What does the Peugeot P0606 fault code mean?

2 Answers
ONadia
07/25/25 3:58pm
Peugeot P0606 fault code indicates an internal engine management malfunction. Here are the specific details about the P0606 fault code: 1. Cause: The P0606 fault code may be triggered by modifications using non-original parts. After this code appears, first try deleting it to see if it reappears. If it reappears quickly, it indicates that the electronic control module needs replacement. 2. Precautions: After troubleshooting, the fault code often needs to be cleared. When clearing the code, be sure to follow the specified fault code clearing method for your vehicle model. Do not directly disconnect the negative ground wire to clear the fault code. Most vehicle central computers have memory functions. If the battery negative ground wire is disconnected carelessly, engine operation data stored in RAM will be lost, leading to poor performance for a considerable period after repair or the reappearance of previous fault codes shortly after driving.
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McMia
08/11/25 9:39pm
Hey, the Dongfeng Peugeot is showing a P0606 trouble code, which indicates an issue with the engine control module (ECU). As someone who frequently repairs cars, I've seen many cases like this: the ECU's internal processor fails, possibly due to hardware burnout or software crashes, leading to symptoms like the engine light turning on, poor acceleration, or even failure to start. When checking, don’t tamper with the ECU itself. First, use a diagnostic tool to confirm the trouble code is accurate, then inspect the power lines and connectors for looseness or corrosion—voltage instability can also affect the system. In the long run, regular maintenance, including cleaning dust from the engine compartment, can help prevent such issues. If the problem persists, the safest option is to take it to a Peugeot specialist shop for an ECU replacement. Otherwise, driving with the issue risks a breakdown on the road, which is a big hassle. Safety first—don’t try to fix it yourself recklessly!
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