Automatic transmission control system
The voltage at the contacts of the PCM module and the measurement conditions are given for the contacts of the connectors related to the automatic transmission control system. The voltage on the contacts of the PCM module and the measurement conditions for the other contacts of the connectors are described in Ch. «Engine fuel system and emission control system».
Location of pins in the PCM module connector
PCM connector a (32 pin)
contact no | Signal | Description | Measurement conditions/Contact voltage |
A7 | ATPD | AT selector switch position D input | Position D: 0V In positions other than D: About 10 V |
A9 | ATPNP | Input signal of positions P and N of the switch of the automatic transmission selector | In positions P and N: 0V In positions other than P and N: About 10 V |
A10 | SCS | Synchronization and adjustment signal | Ignition key in the ON position (II) and the diagnostic connector is not bridged: 5V Ignition key in the ON position (II) and the diagnostic connector is bridged with a special tool: 0 V |
A22 | ATPL | AT selector switch position L input | In position L: 0V In positions other than L: About 10 V |
A32 | STOPSW | Stop Lamp Switch Output | Brake pedal depressed: Battery voltage Brake pedal released: 0 V |
Connector in PCM module (25 pin)
contact no | Signal | Description | Measurement conditions/Contact voltage |
IN 1 | IGP1 | Power circuit from the main relay | Ignition key in the ON position (II): Battery voltage Ignition key OFF: 0 V |
AT 2 | PG1 | Earth | |
AT 8 | HLCLSM | PH-PL Linear Solenoid Power Supply Negative Electrode | |
AT 9 | IGP2 | Power circuit from the main relay | Ignition key in the ON position (II): Battery voltage Ignition key in position OF: 0 V |
vu | PG2 | Earth | |
B17 | HLCLSP | PH-PL Linear Solenoid Power Supply Negative Electrode | Ignition key in the ON position (II): Pulses |
B18 | SCLSM | Negative electrode of the power supply of the linear control solenoid of the starting clutch | |
IN 20 | LG1 | Earth | |
AT 21 | VBU | Redundant power supply | Constant battery voltage |
B22 | LG2 | Earth | |
B25 | SCLSP | Negative electrode of the power supply of the linear control solenoid of the starting clutch | Ignition key in the ON position (II): Pulses |
PCM connector d (16 pin)
contact no | Signal | Description | Measurement conditions/Contact voltage |
D1 | VEL | Output shaft speed sensor input | Depending on vehicle speed: Pulses When the car is stopped: 0 V |
D2 | SOLINH | Lockout solenoid control | With lock solenoid on: Battery voltage With lock solenoid off: 0 V |
D3 | SH LSM | Negative electrode of the power supply of the linear shift control solenoid | |
04 | SH LSP | Negative electrode of the power supply of the linear shift control solenoid | Ignition key in the ON position (II): Pulses |
D5 | VBSOL | Electrovalve power supply | Ignition key in the ON position (II): Battery voltage Ignition key in position OF: 0 V |
D6 | ATPR | AT selector switch position R input | In position R: 0V In positions other than R: About 10 V |
D7 | SCLSM | Output shaft speed sensor ground | |
D8 | SIND | Signal light control S | Mode switch S on and signal lamp S on: Battery voltage Signal lamp S off: 0 V |
D9 | DSW | Mode switch input D | When the mode switch is on D: 0 V With mode switch off D: About 5 V |
D10 | NDN | Driven pulley speed sensor input | In positions other than P and N: Pulses |
D11 | NDR | Drive pulley speed sensor input | In positions other than P and N: Pulses |
D12 | NDRSG | Drive pulley speed sensor ground | |
D13 | SSW | S mode switch input | S mode switch on: 0 V S mode switch off: About 5V |
D14 | DIND | Pilot light control D | The first time the ignition key is turned to the ON position (II): Battery voltage for two seconds In position D: Battery voltage |
D15 | - | Not used | - |
D16 | NDNSG | Driven pulley speed sensor ground |