P1558 GMC Code - Cruise Control Servo Indicates Low
Quick Answer
With the engine running, throttle angle input less than 50%, the Powertrain Control Module (PCM) detects a desired Servo Position Sensor position of 90% and Actual Servo Position of less than 2% for 3 seconds in the test. Common causes include Faulty Cruise Control Servo, Cruise Control Servo harness is open or shorted, Cruise Control Servo circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
- What it means
- P1558 GMC indicates Cruise Control Servo Indicates Low.
- Common causes
- Common causes include Faulty Cruise Control Servo, Cruise Control Servo harness is open or shorted, Cruise Control Servo circuit poor electrical connection.
- Severity
- Low - monitor the vehicle and repair when practical.
- Can I drive?
- The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Code P1558 GMC Description
What are the Possible Causes of the DTC P1558 GMC?
- Faulty Cruise Control Servo
- Cruise Control Servo harness is open or shorted
- Cruise Control Servo circuit poor electrical connection
How to Fix the DTC P1558 GMC?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1558 GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P1558 GMC Code
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