Display group 1 -Basic functions-

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Fig 1: Identifying Display Group 1 - Basic Functions

Courtesy of VOLKSWAGEN OF AMERICA, INC.

Display Group 1 - Basic Functions

For Evaluation 1 in Fig 1, see EVALUATING DISPLAY GROUP 1, DISPLAY ZONE 1 - ENGINE SPEED (IDLING SPEED) .
For Evaluation 2 in Fig 1, see EVALUATING DISPLAY GROUP 4, DISPLAY ZONE 3 - COOLANT TEMPERATURE .
For Evaluation 3 in Fig 1, see EVALUATING DISPLAY GROUP 33, DISPLAY ZONE 1 - OXYGEN SENSOR CONTROL BEFORE CATALYTIC CONVERTER .
For Evaluation 4 in Fig 1, see 6 DIGIT NUMBER BLOCK SIGNIFICANCE .

Significance of 6 digit number block

6 DIGIT NUMBER BLOCK SIGNIFICANCE

Significance if display = 1
1	2	3	4	5	6	Significance
					1	Coolant temperature exceeds 80° C
				1		Engine speed below 2000 RPM
			1			Throttle valve closed
		1				Oxygen sensor control OK
	1					Idling switch closed
1						Air conditioner compressor switched off

EVALUATING DISPLAY GROUP 1, DISPLAY ZONE 1 - ENGINE SPEED (IDLING SPEED)

Indicated on display	Possible cause	Corrective action
Less than 800 RPM	Throttle valve control module sticking or faulty	Check throttle valve control module. See THROTTLE VALVE CONTROL MODULE, CHECKING .
Less than 800 RPM		Perform idling check. See IDLE SPEED CHECKING .
More than 880 RPM	Idling switch not closed/faulty	Check DTC Memory,. See Diagnostic Trouble Code (DTC) memory .
	Large amount of unmetered air (cannot be compensated for by the idling stabilization)	Check intake air system for leaks. See INTAKE AIR SYSTEM, CHECKING FOR LEAKS (UNMETERED AIR) .
	Throttle valve control module sticking/faulty	Check throttle valve control module. See THROTTLE VALVE CONTROL MODULE, CHECKING .
		Perform idling check. See IDLE SPEED CHECKING .