SEAL-U-CUP 5599865 - Caterpillar

The Throttle Position Sensor calibration requires the use of a Caterpillar Electronic Service Tool (ECAP or ET). Refer to the Troubleshooting manual and SEHS9199 Tool Operating Manual for additional information.1. Turn the ignition keyswitch to the OFF position.2. Connect the Electronic Service Tool to the Service Tool Connector.3. Turn the ignition keyswitch to the ON position, engine OFF.4. Access the Monitor Throttle Position Sensor Signal screen on the Electronic Service Tool to display Duty Cycle.5. Adjust the throttle linkage, with the throttle lever in the LOW IDLE position. The LOW IDLE duty cycle should read between eight and ten percent. After adjustment, a slight movement away from the LOW IDLE stop should increase the duty cycle reading.6. Adjust the throttle linkage, with the throttle lever in the HIGH IDLE position. The HIGH IDLE duty cycle should read between 90 and 95 percent. On some linkage designs changing the HIGH IDLE adjustment can affect the LOW IDLE stop position. Repeat the adjustment at LOW IDLE to verify that the LOW IDLE stop is properly adjusted.
Figure 2.22 Electronic Service Tool Display ScreenDiagnostic Lamps
Figure 2.23 Lamp Connections1. Connect from J31 Customer Connector pin-11 to Low Oil Pressure Lamp pin-1. Connect the Low Oil Pressure Lamp pin-2 to the Switched +Battery.2. Connect from the J31 Customer Connector pin-4 to the High Coolant Temperature Lamp pin-1. Connect the High Coolant Temperature Lamp pin-2 to the Switched +Battery.3. Connect from the J31 Customer Connector pin-5 to the Low Boost Lamp pin-1. Connect the Low Boost Lamp pin-2 to the Switched +Battery.4. Connect from the J31 Customer Connector pin-6 to the Transmission Warning Lamp pin-1. Connect the Transmission Warning Lamp pin-2 to the Switched +Battery.5. Connect from the J31 Customer Connector pin-10 to the Diagnostic Lamp pin-1. Connect the Diagnostic Lamp pin-2 to the Switched +Battery.6. Connect from the J31 Customer Connector pin-12 to the Low Coolant Level Lamp pin-1. Connect the Low Coolant Level Lamp pin-2 to the -Battery Bus Bar.Diagnostic Lamps With An Alarm
Figure 2.24 Lamp Connections with an Alarm Connecting The Standard Diagnostic Outputs
1. Connect from pin-11 of the J31 Customer Connector to pin-1 of the Low Oil Pressure Lamp. Connect pin-2 of the Low Oil Pressure Lamp to +Battery.2. Connect pin-10 of the J31 Customer Connector to pin-1 of the Diagnostic Lamp. Connect pin-2 of the Diagnostic Lamp to +Battery.3. Connect pin-6 of the J31 Customer Connector to pin-1 of the Transmission Warning Lamp. Connect pin-2 of the Transmission Warning Lamp to +Battery.4. Connect pin-5 of the J31 Customer Connector to pin-1 of the Low Boost Pressure Lamp. Connect pin-2 of the Low Boost Pressure Lamp to +Battery.5. Connect pin-4 of the J31 Customer Connector to pin-1 of the High Coolant Lamp. Connect pin-2 of the High Coolant Lamp to +Battery.6. Connect from pin-12 of the J31 Customer connector to the normally open (N/O) relay coil. Connect the other side of the N/O relay coil to the -Battery Bus Bar.7. Connect one side of the N/O contact to the -Battery Bus