Black Widow Security BW 2800 Manuale di Servizio Scaricare il pdf (Pagina 49)

Electrical_EFI Service Manual.fm

THROTTLE POSITION SENSOR (TPS)

Fault Possible Cause Action

Throttle position sensor high

fault

Throttle position sensor low

fault

Damaged TPS sensor,

ECU, harness short or open

circuit, TPS sensor connector

disconnected or damaged

Component test the TPS sensor.

Check that sensor harness connector is

secure.

Disconnect ECU and go to Test 1.

Pinpoint Tests

Test Result Action

1. Check wire and terminal

integrity:

- P1 B3

- P1 E3

- P1 B4

OK Disconnect TPS sensor and go to Test 2.

Faulty

Locate and correct wiring fault and go to

Test 5.

2. Check for short circuit

between:

- P1 E3 to ground

OK Go to Test 3.

Short circuit

Locate and correct wiring fault and go to

Test 5.

3. Check cable continuity:

- P1 E4 to CN3 pin A

- P1 E3 to CN3 pin C

- P1 B3 to CN3 pin B

OK Go to Test 4.

Open circuit

Locate and correct wiring fault and go to

Test 5.

4. Check cable for short circuit:

- P1 E3 to P1 B3

- P1 E3 to P1 E4

Replace throttle position sensor, go to

Test 5.

Short circuit

Locate and correct wiring fault and go to

Test 5.

5. Reconnect harness, run

engine and check for presence

of fault.

OK Done

Fault still present Contact Cannondale Dealer Service.

Circuit Diagram

1 2 ... 44 45 46 47 48 49 50 51 52 53 54 ... 59 60

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Black Widow Security BW 2800 Manuale di Servizio Pagina 49

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