Test Description

WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table

3. This step tests for low fluid level, which may cause slipping and result in an undefined gear ratio.
4. This step verifies that the correct gear ratios occur for commanded gears.
5. This step tests for low line pressure.

Fig 1: DTC P0730 Diagnosis (Steps 1-8)

Courtesy of GENERAL MOTORS CORP.

Fig 2: DTC P0730 Diagnosis (Steps 9-10)

Courtesy of GENERAL MOTORS CORP.