DTC P1606-308 Collision Detection: Description

WARNING: This page is about a different car, the 2006 Lexus RX 400h. However, it is still accessible from the selected car via links, so may be relevant.

The HV control ECU receives collision signals from the airbag sensor assembly CTR, circuit breaker sensor (front collision sensor), circuit breaker sensor RR RH (rear collision sensor right), and circuit breaker sensor RR LH (rear collision sensor left) to detect the destruction of the vehicle. After detecting the destruction of the vehicle, the HV control ECU shuts off the high-voltage systems for safety.

DTC DETECTION CONDITION - TROUBLE AREA CHART

DTC No.	INF Code	DTC Detection Condition	Trouble Area
P1606	308	Shutoff signal from the airbag sensor assembly CTR is determined Collision is determined by the signal from the circuit breaker sensor (front collision sensor) Collision is determined by the signal from the rear circuit breaker sensor RH (rear collision sensor right) Collision is determined by the signal from the rear circuit breaker sensor LH (rear collision sensor left)	Center airbag sensor assembly Circuit breaker sensor Rear circuit breaker sensor RH Rear circuit breaker sensor LH Destruction of the vehicle