Troubleshooting

(Table 109, contd)
Troubleshooting Test Steps
Values Results
4. Create a Short at the Switch Connector
A. Turn the keyswitch to the OFF position.
B. Disconnect the throttle switch.
C. Fabricate a jumper wire and install the jumper wire between the
two harness connector terminals for the throttle switch.
D. Turn the keyswitch to the ON position.
E. Use the electronic service tool to check for an active 2880 diag-
nostic code. Wait at least 10 seconds for activation of the diagnos-
tic codes.
F. Turn the keyswitch to the OFF position.
G. Remove the jumper wire.
Diagnostic codes Result: A 2880-4 diagnostic code is active with the
jumper installed.
Repair: Replace the throttle switch.
Use the electronic service tool to clear all logged diag-
nostic codes and verify that the repair eliminates the
fault.
Result: A 2880-3 diagnostic code is still active with the
jumper installed.
Reconnect the throttle switch and proceed to Test Step
7.
5. Check the Voltage at the Switch Connector
A. Turn the keyswitch to the OFF position.
B. Disconnect the throttle switch.
C. Turn the keyswitch to the ON position.
D. Use a suitable multimeter to measure the voltage between the
signal terminal and the ground terminal at the switch connector.
E. Turn the keyswitch to the OFF position.
4.9 V to 5.1 V Result: The voltage is within the expected range.
Repair: Replace the throttle switch.
Use the electronic service tool to clear all logged diag-
nostic codes and verify that the repair eliminates the
fault.
Result: The voltage is not within the expected range.
Proceed to Test Step 6.
(continued)
UENR0612-07 239
Circuit Tests
This document has been printed from SPI2. NOT FOR RESALE