TM 5-3805-298-23-1
0083
Table 1. 177 Transmission Oil Temperature Sensor Diagnostic Codes - Continued.
083
CID FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
4. Using MSD, check for active
Diagnostic Code 177-3 Transmission
177-3 Transmission Oil
diagnostic codes (WP 0008).
Oil Temperature Sensor Voltage
Temperature Sensor Voltage
Above Normal Becomes Inactive -
Above Normal - Continued
Troubleshooting complete.
Diagnostic Code 177-3 Transmission
Oil Temperature Sensor Voltage
Above Normal Remains Active -
Repeat troubleshooting from the
beginning.
NOTE
177-4 Transmission Oil
Temperature Sensor Voltage
Always inspect wiring harness connectors that are involved in the circuit.
Below Normal
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 wiring harness connection to
identify the correct wiring harness to replace.
Tag all wiring harnesses to aid in installation.
Perform this test only if condition is active.
DIAGNOSTIC CODE SET CONDITION
Engine ECM detects signal voltage from the fuel rail pressure sensor is less than
0.2 Volts DC for 0.6 seconds.
POSSIBLE CAUSE
Transmission wiring harness is shorted to ground.
Lower cab wiring harness is shorted to ground.
Transmission oil temperature sensor is faulty.
Engine ECM.
Test Step 1. Check for Active
Diagnostic Codes.
1. Connect MSD, select
Diagnostic Code 177-4 Active -
Transmission 924H, and check for
Proceed to Step 2.
active diagnostic codes
Diagnostic Code 177-4 Not Active -
Troubleshooting is complete.
2. Using MSD (WP 0008), check for
Diagnostic Code 41-3 or 41-4
active diagnostic code 41.
Active - Repair diagnostic code 262
first (WP 0005).
Diagnostic Code 41-3 or 41-4 Not
Active - Proceed to Test Step 2.
