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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 127 (Electronically Controlled Brake System (HV) - Diagnostic Codes (11 Of 11), Symptom Tests & Circuit Tests) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> DTC P2530-00: Ignition Switch Run Position Malfunction [11/2023 - ] >> Description

DTC P2530-00: Ignition Switch Run Position Malfunction [11/2023 - ]: Description

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

Refer to DTC C110E-14.

Refer to DTC C110E-14: Brake Booster Motor "A" Supply Voltage Circuit Short to Ground or Open [11/2023 - ]

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Note
P2530-00 Ignition Switch Run Position Malfunction When communication with the hybrid vehicle control ECU is normal or the vehicle speed is 10 km/h (6 mph) or more, and the IG1 terminal voltage is 9.5 V or more, the IG2 terminal voltage is less than 2.8 V for 4 seconds or more.
  • Open or short in IG2 circuit
  • Improperly connected connector, deformation or corrosion of terminals
  • No. 1 skid control ECU (brake booster with master cylinder assembly)
Comes on
  • SAE Code: P2531 (Case 1)
  • Output ECU: Both skid control ECUs