Info

Ohmmeter on instrument cluster plug II pin 16 and plug on ABS

Test point 3

Ignition on Engine off

PST2 display 0 rpm

Engine idling PST2 display:

Tester display approximately equal to engine speed in rpm Troubleshooting: Switch off ignition

Pull off plug II on the instrument cluster Engine idling

Measure tire voltage between instrument cluster plug II, pin 15 and

Disconnect plug on DME control module (ME 5.2) or Disconnect plug IV on DME control module (ME 7.2) Switch ignition on

Measure the voltage between instrument cluster plug II, pin 15 and

Ohmmeter on instrument cluster plug II pin 15 and plug on DME control module (ME 5.2) pin 80 or ME 7.2 plug IV pin 17

See also Drive Links chapter, "Tachometer"

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