Closed Throttle Position (CTP) Switch F60 , checking

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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.

NOTE:

Use only gold-plated terminals when servicing the electrical harness connector terminals in Closed Throttle Position (CTP) Switch F60.

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.

Closed Throttle Position (CTP) Switch F60 electrical harness connector terminals	Motronic Engine Control Module (ECM) J220 electrical harness connector T80 test box sockets
4	62
8	74

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:

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

End of diagnosis