.
- Clear the fault code from the vehicle’s computer using a scan tool.
- Test drive the vehicle to ensure the code does not return.
Cost Of Fixing Chrysler b1668 Fault Code
The repair for Chrysler fault code B1668 may involve replacing the occupant classification module.
The cost to diagnose and fix Chrysler OBD code B1668 depends on the estimated 1. 0hour repair time.
Labor rates usually range from $75 to $150 per hour, so the total cost could be between $75 and $150, depending on shop rates and the complexity of the repair.
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Details of the Chrysler b1668 OBD Code
Chrysler fault code B1668 relates to a problem with the lamp driver circuit.
Chrysler OBD code B1668 indicates a problem with the left rear power window switch circuit.
This code is triggered by the Body Control Module (BCM) when it detects a fault in the circuit related to the left rear power window switch.
The BCM monitors the signals from the power window switch to control the operation of the left rear power window.
If there is a malfunction in the switch or its circuit, the BCM will set code B1668 to indicate the issue.
Mechanic’s Tech Notes
For Chrysler code B1668, check for a fault in the driver’s door ajar switch circuit.
OBDII code B1668 in a Chrysler may indicate a communication issue with the Transmission Control Module (TCM).
To diagnose, check TCM power and ground using a multimeter.
Verify TCM response over the Controller Area Network (CAN) network with a scan tool.
Visually inspect wiring harness and connectors for damage, and check connector pins for issues like being broken, bent, pushed out, or corroded.
If no visible problems are found, consider reprogramming or reflashing the TCM.
This process can help resolve communication faults and restore proper TCM operation.
FAQ
OBD code B1668 in a Chrysler indicates an issue with the reverse lamp circuit. Check the reverse lamp bulb, harness, and TIPM for faults. Inspect wiring and connectors for damage.
Diagnose a B1668 fault code in a Chrysler by checking reverse lamp bulb, harness, and TIPM. Inspect wiring, connectors, and components for damage or corrosion.
Common symptoms of a B1668 fault code in a Chrysler vehicle include Engine Light ON, caused by issues like faulty reverse lamp bulb or poor electrical connections. Fix involves inspecting wiring and connectors.
Wrap Up
If your Chrysler is displaying OBDII code b1668 and your airbag light is illuminated, it may indicate a fault in the Occupant Classification System.
This could be caused by a malfunctioning seat weight sensor, damaged wiring in the seat harness, or a faulty Occupant Classification Module.
To address Chrysler OBDII code b1668, check the seat weight sensor for proper operation, inspect the seat harness for any signs of damage, and test the Occupant Classification Module for faults.
Ensure all connectors are securely attached and free of corrosion to resolve the issue effectively.
