Remote Control Unit

Fault symptom
The remote control does not work.







Diagnostic procedure
1 Check the operation of the remote control
- The driver's door should be closed.
- Connect an Intelligent Saab Tester (ISAT) scan tool.
- Select "READ VALUES".
- Select "REMOTE CONTROL".
- Press the left-hand/right-hand button, observing the ISAT scan tool's display at the same time.
The ISAT scan tool should display "LH BUTTON" or "RH BUTTON" as appropriate, and "NO BUTTON" in the normal position.
Does it show the correct reading?
[YES] Proceed to point 5.
[NO] Continue with point 2.

2 Try again using a' new remote control
- Program the remote control.
- Repeat the ISAT scan tool commands as in point 1.
Does the remote control work?
[YES] Continue with point 3.
[NO] Proceed to point 4.







3 Check the old remote control
- Change the batteries, then check whether it works.
- Repeat the ISAT scan tool commands as in point 1.
Does it work?
[YES] The batteries were faulty.
[NO] Change the remote control.

4 Check the operation of the remote control
Hold the remote control as close to the control module as possible and repeat the ISAT scan tool commands as in point 1.
Does the scan tool show the correct reading?
[YES] Unplug the electronic control module and check for slide-out of the aerial pin in the connector.
If a visual check reveals no fault, try changing the aerial.
[NO] Proceed to point 6.







5 Check the driver's door switch
- Select "DRIVER DOOR".
- Open and close the driver's door.
The ISAT scan tool display should read "OPEN" and "CLOSED", as appropriate.
Does it display the correct readings?
[YES] Continue with point 6.
[NO] Proceed to "Fault diagnosis, door indication, driver's door".

6 Final test
Check to see if the fault symptom persists.
Does the trouble persist?
[YES] Continue as described in "Before Changing The Electronic Control Module".
[NO] The remedial measures taken were correct or the fault is of intermittent nature.