P1607 Jeep Code - Powertrain Control Module Internal Shutdown Timer Slow Rationality
Quick Answer
The P1607 diagnostic trouble code (DTC) for Jeep vehicles refers to the Powertrain Control Module (PCM) Internal Shutdown Timer Slow Rationality. Common causes include Electrical faults within the PCM, Wiring issues or shorts, Malfunctioning shutdown timer circuit. 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 Jeep indicates Powertrain Control Module Internal Shutdown Timer Slow Rationality.
- Common causes
- Common causes include Electrical faults within the PCM, Wiring issues or shorts, Malfunctioning shutdown timer circuit.
- 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.
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Code P1607 Jeep Description
The P1607 diagnostic trouble code (DTC) for Jeep vehicles refers to the Powertrain Control Module (PCM) Internal Shutdown Timer Slow Rationality. This code indicates that the PCM has detected a slow response from the internal shutdown timer, which is responsible for shutting down the PCM in certain situations. The PCM is a crucial component of the vehicle's engine control system, responsible for managing various functions such as fuel injection, ignition timing, and emissions control. When the shutdown timer does not operate as expected, it can lead to issues with the vehicle's performance and overall operation.
Common Causes of P1607 Jeep
- Electrical faults within the PCM
- Wiring issues or shorts
- Malfunctioning shutdown timer circuit
- Corrosion or damage to electrical connectors
- Faulty PCM software or hardware
Symptoms of P1607 Jeep
- Check Engine Light illuminated on the dashboard
- Reduced power mode
- Engine stalling or rough idling
- Poor fuel efficiency
- Vehicle may fail to start
How to Fix P1607 Jeep
- Perform a comprehensive diagnostic scan to retrieve the trouble codes and pinpoint the issue.
- Inspect the wiring harness and electrical connectors for any signs of damage, corrosion, or loose connections.
- Test the internal shutdown timer circuit and related components for proper operation.
- If necessary, replace the PCM with a new unit and reprogram it with the latest software updates.
- Clear the trouble codes, reset the PCM, and perform a test drive to ensure the issue has been resolved.
Cost to Fix P1607 Jeep
The typical repair costs for addressing a P1607 code in a Jeep vehicle can vary depending on the specific cause of the issue and the labor rates in your area. On average, you can expect to pay anywhere from $200 to $500 for parts and labor to resolve this problem. Keep in mind that diagnostic time and labor rates can fluctuate based on factors such as location, vehicle make and model, and engine type. It is advisable to contact local auto repair shops for a more accurate estimate tailored to your situation.
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Frequently Asked Questions about P1607 Jeep Code
No Frequently Asked Questions about P1607 Jeep Code found.
Discuss the causes and fixes for P1607 Jeep OBDII Code
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I have a 08 jeep compass runs good, but when shut off 1 minute later car stops all electrical functions. If i start car headlights come on without switch on. I have to pull battery connection restart car all back to normal
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Start by checking the battery voltage and if the alternator is charging. Battery voltage should be above 12V and the alternator should be charging around 14V. If the battery and alternator are OK, then the next step is to check the coolant temperature sensor and PCM
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Have 2007 jeep compass and it wont rev past 2500 rpm. Engine surges but no trouble codes aareshowing on scanner.
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Unfortunately there are many things that could cause that problem, without a code you will be just guessing what the problem is. Try disconnecting the car battery for about 30 minutes to reset the system.
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Hi I just change my alternator on my 2010 Jeep Patriot. Before I change the alternator the battery was on 12.2v, wound cause the P1607 check engine light to come on and can I clean the code if at was the cause of it.
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What is battery voltage with the engine running?
Yes, you could try clearing the code. -
At this moment, do you have any other problems besides the engine light?
The 15.5V is with the engine running?
At idle, most charging systems will produce 13.8 to 14.3 volts with no lights or accessories on. -
I went on road test and my alternator was charging around 13.8 to 14.5 when idle at the traffic light. On my OBD scanner
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My jeep Compass 2010 2.4L coses p0300 and p1607 Car loses power and check engine light flashes motor shakes. What cold be I change spark plugs coils and crankshaft position sensor that gave me that code before.
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For the P0300 code the most common problem is the Spark Plugs and for the P1607 is the battery. If the battery is OK, then you probably have a problem with the Powertrain Control Module (PCM). Also, before replacing any parts make sure the battery is fully charge and the alternator charge is good.
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I have a 2009 Jeep Patriot Sport 2.4L. It was running fine most of the day then all of a sudden it lost power and motor was shaking real bad. It was throwing P0301 changed plugs checked coils, fuel injectors and wires. Also changed fuel pump intake manifold leaking Val cover gaskets and just changed the 02 sensor. The P0301 went away but now code P1607 is being thrown. The shaking is still there just don't seem as bad and still no power.. Any ideas on why it changed codes and what could be causing it.
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Are you able to clear the code? The most common cause of the P1607 code is the battery or alternator, but those components will not cause the engine to run rough. If the battery and alternator are OK, I recommend having a tech diagnose the problem, instead of replacing more parts.
If the engine is running rough and if you have already replaced spark plugs, coils, injectors, and wires, then it's very possible you have a mechanical problem, e.g. bent valve(s) or damage cylinders.
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