GMC Workshop Service and Repair Manuals > V 1500 P/U 4WD V8-454 7.4L (1987) > Powertrain Management | Computers and Control Systems | Relays and Modules - Computers and Control Systems | Electronic Spark Timing <--> [Electronic Spark Control Module] | Component Information | Locations

Electronic Spark Timing <--> [Electronic Spark Control Module]|Locations|Page 2353 > < Oxygen Sensors - Silica Contamination|Page 2348

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Fig. 47 Typical ESC Controller

Powertrain Management
Computers and Control Systems
Relays and Modules - Computers and Control Systems
Electronic Spark Timing <--> [Electronic Spark Control Module]
Component Information
Locations

Electronic Spark Timing <--> [Electronic Spark Control Module]|Locations|Page 2353 > < Oxygen Sensors - Silica Contamination|Page 2348