GMC Workshop Service and Repair Manuals > V 3500 P/U 4WD V8-350 5.7L VIN M 4-bbl (1987) > Powertrain Management | Ignition System | Relays and Modules - Ignition System | Electronic Spark Timing <--> [Electronic Spark Control Module] | Component Information | Locations

Electronic Spark Timing <--> [Electronic Spark Control Module]|Locations|Page 2606 > < With TBI|Page 2601

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Fig. 47 Typical ESC Controller

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

Electronic Spark Timing <--> [Electronic Spark Control Module]|Locations|Page 2606 > < With TBI|Page 2601