OBD Guide

P15B1

Camshaft Position Sensor / Crankshaft Position Sensor Signal Correlation

P15B1 is an OBD-II diagnostic trouble code meaning: Camshaft Position Sensor / Crankshaft Position Sensor Signal Correlation. Common causes: camshaft position sensor malfunction, crankshaft position sensor malfunction. Estimated repair cost: $28–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Unstable idle
  • Power dips during acceleration
  • Difficulty starting the engine
  • Increased fuel consumption
  • Check Engine Light Is On

Causes

  • Camshaft position sensor malfunction
  • Crankshaft position sensor malfunction
  • Problems with wiring or connectors
  • Mechanical damage to the timing drive
  • Camshaft gears are misaligned or worn

How to Fix

  1. Check the integrity of the wiring and sensor connectors
  2. Check the functionality of the CMP and CKP sensors
  3. Check the mechanical condition of the timing drive
  4. Replace faulty sensors if necessary
  5. Check and adjust valve timing

Related codes

FAQ

What does the P15B1 code mean?

P15B1 is an OBD-II diagnostic trouble code that indicates: Camshaft Position Sensor / Crankshaft Position Sensor Signal Correlation

What causes a P15B1 error code?

The most common causes of P15B1 include: Camshaft position sensor malfunction; Crankshaft position sensor malfunction; Problems with wiring or connectors; Mechanical damage to the timing drive.

How do I fix a P15B1 diagnostic trouble code?

To fix P15B1: Check the integrity of the wiring and sensor connectors. Check the functionality of the CMP and CKP sensors. Check the mechanical condition of the timing drive. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P15B1?

Yes, but get it checked soon

How much does it cost to fix P15B1?

The estimated repair cost for P15B1 is $28–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat