Notes on Display Group Diagnostic Charts

DIAGNOSTIC CHARTS

These charts shows the required checks to be carried out if the display values do NOT coincide with the specified values.

NOTE Before carrying out the following checks ensure that the A/C system and A/C compressor are switched OFF. Display Group Diagnostics and Read Measuring Block Value use the same charts.

DISPLAY GROUP GUIDELINES
^ Display groups 000 to 010 are used for general troubleshooting.
^ Display groups 011 to 045 are used for troubleshooting when driving performance problems exist and to evaluate components and systems that influence the exhaust.
^ Oxygen Sensor (O2S) control can be switched ON or OFF using display group 99.