Citroën ë-C3 (2025) – Incorrect battery temperature reported via direct OBD connection (always 33°C)

Hello ABRP Support Team,

I would like to report a possible issue with the OBD PID configuration for my 2025 Citroën ë-C3 Max, 44 kWh LFP battery.

I am using ABRP on Android 16 with an OBDLink CX Bluetooth adapter, updated to the latest firmware.

What works correctly:

• Direct OBD connection to ABRP is stable.

• Battery SoC matches the vehicle dashboard.

• Battery voltage and odometer readings appear correct.

• Live OBD data updates normally.

The issue:

ABRP consistently reports a battery temperature of 33°C, regardless of the conditions.

Using Car Scanner ELM OBD2 with the same adapter, I obtained the following readings:

• BMS traction battery temperature: 23°C

• Average battery temperature: 23°C

• Individual battery temperature sensors: 23–24°C

• Battery coolant temperature: 22°C

These readings were obtained after a home charging session. ABRP had also reported 33°C on previous occasions, in different conditions.

OBD PID configuration observed in ABRP:

• Battery voltage: 22D510

• Telemetry key: voltage

• Equation: ((A<<8)+B)/10

• Battery temperature: 22D4DF

• Telemetry key: batt_temp

• Equation: ((A<<8)+B)/100

Interestingly, ABRP reports approximately 333–334 V and 33°C. The battery temperature therefore appears to be approximately one tenth of the voltage.

This may be coincidental, but it raises the possibility of an incorrect PID mapping, response decoding, or conversion formula. I have not modified the OBD PID configuration.

Could you please verify whether PID 22D4DF and its decoding formula are correct for the Citroën ë-C3?

I can provide screenshots of the ABRP PID configuration, live data and Car Scanner temperature readings if helpful.

Thank you for your assistance and for improving support for this vehicle.