Monitoring Procedure
WARNING: This page is about a different car, the 2008 Suzuki Grand Vitara and 2007 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.
TCM calculates the actual transmission gear ratio from input and output speed sensor signals and monitor it.
TCM detects a trouble when the actual transmission gear ratio is not equal to the ratio of each gear as commanded by TCM.
OPERATION REFERENCE
| DTC | P0797 |
| Monitor execution | Continuous |
| Monitor duration | 0.4 seconds (each gear) |
ENABLE CONDITIONS
| Parameter | Minimum | Maximum |
|---|---|---|
| Battery voltage | 10.5 V | - |
| Engine speed | 400 rpm | - |
| Engine coolant temperature | 40°C (104°F) | - |
| Vehicle speed | 2 km/h (1.24 mph) | - |
| Absolute pedal position | - | - |
| Transmission fluid temperature | 10°C (50°F) | - |
| 4WD low switch | OFF | |
| Output gear position (P0797) | 4th and 5th | |
| Shift position | "D" | |
| Output shaft speed sensor | Normal condition or not monitored | |
| Input shaft speed sensor | Normal condition or not monitored | |
| Shift solenoid A, B and C | Normal condition or not monitored | |
| Pressure control solenoid B and C | Normal condition or not monitored | |
| CAN communication (U0073), (U0100) | Normal condition or not monitored | |
TYPICAL MALFUNCTION THRESHOLDS
| P0797 |
| Actual gear ratio (Input speed / Output speed): 0.93 - 1.07 (output gear position 4th), Neutral gear position (output gear position 5th) |