TM 10-3930-675-20-1
0027 00-10
TRANSMISSION SPEED SENSORS TROUBLESHOOTING - CONTINUED
0027 00
Table 10. Error Code 658 - Output Speed Sensor Failure, Open Circuit or Short Circuit to Battery
Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 658 - Output Speed Sensor Failure,
Open Circuit or Short Circuit to Battery -
Continued
7. Check continuity between
transmission ECU connector
pin 4 and connector X173 pin
1 and between transmission
ECU connector pin 62 and
connector X173 pin 2.
a. If continuity is not present,
repair or replace connectors
(WP 0111 00).
b. If wiring harness must be
replaced, notify SRA.
8. Check voltage at connector
760 pin 3, connector X173 pin
3, and connector X174 pin 2.
Voltage should be 20-25V.
a. If voltage is as specified,
replace output speed sensor
(WP 0095 00).
b. If voltage is not as specified,
repair or replace connectors
(WP 0111 00).
c. If wiring harness must be
replaced, notify SRA.
Table 11. Error Code 659 - Output Speed Sensor Failure, Short Circuit to Chassis Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 659 - Output Speed Sensor Failure,
Short Circuit to Chassis
1. Remove cab transmission and
steering ECU panel cover and
check transmission ECU
connector
for
proper
connection (WP 0079 00).
Connect loose or disconnected
connector.
2. Remove cab rear wall center
panel cover and check
connector X173 for proper
connections.
Connect loose or disconnected
connectors.
3. Move operator’s cab to
transport position and remove
transmission access covers
(WP 0135 00).
4. Check transmission electrical
harness connector 760 for
proper connection at output
speed sensor.
Connect loose or disconnected
connectors.
