Prelude L4-2056cc DOHC (1990)
Vehicle Speed Sensor: Service and Repair
A/T Speed Pulser Removal/Inspection
1. Remove the 6 mm bolt from the transmission housing and remove the A/T speed pulser assembly.
2. Bring a magnet close to the A/T speed pulser assembly and check for continuity.
A/T speed pulser assembly is in good condition if there is:
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Continuity with a magnet close to the pulser assembly.
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No continuity with a magnet away from the pulser assembly.
If the A/T speed pulser is normal, go to ATV Pulser Rotor Disassembly/Inspection/Reassembly.
3. Replace the 0-ring with a new one before reassembling the A/T speed pulser.
CAUTION: Carefully inspect the All speed pulser before installing. Do not install it if it shows signs of being dropped or improperly handled.
