TM 5-3805-298-23-1
0079
Table 1. 41 Eight-Volt Transmission Sensor Power Supply Diagnostic Codes.
0079
CID FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
41-3 Eight-Volt Sensor
Power Supply Is Above
Always inspect wiring harness connectors that are involved in the circuit.
Normal or the Voltage Is
Poor connections can often be the cause of a problem in an electrical
Shorted High
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
Transmission ECM detects the voltage of the sensor supply circuit as higher
than normal.
POSSIBLE CAUSE
Transmission wiring harness is shorted to voltage.
Lower cab wiring harness is shorted to voltage.
Transmission ECM.
Test Step 1. Check for Active
Diagnostic Codes.
Connect MSD, select Transmission
Diagnostic Code 41-3 Active -
Proceed to Test Step 2.
924H, and check for active diagnostic
codes (WP 0008).
Diagnostic Code 41-3 Not Active -
Troubleshooting is complete.
Test Step 2. Test for Shorted
Transmission Wiring Harness.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-298-10).
2. Remove right lower cab access
panels (WP 0347).
3. Disconnect connector P-C19
(WP 0012, Figure 54) from
transmission oil temperature
sensor.
