FixVault
Home
›
Volvo
›
1989
›
740 GL, 4D Sedan, Automatic
›
Repair and Diagnosis
›
Engine Performance
›
System
›
Tests W/Codes - Non-Turbo
›
Entering Self-Diagnostics (Ignition System) Control Functions
›
Retrieving Codes (Ignition System) Control Function No. 1
Retrieving Codes (Ignition System) Control Function No. 1
CAUTION:
Never connect or disconnect ECU connector with ignition in the "ON" position.