Service Manual

Table Of Contents
Transmission Troubleshooting
3-40 627333-A
Error Codes 1000 - 2999
739-3 Transmission clutch #6 solenoid short to positive
terminal of the battery.
The solenoid has failed.
The energize circuit of the solenoid is shorted to
the + battery circuit.
The ECM has failed. This is unlikely.
739-5 Transmission clutch #6 solenoid open circuit. The energize circuit of the solenoid is open.
The return circuit of the solenoid is open.
The solenoid has failed.
The ECM has failed. This is unlikely.
739-6 Transmission clutch #6 solenoid short to ground. The energize circuit of the solenoid is shorted to
ground.
The solenoid has failed.
The ECM has failed. This is unlikely.
774-2 Up shift switch inputs incorrect. Failure in the switch
775-2 Down shift inputs incorrect. Failure in the switch
Codes Description Possible Cause
Codes Description Possible Cause
1079-0 5 Volt sensor power supply above normal. The supply circuit (wire R977-OR) is shorted to
the + battery circuit in the machine harness.
The ECM has failed. This in unlikely.
1079-1 5 Volt sensor power supply below normal. The supply circuit (wire R977-OR) is shorted to
the ground circuit in the machine harness.
The ECM failed. This is unlikely.
1079-3 5 Volt sensor power supply short to positive
terminal of the battery.
+5 DCV (wire R977-OR) is shorted to the +
battery circuit in the machine harness.
The ECM has failed. This is unlikely.
1079-4 5 Volt sensor power supply short to ground. +5 DCV (wire R977-OR) is shorted to the +
battery circuit in the machine harness.
The ECM has failed. This is unlikely.
1084-12 Front wheel drive transmission output speed bad
component.
Failure in the sensor.
1542-0 10 Volt sensor power supply above normal. The +10 VDC is shorted to the +battery circuit.
The ECM has failed. This is unlikely.
1542-1 10 Volt sensor power supply below normal. 10 VDC is shorted to ground between the sensor
and the ECM.
The ECM has failed. This is unlikely
1619-3 Backup alarm relay short to the positive terminal
of the battery.
The relay has failed.
The energize circuit of the relay is shorted to the
+ battery circuit.
The ECM has failed. This is unlikely.