CHECK GENERATOR CONTROL ECU ASSEMBLY
The standard normal voltage between each pair of generator control ECU assembly terminals is shown in the table below. The appropriate conditions for checking each pair of terminals are also indicated. The result of checks should be compared with the standard normal voltage for that pair of terminals displayed in the Specified Condition column. The illustration above can be used as a reference to identify the generator control ECU assembly terminal locations.
Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
---|---|---|---|---|
A52-1 (ACC) - Body ground | GR - Body ground | Constant power source | Ignition switch ACC | 11 to 14 V |
A52-2 (CA3N) - A52-3 (CA3P) | SB - B | CAN communication signal |
Ignition switch off (while CAN communication stopped) |
108 to 132 Ω |
A52-5 (AM21) - Body ground | P - Body ground | Constant power source | Always | 11 to 14 V |
A52-6 (LIN1) - Body ground | G - Body ground | LIN communication signal |
Ignition switch off (while LIN communication stopped) |
10 kΩ or higher |
A52-9 (INH) - Body ground | R - Body ground | Wiper operation signal | Ignition switch ON, wiper switch HI | 11 to 14 V |