OBD Guide
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B210C

Starter Control Relay OFF

B210C is an OBD-II diagnostic trouble code meaning: Starter Control Relay OFF. Common causes: faulty starter relay, open or short circuit in wiring harness. Estimated repair cost: $22–111.

Severity
🔴 High
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$22–111 (est.)

Symptoms

  • Engine won't start
  • Clicking sound when trying to start
  • No response when turning the ignition key

Causes

  • Faulty starter relay
  • Open or short circuit in wiring harness
  • Problems with the ignition switch
  • Engine control unit (ECU) malfunction

How to Fix

  1. Check the condition of the starter relay and replace if necessary
  2. Check the integrity of the wiring harness and contacts
  3. Check the operation of the ignition switch
  4. Scan the engine control module for other errors

Related codes

B210DB210EP0615

FAQ

What does the B210C code mean?

B210C is an OBD-II diagnostic trouble code that indicates: Starter Control Relay OFF

What causes a B210C error code?

The most common causes of B210C include: Faulty starter relay; Open or short circuit in wiring harness; Problems with the ignition switch; Engine control unit (ECU) malfunction.

How do I fix a B210C diagnostic trouble code?

To fix B210C: Check the condition of the starter relay and replace if necessary. Check the integrity of the wiring harness and contacts. Check the operation of the ignition switch. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B210C?

Yes, but get it checked soon

How much does it cost to fix B210C?

The estimated repair cost for B210C is $22–111. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat