What does the Peugeot Dongfeng fault code P0597 mean?
3 Answers
Peugeot Dongfeng 3008 fault code P0597 refers to the thermostat heater control circuit/open circuit, which means the thermostat heater circuit fuse is blown, or the thermostat heater plug is detached. The computer detects no voltage in the circuit, thus reporting this fault code. The following is a related introduction to the 2021 Peugeot 508L: 1. Power: The 2021 Peugeot 508L is equipped with a 1.6T and 1.8TL four-cylinder turbocharged engine. The 1.6T has a maximum power of 170 horsepower, a maximum power of 125KW, and a maximum torque of 250 N·m, paired with an Aisin 6-speed automatic transmission. 2. Interior: It leans towards a youthful and fashionable design. The new car adopts the i-Cockpit cabin design, featuring a compact two-spoke racing steering wheel, a standard 12.3-inch LCD instrument panel mounted above the center console, and an 8 to 10-inch central control screen tilted towards the driver's side.
When dealing with Dongfeng Peugeot faults, I found that the P0597 code usually indicates a problem with the thermostat's heating control circuit, possibly due to an open circuit or excessive resistance preventing normal current flow. This component is responsible for regulating coolant temperature. If it fails, the engine may run too cold or overheat, affecting efficiency. To troubleshoot, first check the fuse box for any blown fuses, then inspect the engine compartment wiring harness connectors for looseness or corrosion. If you're working on it yourself, be cautious with voltage testing. However, it's best to have a professional shop confirm the issue with a diagnostic tool. Otherwise, circuit faults could escalate, increasing driving risks. Unstable water temperature, a sudden surge in fuel consumption, or even stalling and needing a tow would be too troublesome.
I encountered the P0597 trouble code in my car, which means the thermostat heater is faulty or the wiring is disconnected. While driving, noticeable fluctuations in coolant temperature and slow heating from the vents can be observed. The inspection method is super simple: after parking, pop the hood and locate the thermostat, usually near the water pump. Use a multimeter to measure the resistance—normally a few ohms. If it shows infinity, it indicates an open circuit. The fuse is easy to replace in the fuse box, but replacing the thermostat requires tools and patience—don’t force it if unsure. Otherwise, it’s better to seek professional help to avoid higher costs from engine overheating.
