24-165
Vehicle speed signal, checking
Notes:
The vehicle speed signal is generated by the
speedometer Vehicle Speed Sensor (VSS) -
G22- (at transmission) and is processed in the
instrument cluster.
The processed signal enters at terminal 54 of
the ECM and is used for idle stabilization and
tip-in shock reduction during shifting.
Test requirement:
Function and display of speedometer OK.
Troubleshooting:
Repair Manual, Electrical Equipment, Repair
Group 90; Instrument cluster; Speed signal, checking
Test sequence
WARNING!
To reduce the risk of accident during road
tests, always observe safety precautions
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