TM 5-3805-293-23-1
0012
Table 1. All-Wheel Drive (AWD) Troubleshooting - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. Only One Wheel for AWD
1. Connect MSD (WP 0006). Select
Active Event or Diagnostic Fault
System Turns in One
All Wheel Drive 120M and check
Code - Troubleshoot fault codes (WP
Direction Only
for any Active event or diagnostic
fault codes.
No Active Event or Diagnostic Fault
Code - Proceed to step 2.
2. Perform Solenoid Valve (AWD
Solenoid Does Not Respond Cor-
Pump Displacement) Test (WP
rectly - Perform repairs as directed in
0043).
Solenoid Valve (AWD Pump Displace-
ment) Test (WP 0043).
Pump Does Not Respond Correctly
- Perform repairs as directed in Sole-
noid Valve (AWD Pump Displace-
ment) Test (WP 0043).
Solenoid and Pump Respond Cor-
rectly - Proceed to step 3.
3. Perform Solenoid (Motor Dis-
Solenoid Does Not Respond Cor-
placement) Test (WP 0043).
rectly - Perform repairs as directed in
Solenoid (Motor Displacement) Test
(WP 0043).
Motor Does Not Respond Correctly
- Perform repairs as directed in Sole-
noid (Motor Displacement) Test (WP
0043).
N OT E
4. One Front Wheel Locks
Up in One Direction
If wheel locks up during forward operation, the reverse solenoid for that
When AWD System is
wheel is suspect.
OFF
If wheel locks up during reverse operation, the forward solenoid for that
wheel is suspect.
Active Event or Diagnostic Fault
1. Connect MSD (WP 0006). Select
Code - Troubleshoot fault codes (WP
All Wheel Drive 120M and check
for any Active event or diagnostic
fault codes.
No Active Event or Diagnostic Fault
Code - Proceed to Step 2.
AWD Gear Oil Contaminated - Drain
2. Drain AWD gear oil from affected
and fill affected AWD motor (WP
wheel (WP 0168) and inspect
0168).
AWD gear oil for contamination.
AWD Gear Oil Contaminated With
Metal Shavings - Replace AWD pis-
ton motor of affected wheel (WP
0164) (WP 0165).
