DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 73 (Motor Generator Control System (AWD) - Diagnostic Codes (4 Of 5)) >> MOTOR GENERATOR CONTROL SYSTEM (for AWD) >> DTC P1606-00: Collision detected or Collision Sensor Connection (Open); DTC P1606-04: Collision detected or Collision Sensor Connection (Open) System Internal Failure [12/2019 - 11/2023] >> Description

DTC P1606-00: Collision detected or Collision Sensor Connection (Open); DTC P1606-04: Collision detected or Collision Sensor Connection (Open) System Internal Failure [12/2019 - 11/2023]: Description

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

When a collision occurs, the motor generator control ECU (MG ECU) built into the inverter with converter assembly receives a collision signal from the airbag sensor assembly and outputs a DTC. A collision signal is also sent to the hybrid vehicle control ECU. After detecting a collision, the hybrid vehicle control ECU shuts off the high voltage system for safety.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P1606-00 Collision detected or Collision Sensor Connection (Open) Collision detection
A block signal is received from the airbag sensor assembly.
(1 trip detection logic)
  • Airbag sensor assembly
  • Inverter with converter assembly
  • Airbag system
Does not come on Master Warning:
Comes on
P1606-04 Collision detected or Collision Sensor Connection (Open) System Internal Failure Collision detection
Multiple wiring malfunctions occur simultaneously.
(1 trip detection logic)
  • Inverter with converter assembly
  • Airbag system
Does not come on Master Warning:
Comes on

HINT: 

If P1606-00 or P1606-04 is output, the hybrid system cannot be started unless the DTCs are cleared using the GTS.

RELATED DATA LIST

DTC No. Data List
P1606-00 Airbag Status (Collision)
P1606-04