TM 10-3930-675-24-1
MISCELLANEOUS TRANSMISSION FAILURE TROUBLESHOOTING
THIS WORK PACKAGE COVERS
Error Code 618 - Signal from Gear Selector Not Correct
Error Code 747 - Backup Alarm Control Circuit, Open
Circuit Failure
Error Code 622 - Feedback Signal from 2WD/4WD
Error Code 761 - 2WD/4WD Connection Valve Circuit,
Switch Not Correct
Short Circuit to Chassis Failure
Error Code 745 - Backup Alarm Control Circuit, Short
Error Code 762 - 2WD/4WD Connection Valve Circuit,
Circuit to Chassis Failure
Short Circuit to Battery Failure
Error Code 763 - 2WD/4WD Connection Valve Circuit,
Error Code 746 - Backup Alarm Control Circuit, Short
Open Circuit Failure
Circuit to Battery Failure
INITIAL SETUP
References - Continued
References
ECS Electrical Servo (A34648.0200) (WP 0048 00-
TM 10-3930-675-10
5)
ECU Transmission (A34650.0200) (WP 0048 00-
Lights (A34744.0200) (WP 0048 00-41)
12)
Shifting (A34739.0200) (WP 0048 00-35)
NOTE
Refer to WP 0004 00 for additional troubleshooting guidance, information, and illustrations that
locate critical components.
Table 1. Error Code 618 - Signal from Gear Selector Not Correct Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 618 - Signal from Gear Selector Not 1. Check position signals. Enter If signals from shift lever are not
Correct.
DIAG GEARBOX 2(12) in the correct, continue with next steps.
diagnostic menu and check the
shift lever position signals.
2. Check connection to cab
distribution box behind the left
rear panel of the cab.
Disconnect X28 from the back
of the cab distribution box.
