"CHK" Message(s) Are Displayed on the Signal Check Screen.

PARK ASSIST / MONITORING: PARKING ASSIST MONITOR SYSTEM: "CHK" message(s) are displayed on the SIGNAL CHECK screen.
- "CHK" message(s) are displayed on the SIGNAL CHECK screen.

DESCRIPTION

On the SIGNAL CHECK screen, it is possible to check if the state of signals sent to the parking assist ECU is normal Diagnosis System.

HINT
* On the SIGNAL CHECK screen, "OK" (blue) is displayed for items with a normal inspection result or input state.
* On the SIGNAL CHECK screen, "CHK" (red) is displayed for items with an abnormal inspection result or input state.
* Displayed items may differ depending on vehicle specifications.

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:
* When "System initializing" is displayed on the multi-display after the battery terminal disconnected, correct the steering angle neutral point Initialization.
* Depending on the parts that are replaced or operations that are performed during vehicle inspection or maintenance, calibration of other systems as well as the parking assist monitor system may be needed Calibration.

PROCEDURE

1. CHECK DISPLAY CHECK MODE

(a) Check which items display "CHK" (red) on the SIGNAL CHECK screen.

Result:

B -- INSPECT STEERING PAD SWITCH ASSEMBLY (SIDE MONITOR MAIN SWITCH)

C -- CHECK DTC OUTPUT Parking Assist Monitor System
A -- Continue to next step.

2. CHECK POWER MIRROR CONTROL SYSTEM (POWER RETRACT MIRROR FUNCTION)

(a) Operate the mirror retract switch to check if the power retract mirror function of the outer rear view mirror assembly RH operates normally Operation Check.

Result:

B -- GO TO POWER MIRROR CONTROL SYSTEM How to Proceed With Troubleshooting

A -- CHECK DTC OUTPUT Parking Assist Monitor System

3. INSPECT STEERING PAD SWITCH ASSEMBLY (SIDE MONITOR MAIN SWITCH)

(a) Remove the steering pad switch assembly Removal.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Text in Illustration

NG -- REPLACE STEERING PAD SWITCH ASSEMBLY Removal
OK -- Continue to next step.

4. INSPECT SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY

(a) Disconnect the connectors from the steering pad switch and spiral cable.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

NOTICE:
The spiral cable is an important part of the SRS airbag system. Incorrect removal or installation of the spiral cable may prevent the airbag from deploying. Refer to the pages shown in the brackets.

HINT
* Removal Removal
* Installation Installation

Text in Illustration

NG -- REPLACE SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY Removal
OK -- Continue to next step.

5. CHECK HARNESS AND CONNECTOR (EAU)

(a) Disconnect the F40 connector from the spiral with sensor cable sub-assembly.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Text in Illustration

NG -- CHECK HARNESS AND CONNECTOR (SPIRAL CABLE - DISPLAY AND NAVIGATION MODULE DISPLAY)
OK -- Continue to next step.

6. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY)

(a) Disconnect the F54 connector from the parking assist ECU.

(b) Disconnect the F40 connector from the spiral with sensor cable sub-assembly.

Text in Illustration

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE PARKING ASSIST ECU Removal

7. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE - DISPLAY AND NAVIGATION MODULE DISPLAY)

(a) Disconnect the F40 connector from the spiral with sensor cable sub-assembly.

(b) Disconnect the G4 connector from the display and navigation module display.

Text in Illustration

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY Removal