Dtc P0812 Reverse Input Circuit. Corolla ZZE150

Трансмиссия. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150
Механическая Трансмиссия 'Multimode' C53A. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING INTELLIGENT TESTER

CHECK HARNESS AND CONNECTOR (BATTERY - BACK UP LIGHT SWITCH)

INSPECT BACK UP LIGHT SWITCH ASSEMBLY

CHECK HARNESS AND CONNECTOR (BACK UP LIGHT SWITCH - TCM)

INSPECT SHIFT STROKE SENSOR

CHECK HARNESS AND CONNECTOR (SHIFT STROKE SENSOR - TCM)

INSPECT SELECT STROKE SENSOR

CHECK HARNESS AND CONNECTOR (SELECT STROKE SENSOR - TCM)

DTC P0812 Reverse Input Circuit


DESCRIPTION

As one judgment method, the TCM uses the back up light switch signal indicating whether the gear is in reverse or not. Receiving the signals from the back up light switch assembly and the shift and select stroke sensors, the TCM detects that the transaxle gear is in reverse. If the signal from the back up light switch assembly does not match with the signal from the shift and select stroke sensors, the TCM sets the DTC.

DTC No.
DTC Detection Condition
Trouble Area
P0812
The TCM detects the following conditions simultaneously:
(1-trip detection logic)
  1. Shift and select stroke sensors send R position signal (information signal) to the TCM
  2. Back up light switch is OFF for 0.5 seconds
  1. Shift stroke sensor
  2. Select stroke sensor
  3. Back up light switch assembly
  4. Open or short in back up light switch circuit
  5. TCM
P0812
The TCM detects the following conditions simultaneously:
(1-trip detection logic)
  1. Shift and select stroke sensors do not send R position signal (information signal) to the TCM
  2. Back up light switch is ON for 0.5 seconds
  1. Shift stroke sensor
  2. Select stroke sensor
  3. Back up light switch assembly
  4. Open or short in back up light switch circuit
  5. TCM

WIRING DIAGRAM


COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Механическая Трансмиссия 'Multimode' C53A.Система Механической Трансмиссии


INSPECTION PROCEDURE

ПРИМЕЧАНИЕ:
In shift and select stroke sensors replacement, perform [Initialization and Learning] and [Synchronization Position Calibration] after installing the sensors (See page Нажмите здесь).
If the sensors are installed without performing [Initialization and Learning] and [Synchronization Position Calibration], it may cause driving performance degradation or system component breakage.
1.READ VALUE USING INTELLIGENT TESTER

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch on (IG) and the tester ON.

  1. Select the following menu items: Powertrain / Multi-Mode M/T / Data List / T/M Reverse Switch Signal and Gear Position (Current).

    Items
    [Abbreviation]
    		Measurement Items: Display
    		Normal Conditions
    		Diagnostic Notes
    T/M Reverse Switch Signal
    [T/M R SW Sig]
    		Transaxle reverse switch signal:
    Open or Gnd
    		Gnd: Transaxle gear in reverse
    Open: Other than above
    		During malfunctions, indicator shows either ON or OFF continuously, regardless of gear position
    Gear Position (Current)
    [Gear Pos-Cur]
    		Current gear position:
    Min.: 0, Max.: 7
    		Actual gear position displayed
    		0 = Neutral
    1 to 6 = 1st to 6th
    7 = Reverse
    OK:
    When the shift lever is operated, the normal condition listed above is shown on the tester.

    Result:

    Result
    		Proceed to
    NG
    		A
    OK
    		B


B
SYMPTOM SIMULATION AND DTC CHECK (Нажмите здесь)
A


2.CHECK HARNESS AND CONNECTOR (BATTERY - BACK UP LIGHT SWITCH)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Механическая Трансмиссия 'Multimode' C53A.Система Механической Трансмиссии

  1. Disconnect the back up light switch connector.

  1. Turn the ignition switch on (IG).

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

    Standard voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    B5-2 - Body ground
    		Ignition switch on (IG)
    		11 to 14 V

  1. Reconnect the back up light switch connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.INSPECT BACK UP LIGHT SWITCH ASSEMBLY


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Механическая Трансмиссия 'Multimode' C53A.Система Механической Трансмиссии

