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P0CD500 — Temperature sensor for low-temperature circuit (TME: TW8 / BMS: HV battery output) – open circuit

Temperature sensor for low-temperature circuit (TME: TW8 / BMS: HV battery output) – open circuit. The Taycan, 911 (992), Panamera (971), Panamera (972) and Cayenne report this code; below is which control unit sets it on each model and how to read and clear it.

Which models and control units set P0CD500

Porsche Taycan

Porsche 911 (992)

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear P0CD500

  1. Plug a standard ENET (Ethernet-to-OBD) cable into your Porsche's OBD port and your Mac or Windows PC.
  2. Open STEUER14, pick your car and run a fault scan: every control unit is read, and P0CD500 shows with its status, its full description and the freeze frame when the unit stores one.
  3. Fix the cause first, then clear the fault memory and scan again to check it stays away. Reading and clearing fault codes is free on every control unit.

More about fault memory in the manual →

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Other codes of the Thermal Management

P086400Engine electronics (DME) – signal implausible
P0C3200Low-temperature circuit for high-voltage battery – cooling performance too low
P0C4200Temperature sensor for low-temperature circuit (TME: TW7 / BMS: HV battery input) – open circuit
P0C4300Temperature sensor for low-temperature circuit (TME: TW7 / BMS: HV battery input) – signal implausible
P0C4400Temperature sensor for low-temperature circuit (TME: TW7 / BMS: HV battery input), short circuit to ground
P0C4500Temperature sensor for low-temperature circuit (TME: TW7 / BMS: HV battery input), short circuit to B+
P0CD600Temperature sensor for low-temperature circuit (TME: TW8 / BMS: HV battery output) – signal implausible
P0CD700Temperature sensor for low-temperature circuit (TME: TW8 / BMS: HV battery output), short circuit to ground
P0CD800Temperature sensor for low-temperature circuit (TME: TW8 / BMS: HV battery output), short circuit to B+
P0CDF00Coolant valve 1 for hybrid/high-voltage battery – electrical fault
P0CE000Coolant valve 1 for hybrid/high-voltage battery – stuck open
P0CE100Coolant valve 1 for hybrid/high-voltage battery – stuck closed

All 636 codes of this control unit →

Fault names come from the manufacturer's diagnostic data. STEUER14 is independent and not affiliated with Porsche AG. A code tells you what a control unit detected, not always which part failed — check wiring, supply voltage and related codes before replacing parts. STEUER14 shows each fault's full description, status and freeze frame on the car.