| Diagnosis and Testing This inspection will identify modifications or additions to the vehicle operating system that can affect diagnosis. - Vehicle modification
- Electronic add-on items
- Air conditioning
- Generators (alternators)
- Engine turbo
- Cellular telephone
- Cruise control
- CB radio
- Linear boosters
- Backup alarm signals
- Computer
- The above items, if not correctly installed, will affect powertrain control module (PCM) or transaxle function. Pay particular attention to add-on wiring splices in the PCM harness or transaxle wiring harness, abnormal tire size, or axle ratio changes.
Shift Linkage Check Check for a misadjustment in the shift linkage by matching the detents in the transmission range selector lever with those in the transaxle. If they match, the misadjustment is in the indicator. Do not adjust the shift linkage. Hydraulic leakage at the manual control valve can cause delay in engagement and/or slipping while operating if the linkage is not correctly adjusted. Correctly adjust the shift linkage. For additional information, refer to Section 307-05 Automatic Transmission/Transaxle External Controls. Check TSBs and OASIS Refer to all Technical Service Bulletins and OASIS messages which pertain to the transaxle concern and follow the procedures as outlined. Carry Out On-Board Diagnostics AAfter a road test, with the vehicle warm and before disturbing any connectors, carry out the Quick Test using the scan tool. Refer to the Vehicle Communication Module (VCM) and Integrated Diagnostic System (IDS) with appropriate hardware, or equivalent scan tool. | 
