DRIVE

DRIVE

-	Connect the ISAT Scan Tool.

-	Turn the ignition switch to the ON position.

-	Select "READ ON/OFF".

-	Select "DRIVE".

-	Check whether an input signal is present by moving the selector lever from P and N to another gear position.

Does the ISAT scan tool show a correct reading?

yes

Change the idle air control valve. Continue with point 3.

no

Continue with point 2.

2. Check the DRIVE signal

-	Unplug the Motronic control module.

-	Connect a test lamp to the Motronic control module's connector between:

-	Turn the ignition switch to the ON position.

The test lamp should light up when the selector lever is in any position other than P or N.

Result OK?

yes

Continue with point 3.

no

Check and if necessary repair or replace the lead between pin 86 of the Motronic control module and pin 11 of the TCM control module. If the lead is OK, continue fault diagnosis as described in Service Manual 4:2 "Automatic transmission".

3. Final check

-	Check whether the DRIVE fault symptom persists.

Does the trouble persist?

yes

Continue as described in .

no

The steps taken to rectify the fault were correct.