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Activation
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Activation applies to
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Description
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Use
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Injector Cyl 1 (max 30s.)
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Crankshaft stationary.
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The processor control of the transistor grounding the circuit. The control module output to the injector is active for 10 sec. at 10Hz.
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Control of control module output, electric circuit and actuator operation. When the output is active, the injector should be heard operating. Otherwise, use a test lamp to locate the faulty lead/component.
Check the fuel flow as well if necessary.
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Injector Cyl 2 (max 30s.)
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Crankshaft stationary.
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The processor control of the transistor grounding the circuit. The control module output to the injector is active for 10 sec. at 10Hz.
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Control of control module output, electric circuit and actuator operation. When the output is active, the injector should be heard operating. Otherwise, use a test lamp to locate the faulty lead/component.
Check the fuel flow as well if necessary.
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Injector Cyl 3 (max 30s.)
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Crankshaft stationary.
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The processor control of the transistor grounding the circuit. The control module output to the injector is active for 10 sec. at 10Hz.
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Control of control module output, electric circuit and actuator operation. When the output is active, the injector should be heard operating. Otherwise, use a test lamp to locate the faulty lead/component.
Check the fuel flow as well if necessary.
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Injector Cyl 4 (max 30s.)
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Crankshaft stationary.
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The processor control of the transistor grounding the circuit. The control module output to the injector is active for 10 sec. at 10Hz.
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Control of control module output, electric circuit and actuator operation. When the output is active, the injector should be heard operating. Otherwise, use a test lamp to locate the faulty lead/component.
Check the fuel flow as well if necessary.
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Ignition Coil Cyl 1
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Crankshaft stationary.
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The processor control of the transistor grounding the circuit. The control module output to the ignition coil is active for 10 sec. at 200Hz.
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Control of control module output, electric circuit and actuator operation. Fit test spark plug. There should be a spark when the output is active. Otherwise, use a test lamp to locate the faulty lead/component.
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Ignition Coil Cyl 2
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Crankshaft stationary.
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The processor control of the transistor grounding the circuit. The control module output to the ignition coil is active for 10 sec. at 200Hz.
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Control of control module output, electric circuit and actuator operation. Fit test spark plug. There should be a spark when the output is active. Otherwise, use a test lamp to locate the faulty lead/component.
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Ignition Coil Cyl 3
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Crankshaft stationary.
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The processor control of the transistor grounding the circuit. The control module output to the ignition coil is active for 10 sec. at 200Hz.
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Control of control module output, electric circuit and actuator operation. Fit test spark plug. There should be a spark when the output is active. Otherwise, use a test lamp to locate the faulty lead/component.
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Ignition Coil Cyl 4
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Crankshaft stationary.
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The processor control of the transistor grounding the circuit. The control module output to the ignition coil is active for 10 sec. at 200Hz.
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Control of control module output, electric circuit and actuator operation. Fit test spark plug. There should be a spark when the output is active. Otherwise, use a test lamp to locate the faulty lead/component.
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Boost Press. Valve
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Crankshaft stationary.
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The processor control of the transistor grounding the circuit. The control module output to the injector is active for 10 sec. at 90Hz.
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Control of control module output, electric circuit and actuator operation. When the output is active, the injector should be heard operating. Otherwise, use a test lamp to locate the faulty lead/component.
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Idle Air Control Valve
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Crankshaft stationary.
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The processor control of the transistor grounding the circuit. The control module output to the valve is active for 10 sec. with current 0.6A.
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Control of control module output, electric circuit and actuator operation. When the output is active, the valve should open. Otherwise, use a test lamp to locate the faulty lead/component.
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Canister Purge Valve
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Crankshaft stationary.
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The processor control of the transistor grounding the circuit. The control module output to the injector is active for 10 sec. at 8Hz.
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Control of control module output, electric circuit and actuator operation. When the output is active, the injector should be heard operating. Otherwise, use a test lamp to locate the faulty lead/component.
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Preheating O2S 1
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Crankshaft stationary.
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The processor control of the transistor grounding the circuit. The control module output to preheating is active for 10 sec.
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Control of control output and electric circuit. When the output is active, sensor pin 1 should be grounded. Otherwise, use a test lamp to locate the faulty lead/component. Connect the test lamp between pins 2 and B+ when checking.
