OBD Guide
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P163B

Secondary Generator Control Circuit Range/Performance

P163B is an OBD-II diagnostic trouble code meaning: Secondary Generator Control Circuit Range/Performance. Common causes: generator malfunction, damage to wiring or connectors. Estimated repair cost: $33–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • Check Engine Light Is On
  • Unstable operation of electrical equipment
  • Reduced generator performance
  • Battery low

Causes

  • Generator malfunction
  • Damage to wiring or connectors
  • Problems with the engine control unit
  • Voltage regulator malfunction

How to Fix

  1. Check the generator for functionality
  2. Inspect wiring and connectors for damage
  3. Check voltage regulator
  4. Test the ECU for errors

Related codes

P163AP163C

FAQ

What does the P163B code mean?

P163B is an OBD-II diagnostic trouble code that indicates: Secondary Generator Control Circuit Range/Performance

What causes a P163B error code?

The most common causes of P163B include: Generator malfunction; Damage to wiring or connectors; Problems with the engine control unit; Voltage regulator malfunction.

How do I fix a P163B diagnostic trouble code?

To fix P163B: Check the generator for functionality. Inspect wiring and connectors for damage. Check voltage regulator. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P163B?

Yes, but get it checked soon

How much does it cost to fix P163B?

The estimated repair cost for P163B is $33–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat