B0163

Passenger Compartment Temperature Sensor Circuit

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$22–89 (est.)

Symptoms

Incorrect operation of climate control
Automatic mode does not maintain the set temperature
Incorrect temperature readings on the display
Ventilation works at full capacity
The air conditioner turns on spontaneously

Causes

Malfunction of the interior temperature sensor
Open or short circuit in the circuit
Poor contact in the connector
Wiring harness damage
HVAC control unit malfunction

How to Fix

Check the integrity of the sensor (measure resistance at different temperatures)
Check the voltage and continuity of the sensor circuit
Inspect connectors for corrosion and damage
Check ground connection
Replace temperature sensor if necessary
If the problem persists, check the HVAC module

Related codes

B0162 B0164 B0165