OM3006.4 04/98 Operation - Section 3 Electronic Displays and Messages Page 3-41 If any of the severe fault codes that are listed below appear on the warning screen, CENTER ELECTRONIC DISPLAY PANEL Action Code Display As previously discussed, if a fault occurs in any of the monitored systems, a code will be displayed on the "MOM" screen. At the same time an action code will also be displayed to inform the operator of a procedure to follow because of the fault. This "action code" is also displayed on the electronic display panel.
The elec- tronic display panel will display the action code of any fault informed through the serial communications net- work, "S-NET," from any controller that detects a fault . When the fault occurs, the action code of this fault will be displayed automatically. perform the following procedure to move the truck: 1. Bring the truck to a stop in a safe location. Apply the parking brake and move the range selector to the neutral position. 2. Activate the limp home switch by removing and reconnecting the single wire connector located under the passenger seat. 3. Next move the range selector to either Drive, 5th, 4th, 3rd, Low or Reverse.
The transmission will then shift to F1 or F2 when either of the forward positions was selected, Drive, 5th, 4th, 3rd, Low or Reverse when the R position was attained. 4. The selection of F1 or F2 will be dependent on the type of fault code. 5. The limp home switch will remain active until the key switch is turned off. FIGURE 1. When displaying an "03" action code, first the "E" will be displayed (Figure 1) and then, the "03" code (Figure 2) will be displayed. Idle Validation Feature If there is a problem with the throttle pedal signal, not transmitting correctly, because of the harness, sensor, or controller troubles, the engine speed will go to the following settings: FIGURE 2.
These two displays will alternate every second. The other displays, gauges and pilots will function as nor- mal. If more than two codes are present at the same time, the highest priority action code will be displayed. That priority is as follows: 04; 06; 05; 07; 03; 02; 01. Fault Code Description Remarks b024 1st Clutch Failure b025 2nd Clutch Failure b026 3rd Clutch Failure b028 Reverse Clutch Failure b063 T/M Output Speed Sensor Failure Throttle Pedal Position Engine RPM Pressed 1300 RPM Released 7 50 RPM