Engine-Codes - GMC - P1633 GMC

P1633 GMC Code - Ignition Supply Power Circuit Low Voltage

- Code Popularity: 10,038 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
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What are the Possible Causes of the DTC P1633 GMC?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Low battery voltage
  • Blown fuse
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How to Fix the DTC P1633 GMC?

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 pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P1633 GMC code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

What Does the P1633 GMC Code Mean?

With the key on, no Class 2 serial data received, the Powertrain Control Module (PCM) detects an improper Supplement Power Circuit (Circuit 0) voltage

P1633 GMC Code - Ignition Supply Power Circuit Low Voltage

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