Troubleshooting

216 RENR2696-01
Troubleshooting Section
C. Measure the resistance between the P1:37 switch
return and the t
erminal for the suspect throttle
input.
D. Measure the re
sistance between the terminal
for the suspect throttle input and the remaining
terminals at the J20/P20 MIC:
•
P20:28 Throttle Switch No. 1
•
P20:20 Thrott
le Switch No. 2
•
P20:11 Throttle Switch No. 3
•
P20:19 Throttle Switch No. 4
Expected Resu
lt:
Resistance should be greater than 2,000 ohms for
each reading.
Results:
•
OK – Proceed to Test Step 5.
•
Not OK – There
is a short in the harness between
the ECM and the throttle switch.
Repair: Repa
ir the circuit.
Verify that the repair eliminates the problem.
STOP.