DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 50 (Engine Control System (A25A-FXS) - Diagnostic Codes (P0400-P0450)) >> SFI System >> DTC P0403-18: Exhaust Gas Recirculation "A" Circuit Current Below Threshold; DTC P0403-19: Exhaust Gas Recirculation "A" Circuit Current Above Threshold; DTC P1400-18: Exhaust Gas Recirculation "A" Control Circuit 2 Circuit Current Below Threshold; DTC P1400-19: Exhaust Gas Recirculation "A" Control Circuit 2 Circuit Current Above Threshold [10/2022 - 11/2023] >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

WARNING: This page is about a different variant/trim than selected.
P0489: EGR A CIRCUIT RANGE CHECK (LOW VOLTAGE)

Either of the following conditions is met -
Motor phase A positive terminal voltage detected by motor driver IC 0.2 V or less
Motor phase A negative terminal voltage detected by motor driver IC 0.2 V or less
P0489: EGR B CIRCUIT RANGE CHECK (LOW VOLTAGE)

Either of the following conditions is met -
Motor phase B positive terminal voltage detected by motor driver IC 0.2 V or less
Motor phase B negative terminal voltage detected by motor driver IC 0.2 V or less
P0490: EGR A CIRCUIT RANGE CHECK (HIGH CURRENT)

One of the following conditions is met -
Motor phase A positive terminal current detected by motor driver IC 1.2 A or more
Motor driver MOSFET temperature for motor phase A positive terminal detected by motor driver IC 150°C (302°F) or higher
Motor phase A negative terminal current detected by motor driver IC 1.2 A or more
Motor driver MOSFET temperature for motor phase A negative terminal detected by motor driver IC 150°C (302°F) or higher
P0490: EGR B CIRCUIT RANGE CHECK (HIGH CURRENT)

One of the following conditions is met -
Motor phase B positive terminal current detected by motor driver IC 1.2 A or more
Motor driver MOSFET temperature for motor phase B positive terminal detected by motor driver IC 150°C (302°F) or higher
Motor phase B negative terminal current detected by motor driver IC 1.2 A or more
Motor driver MOSFET temperature for motor phase B negative terminal detected by motor driver IC 150°C (302°F) or higher