Display group overview

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.

Fig 1: Display Group Overview

If one of the specifications are not attained, see DISPLAY GROUP 000 MALFUNCTION CAUSE REFERENCE .
For additional steps see Repair procedures.

NOTE:

press --> button to end "Read Measuring Value Block".
After terminating "Read Measuring Value Block", press buttons -0- and -6- to input "End Output" function 06 and press -Q- button to confirm input.

EVALUATING DISPLAY GROUP 000

Evaluating display group 000
Display field: 1	Possible malfunction cause	Malfunction elimination
More than 204	Engine Coolant Temperature (ECT) sensor	Check ECT sensor, see ENGINE COOLANT TEMPERATURE (ECT) SENSOR, CHECKING
Less than 170	ECT sensor Thermostat faulty (open)	Check thermostat, see ENGINE - COOLING SYSTEM - 2.8 L VR6 2V - AAA
Display field: 2	Possible malfunction cause	Malfunction elimination
More than 58	Electrical consumer switched on Oxygen Sensor (O2S) control on limit	Switch off electrical consumers Check Heated Oxygen Sensor (HO2S) and O2S control (before three way catalytic converter): see HEATED OXYGEN SENSOR (HO2S) AND OXYGEN SENSOR (O2S) CONTROL, CHECKING (BEFORE THREE WAY CATALYTIC CONVERTER) Check O2S engine (before three way catalytic converter): see OXYGEN SENSOR (O2S) AGING, CHECKING (BEFORE THREE WAY CATALYTIC CONVERTER)
Less than28	Unmetered air (outside air) Fuel pressure regulator faulty/hose fallen off	Check intake air system for leaks (outside air): see INTAKE AIR SYSTEM (OUTSIDE AIR), CHECKING FOR LEAKS Check fuel pressure regulator: see FUEL PRESSURE REGULATOR AND RESIDUAL PRESSURE, CHECKING
Display field: 3	Possible malfunction cause	Malfunction elimination
Less than 65	Driving range selected Throttle valve control module faulty	Selector lever in P or N position Check throttle valve control module, see THROTTLE VALVE CONTROL MODULE, CHECKING
More than 80	Closed throttle position switch closed Throttle valve control module faulty Unmetered air	Check throttle valve control module, see THROTTLE VALVE CONTROL MODULE, CHECKING Check intake air system for leaks (outside air), see INTAKE AIR SYSTEM (OUTSIDE AIR), CHECKING FOR LEAKS
Display field: 4	Possible malfunction cause	Malfunction elimination
Less than 176	Generator faulty Battery discharged/faulty	Check Engine Control Module (ECM) voltage supply, see ENGINE CONTROL MODULE (ECM) VOLTAGE SUPPLY, CHECKING Check generator Check battery
More than 212	Voltage regulator faulty	Check voltage regulator
Display field: 5	Possible malfunction cause	Malfunction elimination
Less than 0	Not possible	-
More than 23	Basic setting of throttle valve control module has not been performed Throttle valve control module faulty Accelerator pedal cable adjustment	Perform basic setting, see BASIC SETTING, INITIATING Check throttle valve control module, see THROTTLE VALVE CONTROL MODULE, CHECKING Adjust accelerator pedal cable, see ACCELERATOR PEDAL CABLE, ADJUSTING
Display field: 6+7	Possible malfunction cause	Malfunction elimination
Less than 112	Unmetered air after throttle valve	Check intake air system for leaks (outside air), see INTAKE AIR SYSTEM (OUTSIDE AIR), CHECKING FOR LEAKS
More than 144	Increased engine load	Switch off electrical consumers
Display field: 8	Possible malfunction cause	Malfunction elimination
Less than 96	Engine too rich, O2S control weakens mixture O2S control at limit Lots of fuel from EVAP canister Fuel pressure regulator faulty/hose fallen off	Check HO2S and O2S control (before three way catalytic converter), see HEATED OXYGEN SENSOR (HO2S) AND OXYGEN SENSOR (O2S) CONTROL, CHECKING (BEFORE THREE WAY CATALYTIC CONVERTER) Check fuel pressure regulator, see FUEL PRESSURE REGULATOR AND RESIDUAL PRESSURE, CHECKING
More than 160	Engine too lean, O2S control enriches mixture Unmetered air (outside air) Fuel injectors faulty O2S control at limit	Check HO2S and O2S control (before three way catalytic converter), see HEATED OXYGEN SENSOR (HO2S) AND OXYGEN SENSOR (O2S) CONTROL, CHECKING (BEFORE THREE WAY CATALYTIC CONVERTER) Check intake air system for leaks (outside air), see INTAKE AIR SYSTEM (OUTSIDE AIR), CHECKING FOR LEAKS Check fuel injectors, see FUEL INJECTORS, CHECKING
128	Shortage of fuel O2S control blocked	Check amount of fuel in tank Check HO2S and O2S control (before three way catalytic converter), see HEATED OXYGEN SENSOR (HO2S) AND OXYGEN SENSOR (O2S) CONTROL, CHECKING (BEFORE THREE WAY CATALYTIC CONVERTER)
Display field: 9	Possible malfunction cause	Malfunction elimination
Less than 241 or more than 14	See EVALUATING DISPLAY GROUP 025
Display field: 10	Possible malfunction cause	Malfunction elimination
Less than 118 or more than 138	See EVALUATING DISPLAY GROUP 025