Microcheck

Microcheck

The following pages contain various fault finding charts and tables which should be used as an aid to diagnosis.

If a system can be checked by using MICROCHECK this should always be done first, before the charts and tables are used.

Tips and Precautions

Before Fault Finding

• Check applicable fuses in the appropriate fuse/relay box.
• Check the battery for damage, state of charge, and clean and tight connections.
• Check the alternator belt tension.

CAUTION:

• Do not quick – charge a battery unless the battery earth cable has been disconnected. Otherwise, you will damage the alternator diodes.
• Do not attempt to crank the engine with the battery earth cable loosely connected or you will severely damage the wiring.

Handling Connectors

• Make sure the connectors are clean and have no loose wire terminals.
• Make sure multiple cavity connectors are packed with grease (except watertight connectors)

86M 1911

1. A Locking tab

• All connectors have push – down release type locks.
• Some connectors have a clip on their side used to attach them to a bracket on the body or on another component. This clip has a pull type lock.

86M 1912

• A Locking tab on other half of connector
• B Pull to disengage
• C Bracket

• Some mounted connectors cannot be disconnected unless you first release the lock and remove the connector from its bracket.
• Never try to disconnect connectors by pulling on their wires; pull on the connector halves instead.

86M 1913

• Always reinstall plastic covers.

86M 1914

1. A Bent terminal

• Before connecting connectors, make sure the terminals are in place and not bent.

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