TM 5-2410-240-23-1
0020
Table 2. Powertrain and Chassis Troubleshooting with Codes - Continued.
CID FMI CODE
Test or Inspection
Corrective Action
N OT E
2688-08 Right Drive Motor
Speed Sensor #2 Abnormal
Always inspect harness connectors that are involved in circuit. Poor
Frequency, Pulse Width, or
connections can often be the cause of an electrical circuit problem.
Period
Verify that all connections in circuit are clean, secure, and connections
are in good condition. If a problem with connection is found, correct
problem and verify diagnostic code is active before performing this
procedure.
Tag wiring harnesses to aid installation.
1. Operate machine forward and
reverse (TM 5-2410-240-10).
2. Do not turn ignition switch and
battery disconnect switch to OFF
position (TM 5-2410-240-10).
3. Connect MSD (WP 0016). Select
2688-08 Code Active - Proceed to
machine control ECM and check
step 4.
for diagnostic codes (WP 0013).
No Codes Active - The problem does
not exist at this time. Resume normal
operation.
4. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-2410-240-10).
5. Disconnect chassis harness right
track speed sensor connector
CH-C6 (WP 0018, Figure 85) from
right track speed sensor (WP
0127).
6. Disconnect chassis harness to
platform harness connector CH-
C1 (WP 0018, Figure 81) from
platform harness to chassis har-
ness connector PL-C18 (WP
0018, Figure 226).
7. Using digital multimeter
Continuity - Proceed to step 8.
(WP 0283), test for continuity
No Continuity - Replace chassis har-
between pin 6 on chassis harness
ness (WP 0153, WP 0154). Ensure all
to platform harness connector
harness connectors are reconnected.
CH-C1 (WP 0018, Figure 81) and
Verify proper operation of machine
pin 3 on chassis harness right
(TM 5-2410-240-10).
track speed sensor connector
CH-C6 (WP 0018, Figure 85).
