Work step: 4

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 1999 Volkswagen Jetta, 1999 Volkswagen GTI, 1998 Volkswagen Jetta, 1998 Volkswagen GTI, and 1997 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.

Diagnostic test: Engine warm -up continued (calculated temperature of three way catalytic converter)

Display will appear as shown

Fig 1: Identifying Scan Tool Display - Function 15, Work Step 4 (1 Of 3)

Press -0- and -4- buttons to select "Basic setting" function 04.
Press -Q- button to enter input.

Display will appear as shown

Fig 2: Identifying Scan Tool Display - Function 15, Work Step 4 (2 Of 3)

Press buttons -1-, -0- and -3- to input display group 103.
Press -Q- button to enter input.

Display will appear as shown (1 -4 = display fields)

Fig 3: Identifying Scan Tool Display - Function 15, Work Step 4 (3 Of 3)

Increase engine speed to 2200-3300 RPM and wait until three way catalytic converter temperature reaches specifications.

DISPLAY GROUP: 103, FUNCTION: 04

	Display fields
	1	2	3	4
Display group: 103		Function: 04
Display	Engine load	xxx.x °C	xxx.x °C	xxxx xxxx
Indicated	-	Engine coolant temperature	Three way catalytic converter temperature (calculated)	Diagnostic conditions
Specification	-	At least 60 °C	At least 360 °C	xx1x xx00
Working range	1.4 to 2.4 ms.	-46.5° to 141.0 °C	0.0° to 999.9 °C	x = Not relevant

RELEVANCE OF 8 DIGIT NUMBER BLOCK IN DISPLAY FIELD 4

Relevance of 8 digit number block in display field 4
1	2	3	4	5	6	7	8	Specifications of diagnostic conditions
		1						Oxygen Sensor (O2S) control active
						0		Diagnosis malfunction free
							0	DTC memory malfunction free

Press -C- button.