OBD Guide
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B1310

Run/Start Control Circuit Short to Ground or Open

B1310 is an OBD-II diagnostic trouble code meaning: Run/Start Control Circuit Short to Ground or Open. Common causes: broken or damaged wiring, short circuit to ground. Estimated repair cost: $56–167.

Severity
🔴 High
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Engine won't start
  • Unstable engine operation
  • Check Engine Light Is On

Causes

  • Broken or damaged wiring
  • Short circuit to ground
  • Faulty start relay
  • Problems with the engine control unit

How to Fix

  1. Check the integrity of the wiring in the control circuit
  2. Check the start relay for malfunction
  3. Diagnose the engine control unit
  4. Replace damaged components

Related codes

B1311P0685P0686

FAQ

What does the B1310 code mean?

B1310 is an OBD-II diagnostic trouble code that indicates: Run/Start Control Circuit Short to Ground or Open

What causes a B1310 error code?

The most common causes of B1310 include: Broken or damaged wiring; Short circuit to ground; Faulty start relay; Problems with the engine control unit.

How do I fix a B1310 diagnostic trouble code?

To fix B1310: Check the integrity of the wiring in the control circuit. Check the start relay for malfunction. Diagnose the engine control unit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1310?

Yes, but get it checked soon

How much does it cost to fix B1310?

The estimated repair cost for B1310 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat