Operation CHARM: Car repair manuals for everyone.
Home >> Isuzu >> 1989 >> Impulse L4-2.3L (4ZD1) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Relays and Modules - Computers and Control Systems >> Engine Control Module >> Diagrams >> Diagram Information and Instructions >> Symbol Identification
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

Symbol Identification

Schematic Symbols:






WIRE COLOR CODE IDENTIFICATION

Black: B
Blue: L
Brown: Br
Gray: GY
Green: G
Light Green: Lg
Orange: O
Pink: P
Red: R
Sky Blue: Sb
Violet: V
White: W
Yellow: Y
pro multis · About Operation CHARM