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P2120-ACC PEDAL POSITION SENSOR 1 CKT PLAUSIBILITY —
TEST
17
Turn the ignition off.
Disconnect the APP Sensor harness connector.
Disconnect the ECM harness connectors.
Remove the ASD Relay from the PDC.
Connect a jumper wire between cavity 30 and cavity 87 of the ASD Relay connector.
Turn the ignition on.
Measure the voltage of the 5-volt Supply (Sensor Reference Voltage A on Sensor #2)
circuit in the ECM harness connector.
Is the voltage above 1.0 volt?
Yes → Repair the 5-volt Supply (Sensor Reference Voltage A on Sensor
→ Replace and program the Engine Control Module in accordance
No
ACTION
#2) circuit for a short to voltage.
Perform ROAD TEST VERIFICATION - VER-2.
with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
DRIVEABILITY - DIESEL
211
Continued
APPLICABILITY
All
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