
Comfort and safety
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2. Check battery (see Chapter 4) – must be 70% charged.
3. Check motor/solenoid/linkage/bulbs/unit – visual check.
4. Fuse continuity – (do not trust your eyes) voltage at both sides with a
meter or a test lamp.
5. If used, does the relay click (if yes, jump to stage 8) – this means the relay
has operated, but it is not necessarily making contact.
6. Supply to switch – battery volts.
7. Supply from the switch – battery volts.
8. Supplies to relay – battery volts.
9. Feed out of the relay – battery volts.
10. Voltage supply to the motor – within 0.5 V of the battery.
11. Earth circuit (continuity or voltage) ...