Closed Throttle Position (CTP) Switch F60 , checking

Special tools, testers and auxiliary items required 

• Multimeter.
• Wiring diagram

Test procedure 

• Perform a preliminary check to verify the customers complaint. Refer to → Motronic Engine Control Module (ECM) J220 , replacing 

Test requirement 

• The Motronic Engine Control Module (ECM) J220 fuses OK.
• Battery voltage at least 12.5 volts.
• All electrical consumers such as, lights and rear window defroster, switched off.
• Vehicles with automatic transmission, shift selector lever into position "P" or "N".

• A/C switched off.
• Ground (GND) connections between engine/transmission/chassis OK.

Test sequence 

• Remove the engine cover with air filter.

Fig 1: 6-Pin Electrical Harness Connector & Terminals

Courtesy of VOLKSWAGEN UNITED STATES, INC.

• Disconnect the Closed Throttle Position (CTP) Switch F60 6-pin electrical harness connector.

Checking internal resistance 

Fig 2: Identifying Closed Throttle Position Switch F60 Electrical Harness Connector Terminals

Courtesy of VOLKSWAGEN UNITED STATES, INC.

• Using a multimeter , check the Closed Throttle Position (CTP) Switch F60 electrical harness connector terminals 4 to 6 for resistance.

Specified value: 0 Ω

• Open throttle slightly.

Specified value: ∞Ω

If the specification was not obtained:

• Replace the Closed Throttle Position (CTP) Switch F60. Refer to 24 - Multiport Fuel Injection (MFI) 

Checking wiring 

• Install the Adapter F/VAG1598 (68 Pin) VAG1598/22. Refer to 24 - Multiport Fuel Injection (MFI)  .

Fig 3: 6-Pin Electrical Harness Connector & Terminals

Courtesy of VOLKSWAGEN UNITED STATES, INC.

• Using a Multimeter , check the following wiring connections for continuity.

Specified value: 1Ω

If the specification was not obtained:

• Check the wiring for a short circuit to each other, Battery (+), and Ground (GND).
• Check the electrical harness connector for damage, corrosion, loose or broken terminals.
• If necessary, repair the faulty wiring connection.
• If the specification was obtained:

• Erase the DTC memory. Refer to → Diagnostic Mode 04: Reset/delete diagnostic data 
• Perform a road test to verify repair.

If the DTC does not return:

Repair complete, Generate readiness code. Refer to → Readiness Code  .

• End diagnosis.

If the DTC does return and no malfunction is detected in the wiring and the voltage supply was OK:

• Replace the Motronic Engine Control Module (ECM) J220. Refer to → Motronic Engine Control Module (ECM) J220 , replacing  .
• Assembly is performed in the reverse of the removal.
• Install the engine cover with air filter.

Final procedures 

After the repair work, the following work steps must be performed in the following sequence:

1. Check the DTC memory. Refer to.
2. If necessary, erase the DTC memory. Refer to.
3. If the DTC memory was erased, generate readiness code. Refer to.

End of diagnosis