TM 5-3805-296-23-2
0068
Table 1. 0718 Transmission System Diagnostic Codes.
0068
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
0718-11 Transmission
System Failure Not
Always inspect harness connectors that are involved in the circuit. Poor
Identifiable
connections can often be the cause of a problem in an electrical circuit.
Verify that all connections in the circuit are clean and secure and that all
connections are in good condition. If a problem with the connection is
found, correct the problem and verify that this malfunction or diagnostic
code is active before performing this procedure.
Perform open or short-circuit test at each harness connection to identify
the correct harness to replace.
Tag all wiring harnesses to aid in installation.
Perform this test only if condition is active.
DIAGNOSTIC CODE SET CONDITION
Transmission/Chassis ECM Detects Difference Between Engine Speed and
Transmission Speed Exceeds Margin of Tolerance.
POSSIBLE CAUSE
Transmission EOS (Engine Output Speed Sensor)/Circuits.
Transmission Output Speed Sensor A (TOS 1)/Circuits.
Transmission Output Speed Sensor B (TOS 2)/Circuits.
Engine Mechanical Failure.
Transmission Mechanical Failure.
Test Step 1. Check for Other Active
Codes.
1. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-296-10).
2. Connect MSD. Select
190-2 Engine Speed Sensor Erratic,
Transmission 621G and check for
Intermittent, or Incorrect Active
active diagnostic codes:
Diagnose and repair active code
a. 190-2 Engine Speed Sensor
(WP 0056).
Erratic, Intermittent, or
190-8 Engine Speed Sensor
Incorrect.
or Period Active Diagnose and repair
b. 190-8 Engine Speed Sensor
active code (WP 0056).
585-2 Speed Sensor 1 Incorrect
Width, or Period.
Signal Active Diagnose and repair
c.
585-2 Speed Sensor 1
active code (WP 0060).
Incorrect Signal.
673-2 Speed Sensor 2 Incorrect
d. 673-2 Speed Sensor 2
Signal Active Diagnose and repair
Incorrect Signal.
active code (WP 0063).
Only 718-11 Transmission System
Failure Not Identifiable Active
Proceed to Test Step 2.