P1600 - ECM BATT Malfunction

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3    What is this?
Table of contents

P1600 Possible Causes

  • Faulty Engine Control Module (ECM)
  • Engine Control Module (ECM) harness is open or shorted
  • Engine Control Module (ECM) circuit poor electrical connection

How do I fix code P1600?

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 code

Labor: 1.0

The cost of diagnosing the P1600 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 Description

Battery positive voltage is supplied to the Engine Control Module (ECM) 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.
OBDII Code P1600 - ECM BATT Malfunction - AutoCodes.com

P1600 More Information

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