Troubleshooting

218 RENR2696-01
Troubleshooting Section
A. UseasuitablepieceofwiretoshortP20:37Switch
Return to the te
rminal of the suspect throttle input
at J20/P20 MIC.
B. Measure the re
sistance between P20:37 (Digital
Return) and the terminal for the suspect throttle
input at ECM connector P1.
Expected Result:
Resistance sh
ould be less than 10 ohms.
Results:
•
OK – Proceed to Test Step 6.
•
Not OK – There i
s an open circuit or excessive
resistance in the harness.
Repair: Repai
r the circuit.
Verify that the repair eliminates the problem.
STOP.
Test Step 6. C
heck the Harness and the
ECM
g00874926
Illustration 127