AWD Control Module Inspection
NOTE:
- AWD control module terminal voltage can vary depending on measuring conditions and vehicle aging, resulting in misdiagnosis. Therefore, it is necessary to perform an overall inspection of the input/output systems and AWD control module to determine which part is malfunctioning.
- With the AWD control module connector connected, measure voltage by connecting the voltmeter negative (-) lead to the body ground and positive (+) lead to each AWD control module terminal.
- Measure voltage or resistance at each AWD control module terminal using a voltmeter and an ohmmeter.
- If not as specified, replace the AWD control module. (See AWD CONTROL MODULE REMOVAL/INSTALLATION .)
Terminal Voltage List (Reference)
| Terminal | Signal | Input/output | Connected to | Measuring item | Test condition | Voltage (V)/Continuity | Inspection location in case of failure | |
|---|---|---|---|---|---|---|---|---|
| A | Differential oil temperature sensor signal | Input | Differential oil temperature sensor | Voltage | Ignition switch ON (engine off or on) | Differential oil temperature 20°C {68°F} | 3.0 |
|
| Differential oil temperature 60°C {140°F} | 1.4 | |||||||
| B | - | - | - | - | - | - | - | - |
| C | Differential oil temperature sensor GND | - | Differential oil temperature sensor | Voltage | Any condition | 1.0 or below |
|
|
| D | - | - | - | - | - | - | - | - |
| E | - | - | - | - | - | - | - | - |
| F | - | - | - | - | - | - | - | - |
| G | CAN_H | Input/output | - | This terminal is used for communication and cannot be used for malfunction determination during terminal voltage inspection. Perform a DTC inspection. | - | |||
| H | CAN_L | Input/output | - | This terminal is used for communication and cannot be used for malfunction determination during terminal voltage inspection. Perform a DTC inspection. | - | |||
| I | Power supply (Ignition switch) | Input | Ignition key | Voltage | Ignition switch ON (engine off or on) | B+ |
|
|
| Ignition switch OFF | 1.0 or below | |||||||
| J | - | - | - | - | - | - | - | - |
| K | Power supply (Main) | Input | Battery | Voltage | Any condition | B+ |
|
|
| L | - | - | - | - | - | - | - | - |
| M | - | - | - | - | - | - | - | - |
| N | Ground | - | Ground | Voltage | Any condition | 0 |
|
|
| O | AWD solenoid (+) | Output | AWD solenoid | Voltage | Ignition switch ON (engine off or on) | B+ |
|
|
| Ignition switch OFF | 1.0 or below | |||||||
| P | AWD solenoid | Output | AWD solenoid | Voltage | Ignition switch ON (engine off or on) | B+ |
|
|
| Ignition switch OFF | 1.0 or below | |||||||