isuzu Workshop Repair Guides

Isuzu Workshop Service and Repair Manuals

Diagram Information and Instructions|Page 1888 > < Diagram Information and Instructions|Page 1886
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OBD II Symbol

The OBD II symbol is used on circuit diagrams to alert the technician that the circuit is essential for proper OBD II emission control circuit operation.
Any circuit which, if it fails, causes the SERVICE ENGINE SOON indicator to turn on, is identified as an OBD II circuit.

Diagram Information and Instructions|Page 1888 > < Diagram Information and Instructions|Page 1886