ACC / B0522 05
Read the instructions below then
start the fault diagnostic procedure.
Evaporator Temperature Sensor Circuit, Open/Short to B+
On-board diagnosis
Type of diagnosis:
Enable criteria:
Fault criteria:
| Voltage on control module sensor input exceeds 4.8 V. |
System reaction to a fault:
| The control module uses outside temperature as a substitute value. |
Checking the wiring harness
Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.
Diagnostic help
Diagnosis regards:
| Electrical fault in connecting leads or component. |
Functions in the diagnostic tool related to the fault:
| Evaporator Temperature Sensor |
