СИСТЕМА МЕХАНИЧЕСКОЙ ТРАНСМИССИИ "MULTIMODE", Diagnostic DTC:P0821

DTC Code DTC Name
P0821 Gear Lever "X" Position Circuit

DESCRIPTION

Based on the signal from the transmission shift main switch, the TCM detects whether the shift lever is in E or M. If the shift lever position switch is ON despite the shift lever being in N or R, the TCM stores this DTC.

For more details of the transmission shift main switch, refer to DTC P0820.

Click hereНажмите здесь

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate Memory
P0821 Gear Lever "X" Position Circuit

The TCM detects the following conditions simultaneously for 1.0 second:

(1-trip detection logic)

  1. Shift lever is in N or R.

  2. MSDW signal is ON.

  • Shift lock control unit assembly

    (Transmission shift main switch)

  • Short in MDSW signal circuit

  • TCM

 Does not come on Comes on DTC stored

WIRING DIAGRAM

A012GAPE01
Table 1.
*a Shift Lock Control Unit Assembly (Transmission Shift Main Switch)

PROCEDURE

  1. INSPECT SHIFT LOCK CONTROL UNIT ASSEMBLY (TRANSMISSION SHIFT MAIN SWITCH)

    1. Disconnect the shift lock control unit connector.

      A012KTUC01
      *a

      Component without harness connected

      Shift Lock Control Unit Assembly

      (Transmission Shift Main Switch)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      4 (MDSW) - 8 (GND) Shift lever in R, N or E 10 kΩ or higher
      Shift lever in M, "+" or "-" Below 1 Ω
      Result
      Proceed to
      OK
      NG
    NG

    REPLACE SHIFT LOCK CONTROL UNIT ASSEMBLY Click hereНажмите здесь

    OK

  2. CHECK HARNESS AND CONNECTOR (SHIFT LOCK CONTROL UNIT ASSEMBLY - TCM)

    1. Disconnect the TCM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E104-10 (MDSW) - E103-4 (MDSW) Always Below 1 Ω
      E104-10 (MDSW) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (SHIFT LOCK CONTROL UNIT ASSEMBLY - BODY GROUND)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E103-8 (GND) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. REPLACE TCM

    1. Replace the TCM.

      for LHD: Click here Нажмите здесь

      for RHD: Click here Нажмите здесь

      Result
      Proceed to
      NEXT
    NEXT

  5. PERFORM INITIALIZATION

    1. Perform the initialization and learning procedure.

      Click hereНажмите здесь

      Result
      Proceed to
      NEXT
    NEXT

    END