ENGINE (DIAGNOSTICS)(H4DO) > General Description
INSPECTION
Before performing diagnostics, check the following item which might affect engine problems.
1. BATTERY
1. Check the battery. Battery > INSPECTION">
2. Check the condition of the main and other fuses, and harnesses and connectors. Also check for proper grounding.
2. ENGINE GROUND
Make sure that the engine ground terminal has no contamination, corrosion or looseness and is properly connected to the engine.

Preparation tool
NoteTo help prevent corrosion
Wash the vehicle regularly to prevent
corrosion of the body and suspension
components. Also, wash the vehicle
promptly after driving on any of the
following surfaces.
roads that have been salted to prevent
them from freezing in winter
mud, sand, or gravel
coastal roads
After the win ...
Installation
SECURITY AND LOCKS > Starter Relay (Push Button Start)INSTALLATIONCAUTION:Before handling the airbag system components, refer to “CAUTION” of “General Description” in “AIRBAG SYSTEM”. General Description > CAUTION">Install each part in the reverse o ...
Dtc u0402 invalid data received from tcm
ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC U0402 INVALID DATA RECEIVED FROM TCMNOTE:For the diagnostic procedure, refer to LAN section. Basic Diagnostic Procedure">1. OUTLINE OF DIAGNOSISDetect malfunction of CAN communication.Judge as NG when ...