VTM-4 Control Unit Inputs and Outputs
WARNING: This page is about a different car, the 2011 Honda Pilot, 2010 Honda Pilot, and 2009 Honda Pilot. However, it is still accessible from the selected car via links, so may be relevant.
The VTM-4 control unit terminal voltages and the measuring conditions for the VTM-4 control system are shown.
Do the VTM-4 inputs and outputs test with the VTM-4 connectors connected.
CONNECTOR TERMINALS DESCRIPTION TABLE
| Terminal number | Wire color | Signal | Description | Measuring Conditions/Terminal Voltage |
|---|---|---|---|---|
| A1 | GRN | IG1 | Power supply for VTM-4 control unit | With ignition switch ON (II): battery voltage |
| A4 | ORN/GRN | FSR | Drives VTM-4 relay | With ignition switch ON (II): battery voltage With engine running: about 0 V |
| A6 | BLK/YEL | PBRK | Detects parking brake signal | With parking brake switch on: less than 2.0 V With parking brake switch off: battery voltage |
| A8 | BRN/WHT | LCK SW | Detects VTM-4 lock switch signal | With ignition switch ON (II): about 0 V With VTM-4 lock switch pressed: battery voltage |
| A10 | BLK | LG1 | Unit ground | With ignition switch ON (II): about 0 V |
| A11 | WHT | CANH | F-CAN communication signal | With ignition switch ON (II): about 2.5 V to 3.5 V |
| A12 | YEL | NEP | Detects engine speed pulse | With ignition switch ON (II): about 8.0 V With engine running at 1,000 RPM: about 5.0 V to 8.0 V |
| A13 | BLK | TOL | Detects rear differential fluid temperature sensor signal | With ignition switch ON (II): about 1.0 V to 3.7 V (Depending on ATF temperature) |
| A14 | PNK | WL1 | Drives VTM-4 indicator | With VTM-4 indicator on: less than 4.0 V With VTM-4 indicator off: battery voltage |
| A15 | WHT | TOH | Power supply for differential fluid temperature sensor | With ignition switch ON (II): about 4.7 V to 5.0 V |
| A16 | YEL/BLK | LCKL | Drives VTM-4 LOCK indicator | With VTM-4 LOCK indicator on: less than 4.0 V With VTM-4 LOCK indicator off: battery voltage |
| A18 | LT BLU | K-LINE | Communication line VTM-4 control unit to DLC | With ignition switch ON (II): about 8.0 V to 12.0 V |
| A20 | BRN | SCS | Detects service check signal | With SCS circuit shorted: less than 2.0 V With SCS circuit opened: about 5.0 V |
| A22 | RED | CANL | F-CAN communication signal | With ignition switch ON (II): about 2.5 V to 1.5 V |
The VTM-4 control unit terminal voltages and the measuring conditions for the VTM-4 control system are shown.
Do the VTM-4 inputs and outputs test with the VTM-4 connectors connected.
CONNECTOR TERMINALS DESCRIPTION TABLE
| Terminal number | Wire color | Signal | Description | Measuring Conditions/Terminal Voltage |
|---|---|---|---|---|
| B1 | WHT | LCH | Drives left clutch electromagnetic coil (positive) | With ignition switch ON (II): about 0 V With VTM-4 lock mode: battery voltage |
| B2 | RED | LCL | Drives left clutch electromagnetic coil (negative) | With ignition switch ON (II): about 0 V |
| B3 | PNK | RCH | Drives right clutch electromagnetic coil (positive) | With ignition switch ON (II): about 0 V With VTM-4 lock mode: battery voltage |
| B4 | BLU | RCL | Drives right clutch electromagnetic coil (negative) | With ignition switch ON (II): about 0 V |
| B5 | BLK | PG | Actuator ground | With ignition switch ON (II): about 0 V |
| B7 | RED/BLU | PWR | Power supply for VTM-4 actuator | With engine running: battery voltage |
| B11 | PNK | WL2 | Drives VTM-4 indicator | With VTM-4 indicator on: less than 4.0 V With VTM-4 indicator off: battery voltage |
| B12 | BLK | LG2 | Unit ground | With ignition switch ON (II): about 0 V |