Crankshaft Position Sensor - Cannondale 5002401 Service Manual

CRANKSHAFT POSITION SENSOR

Fault Reported
Crank tooth sync fault
Pinpoint Tests
Test
1. Check wire and terminal
integrity:
- P1 A1
- P1 B1
2. Check cable for short circuit:
- P1 A1 to ground
- P1 B1 to ground
3. Check cable continuity:
- P1 A1 to CN2 pin 2
- P1 B1 to CN2 pin 1
4. Check cable for short circuit:
- P1 E1 to P1 F1
- P1 E2 to P1 F2
5. Check cable continuity:
- Sensor cable screen to (frame)
ground
6. Check sensor resistance:
Sensor pin 1 to pin 2
7. Check crank toothed wheel
- Damaged teeth
- Magnetic debris contamination
8. Reconnect harness, run
engine and check for presence
of fault.
Electrical_EFI Service Manual.fm
© 2002 Cannondale Corporation - All Rights Reserved
Possible Cause
Damaged or contaminated

crankshaft position sensor,

damaged ECU, harness short
or open circuit, IACV con-
n e c t o r d i s c o n n e c t e d o r
damaged
Result
OK
Faulty
OK
Short circuit
OK
Open circuit
OK
Short circuit
OK
Open circuit
532 to 588 Ohms
Faulty
OK
Faulty
OK
Fault still present
56
Action
Check that harness connector is secure.
Check sensor air gap: 0.5 to 1.0 mm
Check for damaged flywheel teeth.
Check flywheel runout or play.
Disconnect ECU and go to Test 1.
Action
Disconnect sensor and go to Test 2.
Locate and correct wiring fault and go to
Test 8.
Go to Test 3.
Locate and correct wiring fault and go to
Test 8.
Go to Test 4.
Locate and correct wiring fault and go to
Test 8.
Go to Test 6.
Locate and correct wiring fault and go to
Test 8.
Go to Test 7.
Locate and correct wiring fault and go to
Test 8.
Go to Test 5.
Replace sensor and go to Test 8.
Go to Test 8.
Clean / replace toothed wheel, go to Test
8.
Done
Contact Cannondale Dealer Service.