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B21F9 Jeep Code - Exterior Lighting Power Supply Input 2 Circuit Open

- Code Popularity: 585 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B21F9 Jeep?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Blown Exterior Lighting Fuse
  • Exterior Lighting Fuse harness is open or shorted
  • Exterior Lighting Fuse circuit poor electrical connection
  • Faulty Body Control Module (BCM)
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How to Fix the DTC B21F9 Jeep?

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.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B21F9 Jeep code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code B21F9 Jeep Description

The Body Control Module (BCM) monitors the Exterior Lighting Power Supply Input 2 Circuit. The BCM sets the OBDII code when it detects less than 1.0 volt on the Fused B(+) circuit.

OBDII Code B21F9 Jeep - Exterior Lighting Power Supply Input 2 Circuit Open - AutoCodes.com
B21F9 Jeep Code - Exterior Lighting Power Supply Input 2 Circuit Open

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Code B21F9 Jeep comments

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