Test Procedure
-- Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK
Start diagnosis
-- Engine MUST be at room temperature.
-- Disconnect the EGR Motor -V338- /EGR Potentiometer -G212- connector.
-- Using a Multimeter, Check the EGR Motor -V338- /EGR Potentiometer -G212- electrical harness connector terminals 1 to 3 for voltage.
Specified value: about 5.0 V
-- Switch the ignition Off.
Continue test according to the following table:
| Value | Cause | Test |
|---|---|---|
| If the specified value was not obtained: | Open or shorted circuit | Checking Wiring |
| If the specified value was obtained: | Check reference / Motor signal circuit | Checking Wiring |