FI SYSTEM DIAGNOSIS 5-45
“C20” (P1752) DIFF-LOCK RELAY CIRCUIT MALFUNCTION
INSPECTION
Step 1
1) Remove the rear fender (
$
8-10).
2) Connect the disconnected couplers and battery.
3) Turn the ignition switch OFF.
4) Check the diff-lock relay coupler for loose or poor contacts.
5) If OK, then check the diff-lock relay insulation and continuity.
(
$
9-23)
Is the diff-lock relay OK?
5) After repairing the trouble, clear the DTC using SDS tool.
(
$
5-23)
DETECTED CONDITION
POSSIBLE CAUSE
No voltage is applied to diff-lock motor, although
ignition switch is turned ON, or voltage is applied to
diff-lock motor, although ignition switch is turned
OFF.
• Diff-lock relay circuit open or short.
• Diff-lock relay malfunction.
• ECM malfunction.
YES
• Inspect the transfer selecting switch. (
$
9-37)
• Y/B wire open or shorted to ground, or poor
K
connection.
• If wire and connection are OK, intermittent trou-
ble or faulty ECM.
• Recheck each terminal and wire harness for
open circuit and poor connection.
• Replace the ECM with a known good one, and
inspect it again.
NO
Replace the diff-lock relay with a new one.
ECM
Diff-lock relay
Ignition
switch
Ignition
fuse
Main
fuse
Diff-lock relay
Transfer selecting
switch
Diff-lock
motor
O/Y
B
W/Bl
Br
W
Y/B
B/G
1
Wire harness side
Summary of Contents for LT-A700X 2004
Page 25: ...2 8 PERIODIC MAINTENANCE INTAKE SIDE ...
Page 26: ...PERIODIC MAINTENANCE 2 9 EXHAUST SIDE ...
Page 46: ...PERIODIC MAINTENANCE 2 29 ...
Page 59: ...3 8 ENGINE Remove the engine from the right side ...
Page 133: ...3 82 ENGINE Pull the rope and check that the ratchet is pushed out ...
Page 155: ......
Page 263: ......
Page 301: ...7 20 COOLING AND LUBRICATION SYSTEM EXHAUST SIDE INTAKE SIDE ...
Page 302: ......
Page 312: ...CHASSIS 8 9 REAR CARRIER Remove the rear carrier 1 ...
Page 386: ......
Page 420: ...ELECTRICAL SYSTEM 9 33 HEADLIGHT INSTALLATION Head light coupler Head light R Adjusting point ...
Page 453: ...10 26 SERVICING INFORMATION Rear box Rear fender Right mud guard Left mud guard ...
Page 477: ......
Page 480: ...Prepared by September 2004 Part No 99500 46060 01E Printed in U S A 472 ...