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Home >> Lexus >> 2009 >> GS 450h >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Vehicle Control (Diagnostic Codes (P0AE6-225 - U0424-537)) >> Hybrid Control System >> DTC P2532-772: Ignition Switch Run Position Circuit High >> Description

DTC P2532-772: Ignition Switch Run Position Circuit High: Description

The hybrid vehicle control ECU monitors IGSW signals sent from the power source control ECU and detects a malfunction.

DTC No. INF Code DTC Detection Condition Trouble Area
P2532 772 When communication from the ECUs that are connected to terminal IG1 of the power source control ECU is interrupted, the power source voltage is still applied to terminal IGSW.
  • Wire harness or connector
  • IG2 relay
  • Power source control ECU
  • Hybrid vehicle control ECU
  • Stop lamp switch assembly

HINT: 

If DTC P2532-772 is detected, it will be possible to turn the vehicle off.