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B1746

Read the instructions below then start the fault diagnostic procedure.

Symptom: Outside temperature function on SID display faulty.

B1746


Outside temperature sensor. Short-circuit to ground. Open circuit/shorting to B+.


Fault symptoms

Outside temperature function on SID display faulty.

Condition

Open circuit: resistance higher than 350 kohm

Short-circuit to ground: resistance lower than 100 ohms

Diagnostic help

The outside temperature sensor can be read using Tech 2. Both the unfiltered and the filtered values can be read.

The outdoor temperature sensor can be adjusted ± 5°C.

Check the wiring harness

Jiggle the wiring harness at several points and in different directions to detect intermittent breaks and short-circuits in the leads. Observe the multimeter, test lamp or diagnostics instrument during the test.