Hybrid Battery Temperature Sensor Circuit Low
The P0C35 code indicates that the hybrid battery temperature sensor circuit is reading a voltage lower than expected. This sensor monitors the temperature of the high-voltage hybrid battery pack. A low circuit condition typically means the sensor signal is shorted to ground, the sensor itself has failed, or there is an open in the reference voltage or signal wire. This can lead to inaccurate temperature readings, potentially causing the hybrid system to limit performance or shut down to protect the battery.
01. Most Common Causes
- Faulty hybrid battery temperature sensor
- Short to ground in sensor circuit wiring
- Open circuit in sensor wiring or connector
- Corroded or damaged connector pins
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Reduced hybrid system performance or power
- Hybrid system warning messages on dashboard
- Possible battery overheating or thermal management issues
03. Step-by-Step Diagnosis
Step 1: Connect a scan tool and verify the P0C35 code. Check for any additional related codes.
Step 2: Inspect the hybrid battery temperature sensor and its wiring for damage, corrosion, or loose connections.
Step 3: Using a multimeter, check the sensor's resistance and compare to manufacturer specifications. Also check for continuity and shorts in the circuit.
Step 4: If the sensor and wiring are okay, test the hybrid battery control module for proper operation or update software if applicable.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive with this code as it can lead to incorrect battery temperature readings, potentially causing the hybrid system to limit power or shut down, and may risk battery damage.
How much does it cost to fix?▼
The cost typically ranges from $50 to $150 for diagnosis and sensor replacement, but can be higher if wiring repairs or module replacement is needed.