Control Pilot Signal Circuit

HYBRID / BATTERY CONTROL: PLUG-IN CHARGE CONTROL SYSTEM: Control Pilot Signal Circuit
- Control Pilot Signal Circuit

DESCRIPTION

The plug-in charge control ECU assembly detects that the charging cable has been connected using the CPLT signal (control pilot signal). And then it starts the plug-in charge control system and changes the voltage of the CPLT signal (control pilot signal). Using the waveform duty ratio of the CPLT signal (control pilot signal), the plug-in charge control ECU assembly recognizes the rated amperage of a charging facility (a 120 V outlet using a charging cable) or charging station. By changing the voltage of the CPLT signal (control pilot signal), the plug-in charge control ECU assembly transmits the status that the vehicle is ready to start charging, to the charging cable (CCID unit).

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM (CPLT PULSE TIME, CPLT OUTPUT VOLTAGE)

NOTICE:
If the power switch is turned on (IG) during plug-in charging, the power switch will be turned off automatically after several tens of seconds.

(a) Using the electric vehicle charger cable assembly, plug-in charge the vehicle.

(b) Connect the Techstream to the DLC3.

(c) Turn the power switch on (IG).

(d) Enter the following menus: Powertrain / Plug-in Control / Data List / CPLT Pulse Time, CPLT Output Voltage.

(e) Read the value displayed on the Techstream.

OK:

Data List values are within the specified range.

(f) Turn the power switch off.

(g) Disconnect the electric vehicle charger cable assembly.

NG -- CHECK HARNESS AND CONNECTOR (CHARGING INLET - PLUG-IN CHARGE CONTROL ECU ASSEMBLY)

OK -- GO TO PROBLEM SYMPTOMS TABLE Problem Symptoms Table

2. CHECK HARNESS AND CONNECTOR (CHARGING INLET - PLUG-IN CHARGE CONTROL ECU ASSEMBLY)

(a) Open the charging port lid.

(b) Disconnect connector S31 from the plug-in charge control ECU assembly.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Text in Illustration

(d) Turn the power switch on (IG).

(e) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

NOTICE:
Turning the power switch on (IG) with the plug-in charge control ECU assembly connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

(f) Turn the power switch off.

(g) Connect the plug-in charge control ECU assembly connector.

(h) Close the charging port lid.

NG -- CHECK HARNESS AND CONNECTOR (ELECTRIC VEHICLE CHARGER CABLE - PLUG-IN CHARGE CONTROL ECU ASSEMBLY)
OK -- Continue to next step.

3. CHECK ELECTRIC VEHICLE CHARGER CABLE ASSEMBLY (CPLT TERMINAL VOLTAGE)

CAUTION:
Be sure to wear insulated gloves.

(a) Connect the electric vehicle charger cable assembly to a 120 V outlet.

(b) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Text in Illustration

(c) Disconnect the electric vehicle charger cable assembly from the 120 V outlet.

NG -- REPLACE ELECTRIC VEHICLE CHARGER CABLE ASSEMBLY

OK -- REPLACE PLUG-IN CHARGE CONTROL ECU ASSEMBLY Components

4. CHECK HARNESS AND CONNECTOR (ELECTRIC VEHICLE CHARGER CABLE - PLUG-IN CHARGE CONTROL ECU ASSEMBLY)

(a) Disconnect connector St1 from the electric vehicle charger cable.

(b) Disconnect connector S31 from the plug-in charge control ECU assembly.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Text in Illustration

(d) Turn the power switch on (IG).

(e) Measure the voltage according to the value(s) in the table below.

Standard Voltage: