Lexus NX manuals

Lexus NX: Collision has been detected or Collision Sensor Connection (Open) (P1606-308,P1606-317)

Lexus NX Service Manual / Engine & Hybrid System / 2ar-fxe (hybrid / Battery Control) / Hybrid Control System / Collision has been detected or Collision Sensor Connection (Open) (P1606-308,P1606-317)

DTC SUMMARY

MALFUNCTION DESCRIPTION

The hybrid vehicle control ECU and airbag ECU detect that a collision has occurred and shut off the system main relay.

The cause of this DTC may be one of the following:

  • Collision is detected
  • Detection sensor system malfunction
    • Airbag system malfunction
    • Hybrid vehicle control ECU malfunction
    • Communication malfunction between airbag ECU and hybrid vehicle control ECU
    • Hybrid vehicle control ECU communication malfunction

DESCRIPTION

The hybrid vehicle control ECU receives a signal that indicates a collision from the airbag ECU assembly to detect a collision. After detecting a collision, the hybrid vehicle control ECU shuts off the high voltage systems for safety.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Warning Indicate

P1606-308

Collision has been detected or Collision Sensor Connection (Open)

Collision detection

A block signal is received from the airbag ECU assembly.

(1 trip detection logic)
  • Airbag ECU assembly
  • Hybrid vehicle control ECU
  • Airbag system

Does not come on

Master Warning Light:

Comes on

P1606-317

Collision has been detected or Collision Sensor Connection (Open)

Collision detection

Multiple wiring malfunctions occur simultaneously.

(1 trip detection logic)
  • Hybrid vehicle control ECU
  • Airbag system

Does not come on

Master Warning Light:

Comes on

HINT:

If P1606-308 or 317 is output, the hybrid system cannot be started unless the DTCs are cleared using the Techstream.

Related Data List

DTC No.

Data List

P1606-308
  • Collision Signal (Airbag)
  • Normal Signal for A/B ECU

P1606-317

CAUTION / NOTICE / HINT

HINT:

After the repair, clear the DTCs and perform the following procedure to check that DTCs are not output.

  1. Turn the power switch on (IG) and wait for 5 seconds or more.

PROCEDURE

1.

CHECK VEHICLE FOR COLLISION DAMAGE

(a) Check the vehicle condition.

The vehicle is damaged.

REPAIR VEHICLE
The vehicle is not damaged.

2.

CHECK DTC OUTPUT (HYBRID CONTROL)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

(d) Check for DTCs.

Powertrain > Hybrid Control > Trouble Codes

(e) Turn the power switch off.

P0A1D is output at the same time

GO TO DTC CHART (P0A1D)

Other than above

3.

CHECK INFORMATION CODE (HYBRID CONTROL)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

(d) Access the freeze frame data of DTC P1606 and read the INF code.

(e) Turn the power switch off.

INF code 308 is output.

CHECK AIRBAG SYSTEM

INF code 317 is output.

4.

CHECK DTC OUTPUT (HYBRID CONTROL)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

(d) Check for DTCs.

Powertrain > Hybrid Control > Trouble Codes

Result

Proceed to

P3107-213, P3107-214, U0151-763, U0110-160 or U0110-657 is output at the same time.

NEXT

(e) Turn the power switch off.

NEXT

GO TO DTC CHART (HYBRID CONTROL SYSTEM)

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