Dakota 2WD L4-2.5L VIN P (2001)
Brake Light Switch: Testing and Inspection
Fig.1 Brake Lamp Switch Terminal Identification
The brake lamp switch can be tested with an ohmmeter. The ohmmeter is used to check continuity between the pin terminals.
Switch Circuit Identification
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Terminals 1 and 2: brake lamp circuit
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Terminals 3 and 4: RWAL/ABS module and Powertrain Control Module (PCM) circuit
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Terminals 5 and 6: speed control circuit
Switch Continuity Test
NOTE: Disconnect switch harness before testing switch continuity.
With switch plunger extended, attach test leads to pins 1 and 2. Replace switch if meter indicates no continuity.
With switch plunger retracted, attach test leads to pins 3 and 4. Replace switch if meter indicates no continuity.
With switch plunger retracted, attach test leads to pins 5 and 6. Replace switch if meter indicates no continuity.