EGR Valve 2 With Position Sensor
Observe all safety precautions: SAFETY PRECAUTIONS
View clean working conditions: CLEAN WORKING CONDITIONS
Perform a preliminary check to verify the condition: PRELIMINARY CHECK .
Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.
See Appropriate Wiring Diagram Information for component locations and connector views.
The EGR Valve 2 and Low Pressure EGR Valve both refer to the same component (N213) and for 2011 Models, it is referred to a V339 EGR Motor 2. Name changes occur in Appropriate Wiring Diagrams, parts listings etc. The EGR Position Sensor (Potentiometer) is part of the N213 or V339 valve assembly and is serviced as one component.
Special Tools And Workshop Equipment Required
- Multimeter
- Electrical connector test lead set
Test Conditions
- Fuse OK
- Battery voltage 12.5 V
- Ignition switched off
Start Diagnosis
-- Disconnect the EGR 2/Potentiometer -N213 or V339- electrical harness connector.
Checking internal resistance
-- Using a multimeter, check the EGR 2/Potentiometer -N213 or V339- terminals 2 and 6 for resistance.
Specified Value: 5.6 Ω (+/- 1 Ohm)
-- Using a multimeter, check the EGR 2/Potentiometer -N213 or V339- terminals 1 and 5 for resistance.
Specified Value: 175.5 Ω (+/- 40 Ohms).
If Any Of The Specified Values Are Not Obtained:
-- Replace the EGR 2/Potentiometer -N213 or V339-.
If The Specification Is Obtained:
Checking Voltage
-- Switch the ignition On.
-- Using a multimeter, check the EGR 2/Potentiometer -N213 or V339- electrical harness connector terminal 2 to Ground for voltage.
-- Using a multimeter, check the EGR 2/Potentiometer -N213 or V339- electrical harness connector terminal 6 to Ground for voltage.
-- Switch the ignition Off.
Specified Value For Each Test: Battery Voltage.
If The Specified Value Was Not Obtained:
-- Check the EGR 2/Potentiometer -N213 or V339- electrical harness terminal 2 or 6 for an for an open circuit, high resistance or a short circuit. Refer to Appropriate Wiring Diagrams for Pin/circuit locations.
-- Check the wiring connections for damage, corrosion, loose or broken terminals.
-- If necessary, repair the faulty wiring connection.
If The Specified Value Was Obtained:
Checking wiring
-- Remove the Motronic Engine Control Module (ECM) -J623-.
-- Using a multimeter, check the EGR 2/Potentiometer -N213 or V339- electrical harness connector terminal to the Motronic Engine Control Module (ECM) -J623- electrical harness connector T60 terminal for resistance. Refer to Appropriate Wiring Diagrams for Pin locations.
| EGR 2/Potentiometer -N213 or V339- electrical harness connector terminal | Motronic Engine Control Module (ECM) -J623- electrical harness connector T60 terminals |
|---|---|
| 1 | 25 |
| 2 | 34 |
| 3 | 53 |
| 5 | 41 |
| 6 | 49 |
Specified Value: 1.5 Ω Max.
If The Specification Was Not Obtained:
-- Check the wiring for high resistance, a short circuit to each other, Battery or Ground.
-- If necessary, repair the faulty wiring connection.
-- Check the electrical harness connector for damage, corrosion, loose or broken terminals.
If No Malfunction Is Detected In The Wiring And The Voltage Was Not Ok:
-- Replace the Motronic Engine Control Module (ECM) -J623-.
Final Procedures
After the repair work, the following work steps must be performed in the following sequence:
- Check the DTC memory. Refer to DIAGNOSTIC MODE 03 - READ DTC MEMORY .
- If necessary, erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .
- If the DTC memory was erased, generate readiness code. Refer to READINESS CODE .