1A-45 Engine General Information and Diagnosis:
DTC “C20” (P1752): Diff-lock Relay Circuit Malfunction
B931H21104014
Detected Condition and Possible Cause
Wiring Diagram
ECM coupler (Harness side)
Troubleshooting
NOTE
After repairing the trouble, clear the DTC using SDS tool. Refer to “Use of SDS Diagnosis Reset
Procedures (Page 1A-12)”.
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.
ECM
Diff-lock relay
Ignition
switch
Ignition
fuse
Main
fuse
Diff-lock relay
Transfer selecting
switch
Diff-lock
actuator
O/Y
B
W/Bl
Br
W
Y/B
B/G
21
I931H1110039-01
I831G1110019-01
Summary of Contents for 2009 LT-A500XP
Page 2: ......
Page 4: ......
Page 14: ...00 9 Precautions ...
Page 224: ...1E 3 Engine Lubrication System EXHAUST SIDE INTAKE SIDE I931H1150003 02 ...
Page 304: ...1K 4 Exhaust System ...
Page 346: ...2D 5 Wheels and Tires ...
Page 438: ...3D 26 Propeller Shafts ...
Page 482: ...4D 6 Parking Brake ...
Page 512: ...5A 28 Automatic Transmission ...
Page 624: ...Prepared by December 2008 Part No 99500 44080 03E Printed in U S A 624 ...