Troubleshooting

214 RENR2696-01
Troubleshooting Section
Results:
•
OK – Proceed to Test Step 2.
•
Not OK
Repair: Repair the circuit.
Verify that the repair eliminates the problem.
STOP.
Test Step 2. Check “Throttle Sw i tch
Position” on the Electronic Service Tool
A. Turn the keyswitch to the OFF position.
B. Connect the el
ectronic service tool to the
diagnostic connector.
C. Turn the keysw
itch to the ON position.
D. Observe the status of the throttle switch and the
throttle inp
uts on the electronic service tool while
youoperatethethrottleswitchineachposition.
Expected Res
ult:
The status on the electronic service tool should
correspond w
ith the information in Table 13.
Results:
•
OK – The throttle switch is functioning properly
at this time.
Repair: Refer to Troubleshooting, “Electrical
Connectors - Inspect” if the problem is intermittent.
STOP.
•
Not OK – Reco
rd the suspect input. Proceed to
Test Step 3.
Test Step 3.
Jumper the Switch Input at
the Suspect
Throttle Position Switch
A. Turn the keyswitch to the OFF position.
B. Observe the status of the suspect throttle input on
the electronic service tool.
C. Use a suitable piece of wire to short P/20:37
Switch Return to the terminal for the suspect
throttle i
nput.
D. Observe the status of the suspect throttle input on
the electr
onic service tool.
E. Removethewireshort.
Expected Result:
The status of the suspect throttle input should be
“OFF” when the jumper wire is disconnected. The
status should
be “ON” when the jumper wire is
connected.
Results:
•
OK – The harness and the ECM are OK.
Repair: Replace the throttle switch.
Verify that th
e repair eliminates the problem.
STOP.
•
Not OK – Proceed to Test Step 4.