Pinpoint Tests - OSC Equipped Vehicle: Notes
| Illustration | Tool Name | Tool Number |
|---|---|---|
| MLP-TR Cable | 418-F107 (007-00111) or equivalent | |
| Vehicle Communication Module (VCM) and Integrated Diagnostic System (IDS) software with appropriate hardware, or equivalent scan tool | ||
| Transmission Tester | 007-00130 or equivalent | |
| Trans Tester TR/MLP and Manual Overlay | 007-00131 or equivalent | |
| 73 III Automotive Meter | 105-R0057 or equivalent | |
| Gauge, Transmission Solenoid Connectors | 307-426 |
Any time an electrical connector or solenoid body is disconnected, inspect the connector for pin condition, corrosion and contamination. Also inspect the connector seal for damage. Clean, repair or install a new connector or component as required.
Shift Solenoids Pre-Diagnosis - Use the following shift solenoid operation information when carrying out Pinpoint Test A.
| Selector Lever Position | PCM Commanded Gear | Transmission Shift Solenoids | ||
|---|---|---|---|---|
| SSA | SSB | TCC | ||
| P/R/N | 1 | ON | OFF | HD |
| Overdrive (Circle D) | 1 | ON | OFF | HD |
| Overdrive (Circle D) | 2 | OFF | OFF | EC |
| Overdrive (Circle D) | 3 | OFF | ON | EC |
| Overdrive (Circle D) | 4 | ON | ON | EC |
| Overdrive (Circle D) | ||||
| w/OD OFF | ||||
| 1 | 1 | ON | OFF | HD |
| 2 | 2 | OFF | OFF | EC |
| 3 | 3 | OFF | ON | EC |
| Manual 2 | 2 | OFF | OFF | EC |
| Manual 1 | 1 | ON | OFF | HD |
| 1a | 2 | OFF | OFF | EC |
| EC = Electronically controlled. HD = Hydraulically disabled. |
||||
a When a manual pull-in occurs above a calibrated speed the transmission will downshift from the higher gear until the vehicle speed drops below this calibrated speed.
Shift Solenoid Failure Mode Chart "Always Off" - Failed off due to PCM and or vehicle wiring concerns, shift solenoid electrically or hydraulically stuck off.
| SSA ALWAYS OFF: | Selector Lever Position | ||
|---|---|---|---|
| Overdrive (Circle D) | 2 | 1 | |
| PCM Gear Commanded |
Actual Gear Obtained |
||
| 1 | 2 | 2 | 2 |
| 2 | 2 | 2 | 2 |
| 3 | 3 | 2* | 2* |
| 4 | 3 | 2* | 2* |
| *No engine braking. | |||
| SSB ALWAYS OFF: | Selector Lever Position | ||
|---|---|---|---|
| Overdrive (Circle D) | 2 | 1 | |
| PCM Gear Commanded |
Actual Gear Obtained |
||
| 1 | 1 | 1 | 1 |
| 2 | 2 | 2 | 2 |
| 3 | 2 | 2 | 2 |
| 4 | 1 | 1 | 1 |
Shift Solenoid Failure Mode Chart "Always On" - Failed on due to powertrain control module and or vehicle wiring concerns, shift solenoid electrically or hydraulically stuck on.
| SSA ALWAYS ON: | Selector Lever Position | ||
|---|---|---|---|
| Overdrive (Circle D) | 2 | 1 | |
| PCM Gear Commanded |
Actual Gear Obtained |
||
| 1 | 1 | 1 | 1 |
| 2 | 1 | 1 | 1 |
| 3 | 4 | 2* | 2* |
| 4 | 4 | 2* | 2* |
| *No engine braking. | |||
| SSB ALWAYS ON: | Selector Lever Position | ||
|---|---|---|---|
| Overdrive (Circle D) | 2 | 1 | |
| PCM Gear Commanded |
Actual Gear Obtained |
||
| 1 | 4 | 2* | 2* |
| 2 | 3 | 2* | 2* |
| 3 | 3 | 2* | 2* |
| 4 | 4 | 2* | 2* |
| *No engine braking. | |||