FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

P0725

Test 1:




Test 2-6:




Test 7-8:





SYMPTOM
P0725-ENGINE SPEED SENSOR CIRCUIT

WHEN MONITORED
Whenever the engine is running.

SET CONDITION
Engine RPM less than 390 or greater than 8000 for more than 2 seconds while the engine is running.

POSSIBLE CAUSES
- EATX RPM SIGNAL CIRCUIT OPEN
- EATX RPM SIGNAL CIRCUIT SHORT TO GROUND
- EATX RPM SIGNAL CIRCUIT SHORT TO VOLTAGE
- TRANSMISSION CONTROL MODULE
- INTERMITTENT WIRING AND CONNECTORS
- POWERTRAIN CONTROL MODULE