P2E7E

A/C Compressor Control Module Internal Temperature Sensor B Circuit High

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Air conditioner doesn't work
Hot air from ducts
Fault indication on the instrument panel
Reduced cooling system performance
Noisy compressor operation

Causes

Malfunction of temperature sensor B in the compressor module
Open or short circuit in the sensor circuit
Poor contact in wiring connectors
Compressor control module overheating
Control module internal fault

How to Fix

Check the condition of the connectors and wiring to the compressor module
Measure the resistance of the temperature sensor
Check the voltage in the sensor circuit
Replace temperature sensor or control module if necessary
Ensure proper cooling of the control module

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