On-board Diagnostics System: Function
The on-board diagnostics system detects and stores in the form of a code a fault that has occurred in any of the following input and output signal systems.
| Rear vehicle speed sensor | High clutch duty solenoid | Sports shift switch |
| Front vehicle speed sensor | Low & reverse duty solenoid | Engine speed signal |
| Throttle position sensor | Transfer duty solenoid | Lockup clutch |
| Line pressure linear solenoid | ATF temperature sensor | Torque converter turbine speed sensor |
| 2-4 brake duty solenoid | CAN communication signal circuit | 1, 2, 3, 4, R gear ratios |
| Lockup duty solenoid | Inhibitor switch | Shift lock solenoid |
| Low clutch duty solenoid | Brake switch |
If a fault has been detected, the system tells the fault by causing the SPORT indicator light to blink.