  1. Remove the back up light switch assembly.

  1. Check the resistance when the switch condition is released and pushed.

    Standard resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    1-2
    		Released
    		10 kΩ or higher
    1-2
    		Pushed
    		Below 1 Ω

  1. Reinstall the back up light switch assembly.



NG
REPLACE BACK UP LIGHT SWITCH ASSEMBLY (Нажмите здесь)
OK


4.CHECK HARNESS AND CONNECTOR (BACK UP LIGHT SWITCH - TCM)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Механическая Трансмиссия 'Multimode' C53A.Система Механической Трансмиссии

  1. Disconnect the back up light switch assembly connector.

  1. Disconnect the TCM connector.

  1. Remove the back up light bulbs.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A34-9 (RSW) - B5-1
    		Always
    		Below 1 Ω
    A34-9 (RSW) - Body ground
    		↑
    		10 kΩ or higher

  1. Turn the ignition switch on (IG).

  1. Reconnect the back up light switch assembly connector.

  1. Reconnect the TCM connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


5.INSPECT SHIFT STROKE SENSOR


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Механическая Трансмиссия 'Multimode' C53A.Система Механической Трансмиссии

  1. Remove the shift stroke sensor.

  1. Measure the voltage between the terminals of the shift stroke sensor connector (main).

    1. Prepare 3 dry cell batteries (1.5 V) and 2 leads for connecting the batteries and the sensor.

    2. Connect the batteries in series.

    3. Connect the positive battery terminal to sensor terminal 3, and the negative battery terminal to sensor terminal 2.

    4. Check the voltage between terminals 1 and 2.

      Standard voltage (combined dry cell battery voltage of 4.5 V):
      Sensor Angle
      		Terminal (1-2) Output Voltage
      55°
      		Approximately 4.05 V
      0°
      		Approximately 2.25 V
      -55°
      		Approximately 0.45 V
      Reference voltage (combined dry cell battery voltage of 5.0 +- 0.3 V):
      Sensor Angle
      		Terminal (1-2) Output Voltage
      55°
      		Approximately 4.5 V
      0°
      		Approximately 2.5 V
      -55°
      		Approximately 0.5 V


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Механическая Трансмиссия 'Multimode' C53A.Система Механической Трансмиссии

  1. Measure the voltage between the terminals of the shift stroke sensor connector (sub).

    1. Connect the positive battery terminal to sensor terminal 6, and the negative battery terminal to sensor terminal 5.

    2. Check the voltage between terminals 4 and 5.

      Standard voltage (combined dry cell battery voltage of 4.5 V):
      Sensor Angle
      		Terminal (4-5) Output Voltage
      55°
      		Approximately 4.05 V
      0°
      		Approximately 2.25 V
      -55°
      		Approximately 0.45 V
      Reference voltage (combined dry cell battery voltage of 5.0 +- 0.3 V):
      Sensor Angle
      		Terminal (4-5) Output Voltage
      55°
      		Approximately 4.5 V
      0°
      		Approximately 2.5 V
      -55°
      		Approximately 0.5 V
      ПРИМЕЧАНИЕ:
      1. Do not apply more than 6 V
      2. Do not use a sensor which has been dropped.

  1. Reinstall the shift stroke sensor (See page Нажмите здесь).

  1. Perform [Initialization and Learning] (See page Нажмите здесь) and [Synchronization Position Calibration] (See page Нажмите здесь).



NG
REPLACE SHIFT STROKE SENSOR (Нажмите здесь)
OK


6.CHECK HARNESS AND CONNECTOR (SHIFT STROKE SENSOR - TCM)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Механическая Трансмиссия 'Multimode' C53A.Система Механической Трансмиссии

  1. Disconnect the shift stroke sensor connector.

  1. Disconnect the TCM connector.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A34-30 (VCS2) - A32-6
    		Always
    		Below 1 Ω
    A34-29 (VSS2) - A32-4
    		↑
    		Below 1 Ω
    A34-28 (E2S2) - A32-5
    		↑
    		Below 1 Ω
    A34-19 (VCS1) - A32-3
    		↑
    		Below 1 Ω
    A34-18 (VSS1) - A32-1
    		↑
    		Below 1 Ω
    A34-17 (E2S1) - A32-2
    		↑
    		Below 1 Ω
    A34-30 (VCS2) - Body ground
    		↑
    		10 kΩ or higher
    A34-29 (VSS2) - Body ground
    		↑
    		10 kΩ or higher
    A34-28 (E2S2) - Body ground
    		↑
    		10 kΩ or higher
    A34-19 (VCS1) - Body ground
    		↑
    		10 kΩ or higher
    A34-18 (VSS1) - Body ground
    		↑
    		10 kΩ or higher
    A34-17 (E2S1) - Body ground
    		↑
    		10 kΩ or higher

