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DTC    P085D-582    Gear Shift Control Module "A" Performance

DTC    P085D-599    Gear Shift Control Module "A" Performance

DTC    P0861-597    Gear Shift Control Module "A" Communication Circuit Low

DTC    P0862-598    Gear Shift Control Module "A" Communication Circuit High

for Preparation Click here


DESCRIPTION

When a signal is input from the P position switch (transmission shift main switch) or shift lever, the power management control ECU (HV CPU) transmits a P position control (PCON) signal to the transmission control ECU assembly. Based on this signal, the transmission control ECU assembly actuates the shift control actuator assembly in order to mechanically lock or unlock the counter drive gear in the hybrid vehicle transaxle assembly.
P position state (engaged or released) of the actuator assembly is sent to the power management control ECU (HV CPU) as a P position (PPOS) signal.

A248781E01


DTC No.
INF Code
DTC Detection Condition
Trouble Area
P085D
582
P position (PPOS) signal is logically inconsistent
  1. Wire harness or connector
  2. Transmission control ECU assembly
  3. Power management control ECU
599
P position (PPOS) signal malfunction (output pulse is abnormal)
P0861
597
GND short in P position (PPOS) signal circuit
P0862
598
+B short in P position (PPOS) signal circuit

WIRING DIAGRAM


C210257E10


INSPECTION PROCEDURE

1.CHECK DTC OUTPUT (TRANSMISSION CONTROL)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the power switch on (IG).

  1. Enter the following menus: Chassis / Transmission Control / DTC.

  1. Check if DTCs are output.

    Result:
    Result
    		Proceed to
    Electronic shift lever system DTCs are not output.
    		A
    Any of the following DTCs are output.
    		B


    DTC No.
    		Relevant Diagnosis
    C2309
    		Open in B+ Circuit
    C2311
    		Communication Error from HV ECU

  1. Turn the power switch off.



B
GO TO DTC CHART (ELECTRONIC SHIFT LEVER SYSTEM) (Click here)
A


2.CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - TRANSMISSION CONTROL ECU)

  1. Disconnect connector A20 from the power management control ECU.

  1. Disconnect connector A22 from the transmission control ECU assembly.

  1. Turn the power switch on (IG).



    A217103E04

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    A22-22 (PCON) - Body ground
    		Power switch on (IG)
    		Below 1 V
    A22-23 (PPOS) - Body ground
    		Power switch on (IG)
    		Below 1 V

    Text in Illustration 
    *a
    		Rear view of wire harness connector
    (to Power Management Control ECU)
    *b
    		Front view of wire harness connector
    (to Transmission Control ECU Assembly)

    NOTICE:
    Turning the power switch on (IG) with the power management control ECU connectors disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

  1. Turn the power switch off.

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

    Standard Resistance (Check for Open):
    Tester Connection
    		Switch Condition
    		Specified Condition
    A20-22 (PCON) - A22-22 (PCON)
    		Power switch off
    		Below 1 Ω
    A20-28 (PPOS) - A22-23 (PPOS)
    		Power switch off
    		Below 1 Ω

    Standard Resistance (Check for Short):
    Tester Connection
    		Switch Condition
    		Specified Condition
    A20-22 (PCON) or A22-22 (PCON) - Body ground and other terminals
    		Power switch off
    		10 kΩ or higher
    A20-28 (PPOS) or A22-23 (PPOS) - Body ground and other terminals
    		Power switch off
    		10 kΩ or higher

  1. Connect the transmission control ECU assembly connector.

  1. Connect the power management control ECU connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.CHECK POWER MANAGEMENT CONTROL ECU (PCON SIGNAL)

  1. Turn the power switch on (IG).



    A251055E01

  1. Connect an oscilloscope between the power management control ECU terminals specified in the table below, and measure the waveform.
    Item
    		Content
    Terminal
    		A20-22 (PCON) - H3-6 (E1)
    Equipment Setting
    		10V/DIV., 10ms/DIV.
    Condition
    		Power switch on (IG)

    Result:
    Result
    		Proceed to
    P position control (PCON) signal waveform appears.
    		A
    P position control (PCON) signal waveform does not appear.
    		B

    Text in Illustration 
    *a
    		Component with harness connected
    (Power Management Control ECU)

  1. Turn the power switch off.



B
REPLACE POWER MANAGEMENT CONTROL ECU (Click here)
A


4.CHECK POWER MANAGEMENT CONTROL ECU (PPOS SIGNAL)

  1. Turn the power switch on (IG).



    A251056E01

  1. Connect an oscilloscope between the power management control ECU terminals specified in the table below, and measure the waveform.
    Item
    		Content
    Terminal
    		A20-28 (PPOS) - H3-6 (E1)
    Equipment Setting
    		10V/DIV., 10ms/DIV.
    Condition
    		Power switch on (IG)

    Result:
    Result
    		Proceed to
    P position (PPOS) signal waveform appears
    		A
    P position (PPOS) signal waveform does not appear
    		B

    Text in Illustration 
    *a
    		Component with harness connected
    (Power Management Control ECU)

  1. Turn the power switch off.



B
REPLACE TRANSMISSION CONTROL ECU ASSEMBLY (Click here)
A


5.REPLACE POWER MANAGEMENT CONTROL ECU

  1. Replace the power management control ECU (Click here).


NEXT


6.CLEAR DTC

  1. Connect the intelligent tester to the DLC3.

  1. Turn the power switch on (IG).

  1. Enter the following menus: Powertrain / Hybrid Control / DTC.

  1. Read and record the DTCs and freeze frame data.

  1. Clear DTCs and freeze frame data.

  1. Turn the power switch off.


NEXT


7.CHECK DTC OUTPUT (HYBRID CONTROL)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the power switch on (IG) and leave the vehicle as it is for 10 seconds.

  1. Depress the brake pedal, move the shift lever to N and leave the vehicle as it is for 10 seconds.

  1. Push the P position switch (transmission shift main switch) and leave the vehicle as it is for 10 seconds.

  1. Enter the following menus: Powertrain / Hybrid Control / DTC.

  1. Check if DTCs are output.

    Result:
    Result
    		Proceed to
    No DTCs are output.
    		A
    P085D-582, P085D-599, P0861-597 or P0862-598 is output again.
    		B

  1. Turn the power switch off.



B
REPLACE TRANSMISSION CONTROL ECU ASSEMBLY (Click here)
A

COMPLETED