OBD Guide

B097B

Power Mode Start Switch Circuit

B097B is an OBD-II diagnostic trouble code meaning: Power Mode Start Switch Circuit. Common causes: faulty power switch, open or short circuit in wiring harness. Estimated repair cost: $33–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • Problems starting the engine
  • Incorrect operation of systems at different key positions
  • Failure of the audio system or other consumers
  • Dashboard flashing
  • Engine stalls after starting

Causes

  • Faulty power switch
  • Open or short circuit in wiring harness
  • Oxidized or damaged contacts
  • Problems with the control unit
  • Poor circuit grounding

How to Fix

  1. Diagnosing the power switch circuit with a multimeter
  2. Checking contacts and connectors for corrosion and damage
  3. Testing the functionality of the switch itself
  4. Checking the integrity of the wiring harness
  5. Replacing a faulty switch or repairing wiring
  6. Resetting the error code and checking the system operation

Related codes

Error B097B by Vehicle Brand

FAQ

What does the B097B code mean?

B097B is an OBD-II diagnostic trouble code that indicates: Power Mode Start Switch Circuit

What causes a B097B error code?

The most common causes of B097B include: Faulty power switch; Open or short circuit in wiring harness; Oxidized or damaged contacts; Problems with the control unit.

How do I fix a B097B diagnostic trouble code?

To fix B097B: Diagnosing the power switch circuit with a multimeter. Checking contacts and connectors for corrosion and damage. Testing the functionality of the switch itself. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B097B?

Limited driving only, diagnose soon

How much does it cost to fix B097B?

The estimated repair cost for B097B is $33–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat