Workshop Manuals Factory service & repair Alfa Romeo
01 145 electrical system diagnosis02 146 electrical system diagnosis03 ABS, Alfa Romeo Code and engine management
Alfa Romeo 145/146 Electrical System Diagnosis Manual, Volume 3 (1994-2001)01 · 145 electrical system diagnosis
01 · Diagnostics

Checking components

Make
Alfa Romeo
Model
145/146 Electrical System Diagnosis Manual, Volume 3
Year
1994–2001
Section
Instrument Cluster › Checking components
145 electrical system diagnosisChecking components

CHECKING COMPONENTS

Speedometer sensor L17

Speedometer sensor location on Boxer engine

Output signal (with car on the move): voltage at pin 2: pulses per turn

Waveform diagram showing speedometer sensor output signal

NOTE: The sensor differs, in the shape and internal functioning for the different options, but the output signal is the same.

T.Spark sensor location on engine

Rpm sensor L16 (TD only)

Rpm sensor location on engine
SPECIFICATIONS
Magnetic induction sensor
Coil resistance680 Ω ± 15%
Inductance295 mH ± 10%
Gap on flywheel ring gear0.25 ÷ 1.3 mm

Parts & tools for this job For 1994 Alfa Romeo 145/146

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