The waveform is similar to that shown in the illustration.
HINT
When the system is functioning normally, one wheel revolution generates 4 pulses. As the vehicle speed increases, the width
indicated by (A) in the illustration narrows.
Text in Illustration
NG -- GO TO METER / GAUGE SYSTEM See: Instrument Panel, Gauges and Warning Indicators/Testing and
Inspection/Component Tests and General Diagnostics/Speed Signal Circuit
OK -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR
(a) Disconnect the G4 display and navigation module display connector.
(b) Disconnect the F15 combination meter assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Text in Illustration
NG -- CHECK HARNESS AND CONNECTOR (DISPLAY AND NAVIGATION MODULE DISPLAY - JUNCTION
CONNECTOR)
OK -- REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY See: Accessories and Optional Equipment/Navigation
System/Service and Repair/Navigation Receiver (for HDD)/Removal
4. CHECK HARNESS AND CONNECTOR (DISPLAY AND NAVIGATION MODULE DISPLAY - JUNCTION CONNECTOR)
(a) Disconnect the G4 display and navigation module display connector.
(b) Disconnect the F93 junction block connector.
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