TM 10-3930-675-24-1
TRANSMISSION SPEED SENSORS TROUBLESHOOTING - CONTINUED
0027 00
Table 8. Error Code 656 - Internal Speed Sensor Failure, Short
Circuit to Chassis Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 656 - Internal Speed Sensor Failure,
4. Check connector and pins. a. Repair or replace damaged
Short Circuit to Chassis - Continued.
Disconnect ECU (793). Check
connector (WP 0113 00).
the connector and ECU pins 3 b. Replace damaged ECU (793)
and 42 for damage. Check
(WP 0080 00).
continuity and for continuity to c. Replace open or grounded
ground of wires A1738,
wire.
A1735A, and A1735C (WP
0048 00-14).
Table 9. Error Code 657 - Internal Speed Sensor Failure,
Logical Error Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 657 - Internal Speed Sensor Failure, Place ignition switch in OFF
If error code is still present,
Logical Error.
position for 30 seconds and then
perform troubleshooting pro-
back in ON position.
cedures for error code 655.
Circuit or Short Circuit to Battery Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 658 - Output Speed Sensor Failure, 1. Ensure circuit breaker F28 is Reset circuit breaker.
Open Circuit or Short Circuit to Battery.
not tripped.
2. Check for voltage. Access a. If no voltage (24V) is found,
middle panel behind seat and
check continuity of wires
disconnect X173. Turn the
A472, 472 (WP 0048 00-32),
ignition on and check voltage
A1742B (WP 0048 00-12),
(24V) on the mounted part of
and A1742C (WP 0048 00-
X173 pin 3 to ground.
14).
b. Repair or replace damaged
connector (WP 0113 00).
c. Replace open or shorted wire.
3. Check connector. Disconnect If the 760 output speed sensor is
and inspect the 760 output damaged, replace the 760 output
speed sensor located on the speed sensor (WP 0096 00).
back side of the transmission
(WP 0048 00-14).
0027 00-9
