OBD Guide
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B211E

Ignition Run/ACC/Pad Control Circuit Low

B211E is an OBD-II diagnostic trouble code meaning: Ignition Run/ACC/Pad Control Circuit Low. Common causes: open or shorted wiring harness, oxidation of contacts in the relay block. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • Engine won't start
  • Airbag light is on
  • The ignition key does not switch to ACC/RUN mode
  • Malfunctions in electrical systems

Causes

  • Open or shorted wiring harness
  • Oxidation of contacts in the relay block
  • Faulty ignition relay
  • Problems with the passive safety module
  • Short circuit in the squib circuit

How to Fix

  1. Check voltage at ignition relay
  2. Inspect the wiring harness from the ignition switch to the control unit
  3. Check the integrity of the passive safety circuit
  4. Test the operation of the security module with a scanner
  5. Clean the contacts in the system connectors

Related codes

B2100B2110B2120

FAQ

What does the B211E code mean?

B211E is an OBD-II diagnostic trouble code that indicates: Ignition Run/ACC/Pad Control Circuit Low

What causes a B211E error code?

The most common causes of B211E include: Open or shorted wiring harness; Oxidation of contacts in the relay block; Faulty ignition relay; Problems with the passive safety module.

How do I fix a B211E diagnostic trouble code?

To fix B211E: Check voltage at ignition relay. Inspect the wiring harness from the ignition switch to the control unit. Check the integrity of the passive safety circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B211E?

Do not drive — repair immediately

How much does it cost to fix B211E?

The estimated repair cost for B211E is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat