P1607 Code - Powertrain Control Module Internal Circuit Malfunction
Quick Answer
The Powertrain Control Module (PCM) controls fuel injector timing and duration, idle speed, ignition and camshaft timing, PCM back-up functions, and other functions. Common causes include Faulty Engine Control Module (ECM), Faulty Powertrain Control Module (PCM). Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1607 indicates Powertrain Control Module Internal Circuit Malfunction.
- Common causes
- Common causes include Faulty Engine Control Module (ECM), Faulty Powertrain Control Module (PCM).
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1607 Description
What are the Possible Causes of the DTC P1607?
- Faulty Engine Control Module (ECM)
- Faulty Powertrain Control Module (PCM)
How to Fix the DTC P1607?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1607 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P1607 code?
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Need Help with the Code?
Get the P1607 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P1607 Acura — Powertrain Control Module Internal Circuit Malfunction
- P1607 Buick — Serial Communication Problem With Devise 7
- P1607 Cadillac — Serial Communication Problem With Devise 7
- P1607 Chevrolet — Serial Communication Problem With Device 7
- P1607 Chrysler — Powertrain Control Module Internal Shutdown Timer Slow Rationality
- P1607 Dodge — Powertrain Control Module Internal Shutdown Timer Slow Rationality
- P1607 GMC — Serial Communication Problem With Device 7
- P1607 Honda — Powertrain Control Module Internal Circuit Malfunction
- P1607 Hyundai — Vacuum Solenoid Valve Stuck On
- P1607 Infiniti — VVEL Control Module
- P1607 Isuzu — Engine Control Module Internal Circuit Malfunction
- P1607 Jaguar — Engine Control Module MIL Circuit
- P1607 Jeep — Powertrain Control Module Internal Shutdown Timer Slow Rationality
- P1607 Lexus — Cruise Control Input Processor
- P1607 Nissan — VVEL Control Module
- P1607 RAM — Powertrain Control Module Internal Shutdown Timer Slow Rationality
- P1607 Saab — Engine Control Module Defective
- P1607 Scion — Cruise Control Input Processor
- P1607 Toyota — Cruise Control Input Processor
Frequently Asked Questions about P1607 Code
1. What are common symptoms of OBDII code P1607, Powertrain Control Module Internal Circuit Malfunction?
- Common symptoms include engine stalling, rough idling, poor acceleration, and the illumination of the Check Engine Light.
2. What are the possible causes of OBDII code P1607?
- The code P1607 can be caused by issues such as a faulty powertrain control module (PCM), damaged wiring or connectors, or a software malfunction within the PCM.
3. How can I diagnose OBDII code P1607?
- Diagnosing code P1607 typically involves using an OBDII scanner to retrieve the code, checking for any related codes, inspecting the PCM and its connections, and testing the wiring for continuity and shorts.
4. Can I drive my vehicle with OBDII code P1607?
- While it may be possible to drive your vehicle with code P1607, it is not recommended as it can lead to further damage and potential safety hazards. It's best to address the issue promptly.
5. How can I repair OBDII code P1607?
- Repairing code P1607 may involve replacing the PCM, repairing or replacing damaged wiring or connectors, updating the PCM software, or performing a relearn procedure.
6. Is it safe to reset the Check Engine Light after fixing OBDII code P1607?
- Yes, it is safe to reset the Check Engine Light after fixing code P1607. This can be done using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes.
7. Can a DIYer fix OBDII code P1607, or is professional help required?
- While some experienced DIYers may be able to address code P1607, it is recommended to seek professional help, especially when dealing with PCM-related issues, to ensure proper diagnosis and repair.
8. Will OBDII code P1607 cause my vehicle to fail an emissions test?
- Yes, code P1607 can cause your vehicle to fail an emissions test since it indicates a malfunction within the powertrain control module, which is crucial for proper emissions control.
9. How much does it typically cost to repair OBDII code P1607?
- The cost of repairing code P1607 can vary depending on the underlying cause, parts needed, labor rates, and whether you choose to DIY or seek professional help. Costs can range from a few hundred to over a thousand dollars.
10. Are there any preventive measures to avoid OBDII code P1607 in the future?
- To help prevent OBDII code P1607, it's advisable to regularly maintain your vehicle, address any warning signs promptly, avoid electrical system overloads, and ensure proper battery and alternator function.
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