  1. Reconnect the shift stroke sensor connector.

  1. Reconnect the TCM connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


7.INSPECT SELECT STROKE SENSOR


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Механическая Трансмиссия 'Multimode' C53A.Система Механической Трансмиссии

  1. Remove the select stroke sensor.

  1. Measure the voltage between the terminals of the select stroke sensor connector (main).

    1. Prepare 3 dry cell batteries (1.5 V) and 2 leads for connecting the batteries and the sensor.

    2. Connect the batteries in series.

    3. Connect the positive battery terminal to sensor terminal 4, and the negative battery terminal to sensor terminal 5.

    4. Check the voltage between terminals 6 and 5.

      Standard voltage (combined dry cell battery voltage of 4.5 V):
      Sensor Angle
      		Terminal (6-5) Output Voltage
      55°
      		Approximately 4.05 V
      0°
      		Approximately 2.25 V
      -55°
      		Approximately 0.45 V
      Reference voltage (combined dry cell battery voltage of 5.0 +- 0.3 V):
      Sensor Angle
      		Terminal (6-5) Output Voltage
      55°
      		Approximately 4.5 V
      0°
      		Approximately 2.5 V
      -55°
      		Approximately 0.5 V


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Механическая Трансмиссия 'Multimode' C53A.Система Механической Трансмиссии

  1. Measure the voltage between the terminals of the select stroke sensor connector (sub).

    1. Connect the positive battery terminal to sensor terminal 1, and the negative battery terminal to sensor terminal 2.

    2. Check the voltage between terminals 3 and 2.

      Standard voltage (combined dry cell battery voltage of 4.5 V):
      Sensor Angle
      		Terminal (3-2) Output Voltage
      55°
      		Approximately 4.05 V
      0°
      		Approximately 2.25 V
      -55°
      		Approximately 0.45 V
      Reference voltage (combined dry cell battery voltage of 5.0 +- 0.3 V):
      Sensor Angle
      		Terminal (3-2) Output Voltage
      55°
      		Approximately 4.5 V
      0°
      		Approximately 2.5 V
      -55°
      		Approximately 0.5 V
      ПРИМЕЧАНИЕ:
      1. Do not apply more than 6 V
      2. Do not use a sensor which has been dropped.

  1. Reinstall the select stroke sensor (See page Нажмите здесь).

  1. Perform [Initialization and Learning] (See page Нажмите здесь) and [Synchronization Position Calibration] (See page Нажмите здесь).



NG
REPLACE SELECT STROKE SENSOR (Нажмите здесь)
OK


8.CHECK HARNESS AND CONNECTOR (SELECT STROKE SENSOR - TCM)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Механическая Трансмиссия 'Multimode' C53A.Система Механической Трансмиссии

  1. Disconnect the select stroke sensor connector.

  1. Disconnect the TCM connector.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A34-31 (VCL2) - A33-1
    		Always
    		Below 1 Ω
    A34-32 (VSL2) - A33-3
    		↑
    		Below 1 Ω
    A34-24 (E2L2) - A33-2
    		↑
    		Below 1 Ω
    A34-20 (VCL1) - A33-4
    		↑
    		Below 1 Ω
    A34-21 (VSL1) - A33-6
    		↑
    		Below 1 Ω
    A34-22 (E2L1) - A33-5
    		↑
    		Below 1 Ω
    A34-31 (VCL2) - Body ground
    		↑
    		10 kΩ or higher
    A34-32 (VSL2) - Body ground
    		↑
    		10 kΩ or higher
    A34-24 (E2L2) - Body ground
    		↑
    		10 kΩ or higher
    A34-20 (VCL1) - Body ground
    		↑
    		10 kΩ or higher
    A34-21 (VSL1) - Body ground
    		↑
    		10 kΩ or higher
    A34-22 (E2L1) - Body ground
    		↑
    		10 kΩ or higher

  1. Reconnect the select stroke sensor connector.

  1. Reconnect the TCM connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE TCM (Нажмите здесь)