TM 5-2410-240-23-1
0020
Table 2. Powertrain and Chassis Troubleshooting with Codes - Continued.
CID FMI CODE
Test or Inspection
Corrective Action
2685-08 Left Drive Motor
19. Operate machine forward and
Speed Sensor #1 Abnormal
reverse (TM 5-2410-240-10).
Frequency, Pulse Width, or
Period - Continued
20. Do not turn ignition switch and
battery disconnect switch to OFF
position (TM 5-2410-240-10).
21. Connect MSD (WP 0016). Select
2685-08 Code Active - Replace
machine control ECM and check
machine ECM (WP 0147, WP 0149).
for diagnostic codes (WP 0013).
Verify proper operation of machine
(TM 5-2410-240-10).
No Codes Active - The problem does
not exist at this time. Resume normal
operation.
N OT E
2686-02 Left Drive Motor
Speed Sensor #2 Data
Always inspect harness connectors that are involved in circuit. Poor
Erratic, Intermittent, or
connections can often be the cause of an electrical circuit problem.
Incorrect
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
2686-02 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 left
track speed sensor connector
CH-C7 (WP 0018, Figure 86) from
left track speed sensor (WP
0127).
