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)

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Backup Lamp: Testing and Inspection

Back-up Light System

INSPECTION

1. BACK-UP LIGHT SWITCH (MT MODEL)
Measure the resistance between the back-up light switch terminals.






2. INHIBITOR SWITCH (4AT MODEL)
Measure the resistance between the inhibitor switch terminals.






3. BACK-UP LIGHT RELAY (5AT MODEL)
Measure the resistance between headlight relay terminals when connecting terminal No. 4 to the battery positive terminal and terminal No. 3 to the battery ground terminal.






NOTE: Checks other than the back-up light relay.