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Home >> Toyota >> 2016 >> Highlander Hybrid Limited >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System (2GR-FXE) - Diagnostic Codes (3 Of 7) >> Hybrid Control System >> DTC P2532-772: Ignition Switch Run Position Circuit High [02/2014 - 11/2016] >> Description

DTC P2532-772: Ignition Switch Run Position Circuit High [02/2014 - 11/2016]: Description

The power source and HV CPU processors and their functions are integrated into the power management control ECU. The power source CPU and HV CPU use CAN communication to communicate with each other inside the power management control ECU. The power source CPU controls the opening and closing of the IG2 relay. The HV CPU detects that the IG2 relay is stuck ON (closed) based on relay operation information received from the power source CPU via CAN communication.

HINT: 

If DTC P2532-772 is stored, the vehicle will turn off.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P2532-772 Ignition Switch Run Position Circuit High Although the power management control ECU is sending a signal to open the IG2 relay, voltage is applied to the IG2 terminal.
Although the power switch is turned off, the HV control system is not turned off.
(1 trip detection logic)
  • Wire harness or connector
  • Semiconductor pwr integration ECU (IG2 relay)
  • Power management control ECU
Does not come on Master Warning Light:
Comes on