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BRAKE LAMP SWITCH CIRCUIT (CONTINUED) 3. MEASURE THE RESISTANCE OF THE BRAKE LAMP SWITCH A OUTPUT CIRCUIT Turn the ignition off. Measure the resistance of the Brake Lamp Switch A Output circuit Is the resistance below 5.0 ohms? Yes >> Go to 4 No >> Repair the Brake Lamp Switch A Output circuit for an open. Perform ABS VERIFICATION TEST. 4. MEASURE RESISTANCE BETWEEN GROUND AND THE BRAKE LAMP SWITCH A OUTPUT CIRCUIT With the ignition off. Measure the resistance between ground and the Brake Lamp Switch A Is the resistance above 100 kohms? Yes >> Adjust or replace the Brake Lamp Switch. Perform ABS VERIFICATION TEST. No >> Repair the Brake Lamp Switch A Output circuit for a short to ground. Perform ABS VERIFICATION TEST. ZH BRAKES - ABS ELECTRICAL DIAGNOSTICS 5 - 225 |