Initiating output Diagnostic Test Mode:

Indicated on display

Fig 1: VAG 1551 Scan Tool Display - Output Diagnostic Test Mode, Instrument Cluster With Maintenance Interval Extension (Select Function XX)

Press buttons -0- and -3-. This selects "output Diagnostic Test Mode (DTM)," function 3.

Indicated on display

Fig 2: VAG 1551 Scan Tool Display - Output Diagnostic Test Mode, Instrument Cluster With Maintenance Interval Extension

Press -Q- button to confirm input: Output Diagnostic Test Mode for analog displays is initiated immediately.

Indicated on display

Fig 3: VAG 1551 Scan Tool Display - Output Diagnostic Test Mode, Instrument Cluster With Maintenance Interval Extension (Analog Indicator)

The following tests are performed simultaneously:

Sweep of coolant temperature needle through entire display range
Sweep of tachometer needle through entire display range
Sweep of speedometer needle through entire display range
Sweep of fuel gauge needle through entire display range

After sweep of display ranges, the following fixed values are displayed:

Engine Coolant Temperature (ECT) gauge: 1/2

Tachometer: 3000 1/min

Speedometer: 62 mph

Fuel gauge: 1/2

NOTE: Switching ignition on and off will stop any needle sweep that has started.

Press --> button.

Indicated on display

Fig 4: VAG 1551 Scan Tool Display - Output Diagnostic Test Mode, Instrument Cluster With Maintenance Interval Extension (Controlled Light Test Instrument Cluster)

All lamps are switched on that are activated by the processor.

Press --> button.

Indicated on display

Fig 5: VAG 1551 Scan Tool Display - Output Diagnostic Test Mode, Instrument Cluster With Maintenance Interval Extension (Seatbelt Warning Light)

Seat belt warning light is activated.

NOTE: Depending on options/version, the seat belt warning light may be activated by the control module coding, that is, if this actuator test is omitted, the warning light is not active.

Press --> button.

Indicated on display

Fig 6: VAG 1551 Scan Tool Display - Output Diagnostic Test Mode, Instrument Cluster With Maintenance Interval Extension (Gong)

Chime is activated and sounds the entire time.

Press --> button.

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Fig 7: VAG 1551 Scan Tool Display - Output Diagnostic Test Mode, Instrument Cluster With Maintenance Interval Extension (Segment Test)

All display points of the driver information display, the LCD clock/date indicator and the LCD trip odometer are activated.

Press --> button.

Indicated on display

Fig 8: VAG 1551 Scan Tool Display - Output Diagnostic Test Mode, Instrument Cluster With Maintenance Interval Extension (Switch And Instrument Lighting)

Instrument cluster illumination is automatically set twice to bright and dark and then switched to maximum illumination (bright).

Press --> button.

Indicated on display

Fig 9: VAG 1551 Scan Tool Display - Output Diagnostic Test Mode, Instrument Cluster With Maintenance Interval Extension (End)

Press --> button to end output Diagnostic Test Mode.

The tester returns to the "Select function" mode.

Indicated on display

Fig 10: VAG 1551 Scan Tool Display - Output Diagnostic Test Mode, Instrument Cluster With Maintenance Interval Extension (Select Function XX)