Diagnostic Procedure

When performing vehicle diagnosis ensure the following procedure is performed in order listed:

Read any fault codes before battery is disconnected, see SELF-DIAGNOSTIC SYSTEM.
Ensure transaxle fluid level is correct and fluid is neither contaminated or burnt.
Inspect and adjust throttle cable, kickdown cable and gear position sensor (if necessary). See appropriate AUTOMATIC TRANSMISSION SERVICING article in TRANSMISSION SERVICING section.
Check idle speed RPM and adjust as necessary.
Check stall speeds, see STALL SPEED TESTS.
Check hydraulic pressure, see HYDRAULIC PRESSURE TEST .
Test drive vehicle and document shift points, see ROAD TEST.
Repair diagnostic trouble codes in order displayed.

NOTE: Saab scan tool (ISAT) can be used in 6 different system test functions using manufacturer's instructions to activate system components and perform several tests on transaxle. See manufacturer's instructions.