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Home >> Toyota >> 2006 >> Prius >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> P112 Hybrid Vehicle Control - DTC P0A94 - P3226, U0100 - U0146 >> DTC P3102-524 Transmission Control ECU Malfunction; DTC P3102-525 Transmission Control ECU Malfunction; DTC P3102-581 Transmission Control ECU Malfunction; DTC P3102-582 Transmission Control ECU Malfunction; DTC P3102-597 Transmission Control ECU Malfunction; DTC P3102-598 Transmission Control ECU Malfunction; DTC P3102-599 Transmission Control ECU Malfunction >> Description

DTC P3102-524 Transmission Control ECU Malfunction; DTC P3102-525 Transmission Control ECU Malfunction; DTC P3102-581 Transmission Control ECU Malfunction; DTC P3102-582 Transmission Control ECU Malfunction; DTC P3102-597 Transmission Control ECU Malfunction; DTC P3102-598 Transmission Control ECU Malfunction; DTC P3102-599 Transmission Control ECU Malfunction: Description

When a signal is input from the P position switch or selector lever, the HV 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 in order to mechanically lock or unlock the counter drive gear in the HV transaxle assembly. If the shift control actuator is in the P position, the transmission control ECU assembly transmits a P position (PPOS) signal to the HV control ECU.

Fig 1: Communication Diagram Between HV Control ECU And HV Transaxle Assembly
G04473670Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
DTC DETECTION CONDITION AND TROUBLE AREA

DTC No. INF Code DTC Detection Condition Trouble Area
P3102 524 BEAN communication problem of transmission control ECU assembly
  • Wire harness or connector
  • Transmission control ECU assembly
  • HV control ECU
  • Power source control ECU
P3102 525 Transmission control ECU IG OFF command malfunction
  • Wire harness or connector
  • Transmission control ECU assembly
  • HV control ECU
  • Power source control ECU
P3102 581 Transmission control ECU malfunction
  • Wire harness or connector
  • Transmission control ECU assembly
  • HV control ECU
  • Power source control ECU
P3102 582 P position (PPOS) signal is logically inconsistent
  • Wire harness or connector
  • Transmission control ECU assembly
  • HV control ECU
  • Power source control ECU
P3102 597 GND short in P position (PPOS) signal circuit
  • Wire harness or connector
  • Transmission control ECU assembly
  • HV control ECU
  • Power source control ECU
P3102 598 +B short in P position (PPOS) signal circuit
  • Wire harness or connector
  • Transmission control ECU assembly
  • HV control ECU
  • Power source control ECU
P3102 599 P position (PPOS) signal malfunction (output pulse is abnormal)
  • Wire harness or connector
  • Transmission control ECU assembly
  • HV control ECU
  • Power source control ECU