DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 108 (Hybrid Control System (2WD) - Diagnostic Codes (3 Of 7)) >> HYBRID CONTROL SYSTEM (for 2WD) >> DTC P0AA7-49: Hybrid/EV Battery Voltage Isolation Sensor Circuit Internal Electronic Failure [12/2019 - 11/2023] >> Description

DTC P0AA7-49: Hybrid/EV Battery Voltage Isolation Sensor Circuit Internal Electronic Failure [12/2019 - 11/2023]: Description

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

The hybrid vehicle control ECU monitors the insulation monitoring circuit located in the battery voltage sensor and detects malfunctions.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P0AA7-49 Hybrid/EV Battery Voltage Isolation Sensor Circuit Internal Electronic Failure Malfunction in the insulation monitoring circuit in the battery voltage sensor
(1 trip detection logic)
Battery voltage sensor Does not come on Master Warning:
Comes on
RELATED DATA LIST

DTC No. Data List
P0AA7-49 Short Wave Highest Value Level