Note: Preheating is powered from the main relay (Saab 9-3 only). The main relay is not active when activating the preheating and the sensor will therefore not heat up. If necessary, the main relay circuit can be powered form fuse 16b during activation. Diagnostic trouble code P0135 will be generated irrespective of whether the sensor is connected or not. Diagnostic trouble codes must be cleared after activation.
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Preheating O2S 2
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Crankshaft stationary.
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The processor control of the transistor grounding the circuit. The control module output to preheating is active for 10 sec.
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Control of control output and electric circuit. When the output is active, sensor pin 1 should be grounded. Otherwise, use a test lamp to locate the faulty lead/component. Connect the test lamp between pins 2 and B+ when checking.
Note: Preheating is powered from the main relay (Saab 9-3 only). The main relay is not active when activating the preheating and the sensor will therefore not heat up. If necessary, the main relay circuit can be powered form fuse 16b during activation. Diagnostic trouble code P0141 will be generated irrespective of whether the sensor is connected or not. Diagnostic trouble codes must be cleared after activation.
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AC Relay
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Crankshaft stationary.
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The processor control of the transistor grounding the circuit. The control module output to the relay is active for 10 sec. at 1Hz.
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Checking the control module output, the electric circuit and the actuator function. When the output is active, the solenoid clutch should engage. Otherwise, use a test lamp to locate the defective lead/component.
The refrigerant circuit must also be OK.
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CHECK ENGINE Lamp
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Crankshaft stationary.
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The processor control of the transistor grounding the circuit. The control module output to the relay is active for 10 sec. at 1Hz.
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Control of control module output, electric circuit and actuator operation. When the output is active, the lamp should go on. Otherwise, use a test lamp to locate the faulty lead/component.
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SHIFT UP Lamp
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Crankshaft stationary.
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The processor control of the transistor grounding the circuit. The control module output to the relay is active for 10 sec. at 1Hz.
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Control of control module output, electric circuit and actuator operation. When the output is active, the lamp should go on. Otherwise, use a test lamp to locate the faulty lead/component.
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Fuel Pump Relay
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Crankshaft stationary. Activation time is limited to 30 seconds.
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The processor control of the transistor grounding the circuit. The control module output to the relay is active for 10 sec. at 1Hz.
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Control of control module output, electric circuit and actuator function. Note: The fuel pump relay is powered from the main relay (Saab 9-3 only). The main relay is not active when activating the fuel pump relay and the pump will therefore not be heard operating. If necessary, the main relay circuit can be powered form fuse 16b during activation.
Check the fuel pressure as well if necessary.
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Main Relay
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Crankshaft stationary.
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The processor control of the transistor grounding the circuit. The control module output to the relay is active for 10 sec. at 1Hz.
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Control of control module output, electric circuit and actuator operation. When the output is active, a test lamp connected between pins 6 and 10 on the ignition discharge module connector should go on. Otherwise, use a test lamp to locate the faulty lead/component.
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Idling Adaption
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Crankshaft stationary.
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Current throttle position is adapted to a value for closed throttle.
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This can be used to ensure the control module quickly finds the idle speed position of the throttle after it has been adjusted.
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Boost Press. Reset
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Crankshaft stationary.
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Zeros boost pressure adaptation.
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This should be activated after working on the boost pressure control. Generally speaking, adaptation will be at its end limit if such a fault has occurred. Otherwise, the fault may still seem to be present when road testing.
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Brake Vacuum Pump
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Crankshaft stationary.
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Processor control of transistor that grounds the circuit.
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Control of control module output, electric circuit and actuator operation. When the output is active, the injector should be heard operating. Otherwise, use a test lamp to locate the faulty lead/component.
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Canister Close Valve
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Crankshaft stationary.
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Processor control of transistor that grounds the circuit.
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Control of control module output, electric circuit and actuator operation. When the output is active, the injector should be heard operating. Otherwise, use a test lamp to locate the faulty lead/component. For integrity check of EVAP system. Note: The control module accepts max. 140 sec. activation, after which the valve will be released for a moment before being reactivated. For longer activation, the valve must be powered with special leads.
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EVAP Integrity Diagnose
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Crankshaft stationary.
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The cold start diagnosis is initiated irrespective of the engine coolant temperature when starting.
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For integrity check of EVAP system.
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