P1606-308

L110 HYBRID VEHICLE CONTROL: HYBRID CONTROL SYSTEM: P1606-308: Collision Detection

DTC P1606-308 - Collision Detection

DTC P1606-317 - Collision Detection

DESCRIPTION

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





HINT: If P1608-308 or 317 is output, the vehicle cannot start unless the DTCs are cleared using the Techstream.

INSPECTION PROCEDURE
CAUTION:
- Before inspecting the high-voltage system or disconnecting the low voltage connector of the inverter with converter assembly, take safety precautions such as wearing insulated gloves and removing the service plug grip to prevent electrical shocks. After removing the service plug grip, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.
- After disconnecting the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals. After waiting, check the voltage at the inspection point in the inverter with converter assembly. The voltage should be 0 V before beginning work.
HINT: Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

PROCEDURE

1. CHECK VEHICLE FOR COLLISION DAMAGE
(a) Check the vehicle condition.
Result:
The vehicle is damaged.
YES -- REPAIR VEHICLE
NO -- Continue to next step.
2. CHECK DTC OUTPUT (HV)
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
(d) Check if DTCs are output.
Result:






A -- GO TO INSPECTION PROCEDURE RELEVANT TO OUTPUT DTC (P0A1D)
B -- Continue to next step.
3. CHECK SUPPLEMENTAL RESTRAINT SYSTEM
(a) Troubleshoot the airbag system.
Result:
There is a malfunction.
YES -- REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA
NO -- Continue to next step.
4. CHECK INFORMATION CODE
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
(d) Check if DTCs are output.
(e) Access the freeze frame data corresponding to DTC P1606 and select the information.
Result:






B -- CHECK DTC OUTPUT (HV)
A -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY
5. CHECK DTC OUTPUT (HV)
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
(d) Check if DTCs are output.
Result:
DTC U0151-763 is output.
YES -- GO TO DTC CHART
NO -- REPLACE HYBRID VEHICLE CONTROL ECU