Toyota 1996 LAND CRUISER User Manual page 1165

DIFF. fuse/
8 (IG) − Body ground
Rear diff. lock position switch/
2 (RLP) − Body ground
Front diff. lock position switch/
9 (FLP) − Body ground
Center diff. indicator switch/
15 (4WD) − Body groud
Differential lock control switch/
12 (R) − Body ground
Differential lock control switch/
6 (RF) − Body ground
ECU Side
1996 LAND CRUISER (RM451U)
Brought to you by BirfMark
SUSPENSION AND AXLE −
Ignition switch ON
Ignition switch ON,
Indicator light (Rear) ON
Ignition switch ON,
Indicator light (Rear) OFF
Ignition switch ON,
Indicator light (front) ON.
Ignition switch ON,
Indicator light (front) OFF
Ignition switch ON,
Indicator light (Center diff. lock) ON
Ignition switch ON,
Indicator light (Center diff. lock) OFF
Ignition switch ON,
Diff. lock control switch RR or FR RR
Ignition switch ON,
Diff. lock control switch OFF
Ignition switch ON,
Diff. lock control switch FR RR
Ignition switch ON,
Diff. lock control switch OFF or RR
HINT:
When a signal enters the ECU to LOCK the front differential and
set the rear differential to FREE (when battery positive voltage
is inputted to terminal 6 (RF) of ECU and about 0 V is inputted
to terminal 12 (R)), or a signal to FREE both the front and rear
differentials, the indicator lights keep blinking until the ignition
switch is turned off (Fail−safe function).
If the circuit is not as specified, check and repair or replace the
trouble part shown in the table above.
(b) Inspect the battery positive voltage
Battery positive voltage: 10 − 14.5 V
(c) Inspect the system circuit with connector connected
(1)
(2)
(3)
(4)
Terminals (Symbols)
15 (4WD) − 13 (GND)
9 (FLP) − 13 (GND)
2 (RLP) − 13 (GND)
Z07256
Brought to you by BirfMark
Version 1.00 - 12/21/2010
DIFFERENTIAL LOCKING SYSTEM
Turn the ignition switch to the ON position.
Keep the center Diff. lock condition.
Remove the Diff. lock ECU.
Using a voltmeter, measure the voltage when the
differential lock control switch is in the position, as
shown below.
Switch Position
−
FR RR
RR or FR RR
Author :
SA−103
Battery positive voltage
About 0 V
Battery positive voltage
About 0 V
Battery positive voltage
About 0 V
Battery positive voltage
Battery positive voltage
About 0 V
Battery positive voltage
About 0 V
STD Voltage (V)
0.5 or less
0.5 or less
0.5 or less
Date : 960