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.
The cost to diagnose the P1600 Chevrolet 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.
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.
Need more information on how to fix the P1600 Chevrolet code? Get Access to Factory Service Manuals
Get the P1600 Chevrolet code diagnosed by a professional: Find a repair shop in your area