Engagement Concern: Harsh Forward ONLY
DIAGNOSTIC ROUTINES ENGAGEMENT CONCERN: HARSH FORWARD ONLY
| Possible Component | Reference/Action |
|---|---|
| 204A - ELECTRICAL ROUTINE | |
| Powertrain Control System | |
| PCM, vehicle wiring harness and SSC. | Carry out on-board diagnostic tests. Refer to the SELF-DIAGNOSTICS - EEC-V - GASOLINE & NGV article for diagnosis and testing of the PCM. |
| Carry out Pinpoint Test A, refer to PINPOINT TEST A: SHIFT AND TORQUE CONVERTER CLUTCH SOLENOIDS (ONLY) . | |
| Repair as required. Clear the DTCs, road test and rerun on-board diagnosis test. | |
| 304A - HYDRAULIC/MECHANICAL ROUTINE | |
| Incorrect Pressures | |
| High pressures. | Check pressure at Line tap. Refer to LINE PRESSURE TEST . Follow pressure diagnosis and repair as required. |
| Main Control | |
| Bolts not tightened to specification. | Tighten to specifications. |
| Separator plate damaged. | Inspect for damage. If damaged, repair as necessary. |
| Contamination. | Disassemble and clean. |
| Valves/springs damaged, misassembled, missing, stuck, or damaged. | If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage. |
| Forward Clutch Assembly | |
| Seals, piston damaged. | Inspect for damage. Repair as necessary. |
| Friction elements damaged or worn. | Inspect for damage. Repair as necessary. |
| Return springs damaged. | Inspect for damage. Repair as necessary. |
DIAGNOSTIC ROUTINES ENGAGEMENT CONCERN: HARSH FORWARD ONLY
| Possible Component | Reference/Action |
|---|---|
| 204B - ELECTRICAL ROUTINE | |
| Powertrain Control System | |
| PCM, vehicle wiring harness, turbine shaft speed (TSS) sensor. | Carry out on-board diagnostic tests. Refer to the SELF-DIAGNOSTICS - EEC-V - GASOLINE & NGV article for diagnosis and testing of the PCM. |
| Carry out Pinpoint Test E, refer to PINPOINT TEST E: TURBINE SHAFT SPEED (TSS) SENSOR AND OUTPUT SHAFT SPEED (OSS) SENSOR . | |
| Repair as required. Clear the DTCs, road test and rerun on-board diagnosis test. | |
| 304B - HYDRAULIC/MECHANICAL ROUTINE | |
| No Hydraulic/Mechanical Concerns. | |