Output Signals
The ECU processes information from the input sensors and sends appropriate voltage control signals to control devices. Not all devices are used on all models. For theory and operation of specific output components, refer to system indicated in brackets.
- Secondary Air Control System (I-Mark, 1.6L - Air Induction Systems)
- Air Injection Vacuum Switching Valve (Except Trooper II, 2.6L - Emission Systems)
- Canister Purge Vacuum Switching Valve (Emission Systems)
- EGR Vacuum Switching Valve (Emission Systems)
- Electronic Spark Timing (Except I-Mark 1.6L & Trooper II, 2.8L - Ignition System)
- Electronic Spark Control (Trooper II 2.8L - Ignition System)
- Fuel Injectors (Fuel Control)
- Fuel Pump Control (I-Mark 1.6L & 1.5L, Trooper II 2.8L, Impulse - Fuel Delivery)
- Idle Air Control Valve (I-Mark 1.5L & 1.6L, Trooper II 2.8L, Impulse - Idle Speed)
- Power Transistor (Ignition System)
- Self-Diagnostics (Self-Diagnostic System)
- Turbocharger Wastegate Control Vacuum Switching Valve (I-Mark, 1.5L - Air Induction Systems)