Multiplex Communication System
TERMINALS OF ECUTerminals Of Control Module - Multiplex Network Body ECU:
1. MULTIPLEX NETWORK BODY ECU
a. Check the body ECU.
1. Disconnect the body ECU connectors B9 and B12.
2. Check the voltage or continuity of each terminal of the vehicle's side connectors.
HINT: If the value is not as specified, the vehicle's side may be defective.
Terminals Of Control Module - Power Window Regulator Master Switch Assy (Door ECU):
2. POWER WINDOW REGULATOR MASTER SWITCH ASSY (DOOR ECU)
a. Check the master switch.
1. Disconnect the master switch connector.
2. Check the voltage or continuity of each terminal of the vehicle's side connector.
HINT: If the value is not as specified, the vehicle's side may be defective.
Terminals Of Control Module - Combination Meter Assy (Meter ECU):
3. COMBINATION METER ASSY (METER ECU)
a. Check the meter.
1. Disconnect the meter connector C11.
2. Check the voltage or continuity of each terminal of the vehicle's side connector.
HINT: If the value is not as specified, the vehicle's side may be defective.
Terminals Of Control Module - Air Conditioner Amplifier Assy (A/C ECU):
4. AIR CONDITIONER AMPLIFIER ASSY (A/C ECU)
a. Check the air conditioner amplifier.
1. Disconnect the air conditioner amplifier connector A10.
2. Check the voltage or continuity of each terminal of the vehicle's side connector.
HINT: If the value is not as specified, the vehicle's side may be defective.
Terminals Of Control Module/pinouts - Theft Warning ECU Assy (Theft Deterrent ECU):
5. THEFT WARNING ECU ASSY (THEFT DETERRENT ECU)
a. Check the theft warning ECU.
1. Disconnect the connector.
2. Check the voltage or continuity of each terminal of the vehicle's side connector.
Terminals Of Control Module/pinouts - ECM:
6. ECM
a. Inspect the ECM operation.
1. Check the voltage or continuity of each terminal of the vehicle's side connectors.
NOTE:
- The inspection should be started from the back side of the connector with the ECM connector being connected.
- Before the measurement, check the power source voltage (10 - 14 V when IG ON) and body ground (5 Ohm or less between each ground terminal and the engine body, when IG OFF).
Terminals Of Control Module - Solid Roof Drive Gear Sub-Assy (Sliding Roof ECU):
7. SLIDING ROOF DRIVE GEAR SUB-ASSY (SLIDING ROOF ECU)
a. Check the sliding roof ECU.
1. Disconnect the sliding roof ECU connector.
2. Check the voltage or continuity between each terminal of the vehicle's side connectors.