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Home >> Toyota >> 2017 >> Mirai >> Repair and Diagnosis (Single Page) >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System - Diagnostic Codes (1 Of 6) >> Hybrid Control System >> 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 [06/2015 - 11/2018] >> Description
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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 [06/2015 - 11/2018]: Description

When a signal is input from the P position switch (integration control and panel assembly) or shift lever (transmission instrument panel shift assembly), the EV control ECU 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 FCV transaxle with motor assembly.

P position state (engaged or released) of the shift control actuator assembly is sent to the EV control ECU as a P position (PPOS) signal.

GTY557074Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate
P085D-582 Gear Shift Control Module "A" Performance P position (PPOS) signal is logically inconsistent
  • Wire harness or connector
  • Transmission control ECU assembly
  • EV control ECU
Master Warning Light:
Comes on
P085D-599 Gear Shift Control Module "A" Performance P position (PPOS) signal malfunction (output pulse is abnormal)
  • Wire harness or connector
  • Transmission control ECU assembly
  • EV control ECU
Master Warning Light:
Comes on
P0861-597 Gear Shift Control Module "A" Communication Circuit Low GND short in P position (PPOS) signal circuit
  • Wire harness or connector
  • Transmission control ECU assembly
  • EV control ECU
Master Warning Light:
Comes on
P0862-598 Gear Shift Control Module "A" Communication Circuit High +B short in P position (PPOS) signal circuit
  • Wire harness or connector
  • Transmission control ECU assembly
  • EV control ECU
Master Warning Light:
Comes on
RELATED DATA LIST

DTC No. Data List
P085D-582
  • Shift Position Status (T/M Control)
  • P Request (T/M Control)
  • T/M ECU Pulse Consecutive Error
  • T/M ECU Pulse Single Error
  • T/M Control ECU State
P085D-599
P0861-597
P0862-598