Diagnostic Tests: Notes
WARNING: This page is about a different car, the 2002 Hyundai XG350. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Before proceeding, see ANTI-LOCK BRAKE SAFETY PROCEDURES
article in GENERAL INFORMATION.
CAUTION:
When battery or ECM is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until adaptation systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES - IMPORT article in GENERAL INFORMATION before disconnecting battery.
NOTE:
To properly diagnose vehicle, it is recommended to use HI-SCAN (PRO) scan tool. Before replacing any component that scan tool suggests are faulty. Ensure that all wiring connections and harness connectors are okay. Ensure that power and ground circuits are functioning properly. For circuit identification, see WIRING DIAGRAMS
.