Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Safety Circuit Breaker: Service Precautions






Pyrotechnic Battery Isolator Safety Precautions

Testing, assembly, and repairs may only be performed by trained personnel.

Battery Ground (GND) strap must be disconnected before performing any work on the battery isolation system.

Technician(s) must discharge themselves electrostatically before touching the battery isolator. This is accomplished by touching grounded metal like, for example, water pipes, heating pipes or metal carriers.

Always install battery isolator units in the vehicle as soon as they are removed from the packaging

If installation work is interrupted, IMMEDIATELY return the battery isolator unit to its original packaging.

Battery isolator units must never be left out unattended.

DO NOT install battery isolator units that have fallen onto a hard surface, or which have signs of damage.

Storage and transport are subject to laws for explosive substances.