B1348
B1348 |
Conditions
B1348: Control module input pin 32, open circuit or shorted to battery positive.Diagnostic procedure
If diagnostic trouble code B1515 has been generated it should be dealt with first. See .1. |
Connect the ISAT and obtain a "MIXED AIR SENSOR" readout. The voltage should be within 1-4 V and change when the selected indoor temperature is changed.
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2. |
Unplug the 10-pin connector (H10-5) and check the voltage across connector pins 9 and 10. It should be about 4.5 - 5 V. If it is not, proceed to point 4.
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4. |
Unplug the ACC control module's connector. Connect a BOB to the wiring and check the leads for continuity and/or shorting as follows:
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across pin 14 of the ACC control module's connector and pin 9 of the sensor's connector H10-5
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across pin 32 of the ACC control module's connector and pin 10 of the sensor's connector H10-5.
Rectify any faulty lead in the wiring. |
5. |
If the fault persists, proceed to section
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