Door indication, driver and passenger doors
Symptom: Alarm not armed. Doors disconnected from alarm function.
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Door indication, driver and passenger doors
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Fault symptom
Alarm not armed. Doors disconnected from alarm function.
Diagnostic procedure
1 Check the "DOOR OPEN" indicator lamp
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Open and close one door at a time, observing the "DOOR OPEN" indicator lamp in the main instrument display panel.
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Repeat the process for all doors.
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Is the indicator lamp working correctly?
Continue with point 4.
Continue with point 2.
2 Check diagnostic trouble codes in ICE
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Connect the ISAT scan tool.
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Select "READ FAULT CODES".
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Check whether diagnostic trouble code B1437, "DOOR OPEN" indicator lamp shorted to Batt+, is stored.
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Is the DTC present?
Continue fault diagnosis as described in Service Manual 3:5 Electrical system "ICE".
Continue with point 3.
3 Check the "DOOR OPEN" indicator lamp
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Select "ACT.INSTR.FUNCT".
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Select "DOOR INDIC.LAMP".
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By selecting "ON" and "OFF", the above command controls the "DOOR OPEN" indicator lamp.
Does the indicator lamp come on when activated?
Continue fault diagnosis as described in Service Manual 3:5 Electrical system "ICE", checking door switches. If the indicator lamp remains on continuously, proceed to point 5 after checking other parts as above.
Continue fault diagnosis as described in Service Manual 3:5 Electrical system "ICE" or "MIU".
4 Check the operation of the door switches
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Select "PASSENGER DOOR".
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Open and close one door at a time while observing the ISAT scan tool display.
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Repeat the process for all doors.
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Is ISAT indicating correctly?
Continue with point 6.
Continue with point 5.
5 Check the wiring connected to the electronic control module
Check the wiring harness for continuity between pin 8 of connector H33-3 and pin 4 of the electronic control module.
The resistance should be < 1 ohm.
Is the resistance correct?
Continue with point 6.
Repair or replace the wiring harness.
6 Final check
Check to see if the fault symptom remains.
Is the problem still present?
See "Before replacing a control module".
The remedial measures taken were correct or the fault is of intermittent nature.
