
DI-341
DIAGNOSTICS - ABS WITH EBD & BA & TRAC & VSC SYSTEM
DI6CN-03
DTC C1340 / 47 Center Differential Lock Circuit
CIRCUIT DESCRIPTION
DTC No. DTC Detecting Condition Trouble Area
S Center differential lock system
C1340 / 47 Open or short circuit in center differential lock circuit. S Center differential lock circuit
S Center differential lock indicator light circuit
WIRING DIAGRAM
4WD ECU Skid Control ECU
20 24
P-G P-G
IND2 F7 V18 CD
Combination Meter P-G
Driver Side J/B Center
2 GAUGE 8 12 Diff Lock 3
B-Y B-Y
1I 1F C29 C29
I14 Engine Room R/B
Ignition Switch
AM1 ALT
W
2 2
4 IG1 AM1 2
2 1 2 1
6 W 3
R-B R-B
P1 F7 V18 EXI
R-B D31
Detection SW
7 3
R-B W-B
II2 II2
W-B
2 1
C
J3
J/C
Center J/B C
16 18
J9 W-B W-B
J/C 3E 3E
A
Battery
IF
F14337
2002 4RUNNER (RM887U)
Author : Date : 517
DI-342
DIAGNOSTICS - ABS WITH EBD & BA & TRAC & VSC SYSTEM
INSPECTION PROCEDURE
1 Check that center differential is free and center diff. lock switch is OFF.
NG Repair center differential lock system.
OK
2 Is DTC output?
Check DTC on page DI-224 .
NO Normal.
YES
3 Check that bulb for center diff. lock indicator light is not burnt out.
YES Replace indicator light.
NO
4 Check for open circuit in harness and connector between center diff. lock switch
and skid control ECU, skid control ECU and center diff. lock indicator light (See
page IN-28 ).
NG Repair or replace harness or connector.
OK
Check and replace skid control ECU.
2002 4RUNNER (RM887U)
Author : Date : 518