DTC Troubleshooting: P0564-15

DTC P0564-15: ACC/LKAS Switch Signal Circuit Open

NOTE:

	Before you troubleshoot, review the general troubleshooting information.
	The functions of the integrated driver support system that will be temporarily canceled when this DTC is recorded can be confirmed with the DTC troubleshooting index.

DTC Description	DTC
P0564-15 ACC/LKAS Switch Signal Circuit Open

Problem verification:

Problem verification

?1.	Turn the vehicle to the ON mode.

?2.	Clear the DTC with the HDS.

?3.	Turn the vehicle to the OFF (LOCK) mode.

?4.	Turn the vehicle to the ON mode, then wait for at least 6 seconds.

?5.

Check for DTCs with the HDS.

DTC Description	DTC
P0564-15 ACC/LKAS Switch Signal Circuit Open

Is DTC P0564-15 indicated?


	YES

The failure is duplicated. Go to step 2.


	NO

Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting.?

Open wire check (LKAS/DIST line) 1:

Open wire check (LKAS/DIST line) 1

?1.	Turn the vehicle to the OFF (LOCK) mode.

?2.

Disconnect the following connector.

ACC combination switch 12P connector

?3.	Turn the vehicle to the ON mode.

?4.

Measure the voltage between test points 1 and 2.

Test condition	Vehicle ON mode
	ACC combination switch 12P connector: disconnected
Test point 1	ACC combination switch 12P connector (female terminals) No. 12:
Test point 2	Body ground

Is there about 5 V?


	YES

Go to step 3.


	NO

Go to step 7.

Determine possible failure area (ACC combination switch, CRUISE GND line):

Determine possible failure area (ACC combination switch, CRUISE GND line)

?1.

Measure the voltage between test points 1 and 2.

Test condition	Vehicle ON mode
	ACC combination switch 12P connector: disconnected
Test point 1	ACC combination switch 12P connector (female terminals) No. 12:
Test point 2	ACC combination switch 12P connector (female terminals) No. 5:

Is there about 5 V?


	YES

Replace the ACC combination switch.?


	NO

Go to step 4.

Open wire check (CRUISE GND line) 1:

Open wire check (CRUISE GND line) 1

?1.	Turn the vehicle to the OFF (LOCK) mode.

?2.

Disconnect the following connector.

Cable reel connector D (20P)

?3.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	ACC combination switch 12P connector: disconnected
	Cable reel connector D (20P): disconnected
Test point 1	ACC combination switch 12P connector (female terminals) No. 5:
Test point 2	Cable reel connector D (20P) (female terminals) No. 17:

Is there continuity?


	YES

Go to step 5.


	NO

Repair an open in the CRUISE GND wire between the ACC combination switch and the cable reel.?

Cable reel check:

Cable reel check

?1.	Remove the cable reel.

?2.

On the cable reel side, check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	ACC combination switch 12P connector: disconnected
	Cable reel connector D (20P): disconnected
	Cable reel connector A (20P): disconnected
Test point 1	Cable reel connector A (20P) (male terminals) No. 5:
Test point 2	Cable reel connector D (20P) (male terminals) No. 17:

Is there continuity?


	YES

Go to step 6.


	NO

Replace the cable reel.?

Open wire check (CRUISE GND line) 2:

Open wire check (CRUISE GND line) 2

?1.

Disconnect the following connector.

Gauge control module connector A (32P)

?2.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	ACC combination switch 12P connector: disconnected
	Cable reel connector D (20P): disconnected
	Cable reel connector A (20P): disconnected
	Gauge control module connector A (32P): disconnected
Test point 1	Gauge control module connector A (32P) No. 5
Test point 2	Cable reel connector A (20P) (female terminals) No. 5:

Is there continuity?


	YES

Replace the gauge control module.?


	NO

Repair an open in the CRUISE GND wire between the gauge control module and the cable reel.?

Open wire check (LKAS/DIST line) 2:

Open wire check (LKAS/DIST line) 2

?1.	Turn the vehicle to the OFF (LOCK) mode.

?2.

Disconnect the following connector.

Cable reel connector D (20P)

?3.	Turn the vehicle to the ON mode.

?4.

On the cable reel side, measure the voltage between test points 1 and 2.

Test condition	Vehicle ON mode
	ACC combination switch 12P connector: disconnected
	Cable reel connector D (20P): disconnected
Test point 1	Cable reel connector D (20P) (male terminals) No. 20:
Test point 2	Body ground

Is there about 5 V?


	YES

Repair an open in the LKAS/DIST wire between the ACC combination switch and the cable reel.?


	NO

Go to step 8.

Cable reel check:

Cable reel check

?1.	Turn the vehicle to the OFF (LOCK) mode.

?2.

Disconnect the following connector.

Cable reel connector A (20P)

?3.	Turn the vehicle to the ON mode.

?4.

Measure the voltage between test points 1 and 2.

Test condition	Vehicle ON mode
	ACC combination switch 12P connector: disconnected
	Cable reel connector D (20P): disconnected
	Cable reel connector A (20P): disconnected
Test point 1	Cable reel connector A (20P) (female terminals) No. 8:
Test point 2	Body ground

Is there about 5 V?


	YES

Replace the cable reel.?


	NO

Go to step 9.

Open wire check (DISTANCE SW line):

Open wire check (DISTANCE SW line)

?1.	Turn the vehicle to the OFF (LOCK) mode.

?2.

Disconnect the following connector.

Gauge control module connector A (32P)

?3.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF mode
	ACC combination switch 12P connector: disconnected
	Cable reel connector D (20P): disconnected
	Cable reel connector A (20P): disconnected
	Gauge control module connector A (32P): disconnected
Test point 1	Gauge control module connector A (32P) No. 28
Test point 2	Cable reel connector A (20P) (female terminals) No. 8:

Is there continuity?


	YES

Replace the gauge control module.?


	NO

Repair an open in the DISTANCE SW wire between the gauge control module and the cable reel.?