Engine-Codes - Generic - B1556

B1556 - Ignition Run/Start Circuit Open

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?

B1556 Possible Causes

  • Faulty Ignition Switch
  • Ignition Switch harness is open or shorted
  • Ignition Switch circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How do I fix code B1556

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Cost of diagnosing the B1556 code

Labor: 1.0

The cost of diagnosing the B1556 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

B1556 Meaning

The Body Control Module (BCM) monitors the Ignition Switch. The BCM sets the OBDII code when the Ignition Switch is not to factory specifications.

B1556 More Information

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Information for specific makes

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