Inspection Procedure

NOTE: Be sure to read DESCRIPTION before performing the following procedures.

CHECK FOR DTC OF OTHER COMPONENTS

Check if the component shown by the sub-code is displayed in the check result of the other components.

Check if "01-DC" is output for the other components.
If "01-DC" is output for any other components, check if the same physical address is displayed.

HINT:

For the list of the components shown by sub-codes, refer to the table in step 2.

Result

RESULT REFERENCE

Result	Proceed to
"01-DC" is output and the same physical address is displayed	A
"01-DC" is not output or the same physical address is not displayed	B

B: GO TO step 4

A: Go to next step

IDENTIFY THE COMPONENT WHICH HAS STORED THIS CODE

Component Table:

COMPONENT TABLE

Display	Component
AUDIO H/U (190)	Radio receiver
DSP-AMP (440)	Stereo component amplifier
G/W (1C6)	Gateway ECU
NAVI (178)	Navigation ECU
EMV (110)	Multi-display
Rr-TV (1B0)	Television display assembly

HINT:

"NAVI" is the component which has stored this code in the example shown in the illustration.

Fig 1: Diagnostic Tool Display - System Check Mode And LAN Monitor Screen

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

CHECK COMPONENT WHICH HAS STORED THIS CODE

Component Table:

COMPONENT TABLE

Component	Proceed to
Gateway ECU (G/W)	(See GATEWAY ECU COMMUNICATION ERROR )
Radio receiver (AUDIO H/U)	(See RADIO RECEIVER COMMUNICATION ERROR )
Stereo component amplifier (DSP-AMP)	(See STEREO COMPONENT AMPLIFIER COMMUNICATION ERROR )
Navigation ECU (NAVI)	(See NAVIGATION ECU COMMUNICATION ERROR )
Multi-display (EMV)	(See MULTI-DISPLAY COMMUNICATION ERROR )
Television display assembly (Rr-TV)	(See TELEVISION DISPLAY ASSEMBLY COMMUNICATION ERROR )

NEXT: END

CLEAR DTC
1. Clear the DTCs (See DTC CHECK/CLEAR ).
HINT:

If "01-DC" is output for only one component, this may not indicate a malfunction.
RECHECK DTC
1. Recheck for DTCs and check if the same trouble occurs again.
  OK: Malfunction disappears.
NG: GO TO step 3

OK: END