Ignition 1 Power Circuit Low Voltage
Table of contents
P1634 BUICK Possible Causes
- Faulty Ignition Control Module (ICM)
- Faulty Ignition 1 Power
- Ignition 1 Power harness is open or shorted
- Ignition 1 Power circuit poor electrical connection
How do I fix code P1634 BUICK?
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 P1634 BUICK code
The cost of diagnosing the P1634 BUICK code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1634 BUICK Description
With the key on, no Class 2 serial data received, the Powertrain Control Module (PCM) detected an improper Ignition 1 Power Circuit (Circuit 1) voltage.