Powertrain Control Module Internal Circuit Malfunction
Table of contents
P1607 Possible Causes
- Faulty Engine Control Module (ECM)
- Faulty Powertrain Control Module (PCM)
How do I fix code P1607?
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 P1607 code
The cost of diagnosing the P1607 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)
P1607 Description
The Powertrain Control Module (PCM) controls fuel injector timing and duration, idle speed, ignition and camshaft timing, PCM back-up functions, and other functions. The Powertrain Control Module monitors itself for malfunctions. The Diagnostic Trouble Code (DTC) will set when the Powertrain Control Module detects an internal circuit failure.