Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM1000000026PW1
Model Year Start: 2023 Model: Corolla HV Prod Date Range: [09/2022 -           ]
Title: HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY with PA10): P160600,P160604; Collision detected or Collision Sensor Connection (Open); 2023 - 2025 MY Corolla HV [09/2022 -        ]

DTC

P160600

Collision detected or Collision Sensor Connection (Open)

DTC

P160604

Collision detected or Collision Sensor Connection (Open) System Internal Failure

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

Note

P160600

Collision 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:

Comes on

SAE Code:

P1606

P160604

Collision detected or Collision Sensor Connection (Open) System Internal Failure

Collision detection

Multiple wiring malfunctions occur simultaneously.

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

Does not come on

Master Warning:

Comes on

SAE Code:

P1606

HINT:

If P160600 or P160604 is output, the hybrid system cannot be started unless the DTCs are cleared using the GTS.

CONFIRMATION DRIVING PATTERN

HINT:

After repairs have been completed, clear the DTCs and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

Click here 2023 - 2025 MY Corolla HV [09/2022 -        ]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for LITHIUM-ION BATTERY with PA10): UTILITY

  1. Connect the GTS to the DLC3.
  2. Turn the ignition switch to ON and turn the GTS on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  4. Turn the ignition switch off and wait for 30 seconds or more.
  5. With ignition switch to ON (READY) and wait for 30 seconds or more.
  6. Turn the ignition switch off and wait for 30 seconds or more.
  7. Enter the following menus: Powertrain / Hybrid Control / Utility / All Readiness.
  8. Check the DTC judgment result.

    HINT:

    • If the judgment result shows NORMAL, the system is normal.
    • If the judgment result shows ABNORMAL, the system has a malfunction.
    • If the judgment result shows INCOMPLETE or N/A, perform driving pattern again.

CAUTION / NOTICE / HINT

HINT:

P160600 or P160604 may be output as a result of the malfunction indicated by the DTCs in table below.

Malfunction Content

Relevant DTC

Microcomputer malfunction

P060647

Hybrid/EV Powertrain Control Module Processor Watchdog / Safety MCU Failure

P060687

Hybrid/EV Powertrain Control Module Processor to Monitoring Processor Missing Message

P060A29

Hybrid/EV Powertrain Control Module Monitoring Processor Signal Invalid

P060A44

Hybrid/EV Powertrain Control Module Monitoring Processor Data Memory Failure

P060A45

Hybrid/EV Powertrain Control Module Monitoring Processor Program Memory Failure

P060A47

Hybrid/EV Powertrain Control Module Monitoring Processor Watchdog / Safety MCU Failure

P060A49

Hybrid/EV Powertrain Control Module Monitoring Processor Internal Electronic Failure

P060A87

Hybrid/EV Powertrain Control Module Processor from Monitoring Processor Missing Message

P060B1C

Hybrid/EV Powertrain Control Module A/D Processing Voltage Out of Range

P060B49

Hybrid/EV Powertrain Control Module A/D Processing Internal Electronic Failure

P060B71

Hybrid/EV Powertrain Control Module A/D Processing Actuator Stuck

P06881F

ECM/PCM Power Relay Sense Circuit Intermittent

P1C9E9F

Hybrid/EV System Reset Stuck Off

P1CE31C

Hybrid/EV Powertrain Control Module Monitoring Processor A/D Processing Voltage Out of Range

P1CE349

Hybrid/EV Powertrain Control Module Monitoring Processor A/D Processing Internal Electronic Failure

P1CE371

Hybrid/EV Powertrain Control Module Monitoring Processor A/D Processing Actuator Stuck

PROCEDURE

1.

CHECK VEHICLE FOR COLLISION DAMAGE

(a) Check the vehicle condition.

Result

Proceed to

The vehicle is not damaged

A

The vehicle is damaged

B
B

REPAIR VEHICLE
A

2.

CHECK DTC OUTPUT (HYBRID CONTROL)

(a) Check for DTCs.

Powertrain > Hybrid Control > Trouble Codes

Result

Proceed to

P160600 is output

A

P160604 is output

B
B

GO TO STEP 5

A

3.

CLEAR DTC

(a) Turn the ignition switch to ON and wait for 10 seconds or more.

(b) Clear the DTCs.

Powertrain > Hybrid Control > Clear DTCs

(c) Turn the ignition switch off and wait for 2 minutes or more.

NEXT

4.

CHECK DTC OUTPUT (HEALTH CHECK)

(a) Turn the ignition switch to ON and wait for 10 seconds or more.

(b) Enter the following menus: System Select / Health Check.

Result

Proceed to

P160600 is output

A

DTCs except P160600 are output

B

(c) Turn the ignition switch off.

A

CHECK AIRBAG SYSTEM 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for TMC Made): HOW TO PROCEED WITH TROUBLESHOOTING 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: HOW TO CONNECT OR DISCONNECT AIRBAG CONNECTOR

B

GO TO DTC CHART

5.

CHECK DTC OUTPUT (HYBRID CONTROL, MOTOR GENERATOR CONTROL)

(a) Check for DTCs.

Powertrain > Hybrid Control > Trouble Codes

Powertrain > Motor Generator > Trouble Codes

Result

Proceed to

DTCs of hybrid control system in the table below are output.

A

DTCs of motor generator control system in the table below are output.

B

System

Relevant DTC

Hybrid control system

P310711

Lost Communication with Airbag System Control Module Circuit Short to Ground

P310715

Lost Communication with Airbag System Control Module Circuit Short to Auxiliary Battery or Open

U015187

Lost Communication with Restraints Control Module Missing Message

Motor generator control system

U11B387

Lost Communication with Hybrid/EV Powertrain Control Module (ch5) Missing Message
A

GO TO DTC CHART (HYBRID CONTROL SYSTEM)
B

GO TO DTC CHART (MOTOR GENERATOR CONTROL SYSTEM)