STEP 1. Using scan tool MB991958, read the diagnostic trouble code (DTC).
caution | To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958. |
(1) Connect scan tool MB991958 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Read the DTC.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Is any DTC set?
Refer to, Diagnostic Trouble Code Chart . Refer to GROUP 17, Emission Control - Evaporative Emission Control System - Evaporative Emission Control System Check (purge flow check) .