OBDII Code List

B121A DODGE - Right Heated Seat HI Indicator Control Circuit High

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty Right Heated Seat Switch
  • Right Heated Seat Switch harness is open or shorted
  • Right Heated Seat Switch circuit poor electrical connection
  • Faulty Instrument Cluster

Possible symptoms

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

B121a Dodge Description

The Instrument Cluster monitors the Right Heated Seat Switch. This code is set immediately when the Cluster detects excessive voltage on the heated seat indicator control circuit.
OBDII Code B121a Dodge - Right Heated Seat HI Indicator Control Circuit High -

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B121A DODGE Comments

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