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AutoCodes - Generic - C1556

C1556 Code - Ride Height Air Pressure Sensor

- Code Popularity: 11,292 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC C1556?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Ride Height Air Pressure Sensor
  • Ride Height Air Pressure Sensor harness is open or shorted
  • Ride Height Air Pressure Sensor circuit poor electrical connection
  • Faulty Air Suspension Control Module (ASCM)
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How to Fix the DTC C1556?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

C1556-12-RIDE HEIGHT AIR PRESSURE SENSOR - CIRCUIT SHORT TO BATTERY
C1556-14-RIDE HEIGHT AIR PRESSURE SENSOR - CIRCUIT SHORT TO GROUND OR OPEN
C1556-96-RIDE HEIGHT AIR PRESSURE SENSOR - COMPONENT INTERNAL FAILURE

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1556 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Anti-Lock Brake System (ABS) Warning Light ON
  • Engine Light ON (or Service Engine Soon Warning Light)

Code C1556 Description

The Air Suspension Control Module (ASCM) monitors the Ride Height Air Pressure Sensor. The ASCM sets the OBDII code when the Ride Height Air Pressure Sensor is not to factory specifications while the ignition is in the Run position.

OBDII Code C1556 - Ride Height Air Pressure Sensor - AutoCodes.com
C1556 Code - Ride Height Air Pressure Sensor

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Code C1556 comments

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