TM 5-3805-296-23-1
0063
Table 1. 0673 Transmission Speed Sensor Diagnostic Code.
0063
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
0673-02 Speed Sensor 2
Incorrect Signal
Always inspect harness connectors that are involved in the circuit. Poor
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 Receives Erratic Data From Transmission
Speed Sensor B (TOS 2).
Data From Transmission Speed Sensor B (TOS 2) Conflicts with Data
From Transmission Speed Sensor A (TOS 1).
POSSIBLE CAUSE
Transmission Wring Harness High Resistance, Open, or Shorted.
Chassis Wring Harness High Resistance, Open, or Shorted.
Main Cab Wring Harness High Resistance, Open, or Shorted.
Transmission Output Speed Sensor B (TOS 2).
Transmission/Chassis ECM.
