Flow Chart No. 6: Door Locks Work Intermittently

Flow Chart No. 6 - Symptom - Door locks work intermittently.

Step 1
Check connections.
1. Access all related components and check for corrosion and tightness.




2. Are connectors OK?

Step 2
Check ground circuit at right-hand switch.
1. Using an ohmmeter connected to a known good ground, connect other lead to B circuit at switch.
2. Measure resistance of each circuit.




3. Is resistance 5 ohms or less?