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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 113 (Hybrid Control System (2WD) - Diagnostic Codes (6 Of 7)) >> HYBRID CONTROL SYSTEM (for 2WD) >> DTC P2600-71: Motor/Generator Coolant Pump "A" Actuator Stuck; DTC P2B86-00: Coolant Pump "A" Overspeed/Air in System [12/2019 - 11/2023] >> Description

DTC P2600-71: Motor/Generator Coolant Pump "A" Actuator Stuck; DTC P2B86-00: Coolant Pump "A" Overspeed/Air in System [12/2019 - 11/2023]: Description

WARNING: This page is about a different variant/trim than selected.

Refer to the description for DTC P2600-31.

Refer to DESCRIPTION 

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P2600-71 Motor/Generator Coolant Pump "A" Actuator Stuck When the oil pump startup request signal is output and the oil pump operation has failed a certain number of times or more, after soaking for a certain amount of time, oil pump operation is confirmed to of failed.
(2 trip detection logic)
  • Oil pipe
  • Oil pump with motor assembly
  • Hybrid vehicle control ECU
  • Wire harness or connector
  • OIL PMP relay
  • OIL PMP fuse
Does not come on Master Warning:
Comes on
P2B86-00 Coolant Pump "A" Overspeed/Air in System When the oil pump startup request signal is output, overspeed is detected a certain number of times or more.
(2 trip detection logic)
  • Oil pipe
  • Oil pump with motor assembly
  • Hybrid vehicle control ECU
  • Wire harness or connector
  • OIL PMP relay
  • OIL PMP fuse
Does not come on Master Warning:
Comes on
RELATED DATA LIST

DTC No. Data List
P2600-71
  • Target Motor/Generator Cooling Oil Pump Motor Duty
  • Motor/Generator Cooling Oil Pump Motor Revolution
  • Motor/Generator Cooling Oil Pump Motor Power Relay Request
P2B86-00

HINT: 

The oil pump with motor assembly cannot be activated only with the OIL PMP relay on. It is activated after receiving the command signals (OPM1) from the hybrid vehicle control ECU.