P0CC0: Drive Motor A Coolant Temperature Sensor Circuit Intermittent

P0CC0 is meant for a coolant temperature signal of drive motor A that drops out or jumps for short moments. No manufacturer documents this code publicly. GM's 2013 eAssist table, the most detailed public source for this sensor, monitors it only with P0CBD for plausibility and P0CBE/P0CBF for out-of-range values; Volvo and Polestar report P0CBC with failure type 62. CARB section (e)(15.2.1) asks for circuit and range faults of inputs to be detected, and (e)(15.2.3)(B)(ii) extends this to the cooling of the inverter. A sporadic code typically stems from a loose terminal, a chafed wire that touches metal only on bumps, or water in the connector. Since the reading normally recovers, the lamp may go out again; live data recorded during a drive help to catch the moment of the fault.

High severity. Can I keep driving?If the car still runs, drive as little as possible and go to a specialized repair shop. Do not touch the orange cables: they carry high voltage.

Symptoms

Warning lamp that appears and disappears
Jumping coolant temperature value in live data

Most likely causes

Loose or spread terminal in the sensor connector
Chafed wire making contact only on bumps
Moisture in the connector

What to check, in order

Start with the simplest. You can tick off each step.

Read the codes with a hybrid-compatible scanner and write down the freeze frame data
Gently move the wiring with the engine running and watch whether the reading changes.
Make sure the battery cooling air intake is clean
Check the 12 V auxiliary battery, which can also trigger warnings
Leave any high-voltage measurements to a specialized repair shop

Good to know

Repair difficulty: medium
It can trigger limp mode.
It affects emissions.

What each character of P0CC0 means

P: Powertrain: engine and transmission
0: Generic code: same on every make
C: Subsystem depends on the code range
C0: Specific fault in that system

Frequently asked questions

Can I keep driving with code P0CC0?

If the car still runs, drive as little as possible and go to a specialized repair shop. Do not touch the orange cables: they carry high voltage.

What causes code P0CC0?

The most common causes are: loose or spread terminal in the sensor connector; chafed wire making contact only on bumps; moisture in the connector.

Related codes

Sources

Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.