32-Evaporator Sensor Shorted (MTC): Notes

WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Evaporator Temperature Sensor Circuit Diagram

Courtesy of DAIMLERCHRYSLER CORP.

For the Manual Temperature Control (MTC) circuit diagram (Refer to HEATING & AIR CONDITIONING - SCHEMATICS AND DIAGRAMS) .

For a complete wiring diagram refer to SYSTEM WIRING DIAGRAMS .

When Monitored:
With the ignition on.
Set Condition:
If the Evaporator Temperature Sensor input is out of range toward the low voltage threshold.

Possible Causes
(C21) EVAPORATOR TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
(C21) EVAPORATOR TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO (C121) SENSOR GROUND CIRCUIT
EVAPORATOR TEMPERATURE SENSOR
A/C HEATER CONTROL

NOTE: This DTC must be active for the results of this test to be valid. Do not perform this test if this DTC is stored. Refer to HVAC System Test (MTC) for stored DTC test procedures.