PCM Battery Malfunction
Table of contents
P1600 BUICK Possible Causes
- Faulty Powertrain Control Module (PCM)
- Powertrain Control Module (PCM) harness is open or shorted
- Powertrain Control Module (PCM) circuit poor electrical connection
How do I fix code P1600 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 P1600 BUICK code
The cost of diagnosing the P1600 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)
P1600 BUICK Description
Battery positive voltage is supplied to the Powertrain Control Module (PCM) even when the ignition switch is OFF for use by the Diagnostic Trouble Code (DTC) memory and air–fuel ratio adaptive control value memory, etc.