OBD Guide
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P16B0

Engine Control Module Self-Test Accelerator Pedal Position Monitoring Fault

P16B0 is an OBD-II diagnostic trouble code meaning: Engine Control Module Self-Test Accelerator Pedal Position Monitoring Fault. Common causes: malfunction of the accelerator pedal position sensor, damage to wiring or connectors. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Incorrect response to pressing the accelerator pedal
  • Floating engine speed
  • Check Engine light comes on
  • Reduced engine power
  • The car goes into emergency mode

Causes

  • Malfunction of the accelerator pedal position sensor
  • Damage to wiring or connectors
  • Grounding problems
  • Engine control module (ECM) malfunction
  • Software error in ECM

How to Fix

  1. Check the accelerator pedal position sensor
  2. Inspect wiring and connectors for damage
  3. Check grounding
  4. Scan the ECM for errors
  5. Update or reflash ECM software

Related codes

P16B1P16B2P16B3

FAQ

What does the P16B0 code mean?

P16B0 is an OBD-II diagnostic trouble code that indicates: Engine Control Module Self-Test Accelerator Pedal Position Monitoring Fault

What causes a P16B0 error code?

The most common causes of P16B0 include: Malfunction of the accelerator pedal position sensor; Damage to wiring or connectors; Grounding problems; Engine control module (ECM) malfunction.

How do I fix a P16B0 diagnostic trouble code?

To fix P16B0: Check the accelerator pedal position sensor. Inspect wiring and connectors for damage. Check grounding. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P16B0?

Limited driving only, diagnose soon

How much does it cost to fix P16B0?

The estimated repair cost for P16B0 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat