Closed Throttle Position (CTP) Switch F60 , checking
WARNING: This page is about a different variant/trim than selected.
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.
- Disconnect the Closed Throttle Position (CTP) Switch F60 6-pin electrical harness connector.
Checking internal resistance
- 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) .
- 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