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Output Devices


[Output Device]




A/C Relay
- If the circuit is open, the air conditioner (Magnetic clutch) will not operate.
- If the circuit is shorted, the air conditioner will constantly operate when blower is ON, causing rough idle.




Air Pump Relay
- If the relay or circuit has an open or short, Trouble Code No. 54 is output.
- If the circuit is short, air pump will always operate, causing three-way catalyst melted.
- If the circuit is open, the air pump will never operate, causing rough idle.




Fan Relay
- If the. circuit is shorted, the coolant fan will always operate while the ignition switch ON.
- If the circuit is open, the coolant fan will not operate until the engine temperature exceeds 108°C (226°F).




FEN Terminal (Data Link Connector)
- If the circuit between the data link connector and E/L unit is open, the Self-Diagnosis Checker buzzer will not sound during the trouble code check.
- If the circuit between PCME 1 F terminal and E/L unit is open, the Self-Diagnosis Checker buzzer will constantly sound during the trouble code check.
- If the circuit is shorted, code "88" will keep flashing and the buzzer will continue sounding (Self-Diagnosis Checker), preventing a trouble code check.




Fuel Injector
- If a secondary injector or circuit has an open or short, Trouble Code No. 71 (Front) or 73 (Rear) is output, causing poor acceleration and lack of engine power.
- If a primary injector or circuit has an open, engine will stall and will not start.

Fuel Pump Relay
- If the circuit is open, the engine will not start.
- If the circuit is shorted, the fuel pump will operate whenever the ignition switch is ON.




Fuel Pump Relay (Speed)
- If the relay or circuit has an open or short, Trouble Code No. 51 is output.
- If the circuit is open, engine will hesitate or engine power will lack.




Idle Air Control Valve
- If the solenoid valve or circuit has an open or short, Trouble Code No. 34 is output.
- If the circuit is open, the valve will always closed throttle position, causing rough idle and hard starting. - If the circuit is shorted, the valve will always wide open throttle, causing high idle speed. (After warm-up, engine hunts at approx. 1500 rpm.)




Igniter
- If a trailing igniter or circuit has an open or short, idle speed will be slightly decreased and poor acceleration will be cased
- If the leading igniter or circuit has an open or short, hard starting and rough idle will be caused.




MEN Terminal (Data Link Connector)
- If the circuit is open, the monitor lamp will not illuminate.
- If the circuit is shorted, the monitor lamp will stay on.




Metering Oil Pump
- If the pump or circuit has an open or short, Trouble Code No. 26 and 27 are output.
- In the above conditions, PCME fixes ignition timing and fuel injection amount, causing engine poor acceleration.

Powertrain Control Module Transmission (PCMT) (A/T)
- Refer to Transmission Control Systems.




Secondary Air Bypass Valve
- If the solenoid valve or circuit has an open or short, Trouble Code No. 31 is output.
- If the circuit is open, no symptom will be noticed.
- If the circuit is shorted, solenoid/valve will be always open and CO and HC will be increased.




Secondary Air Switching Valve
- If the solenoid valve or circuit has an open or short, Trouble Code No. 32 is output.
- If the circuit is open, no symptom will be noticed.
- If the circuit is shorted, rough idle will result.




Solenoid Valve (Accelerated Warm-Up System)
- If the solenoid valve or circuit has an open or short, Trouble Code No. 38 is output.
- If the circuit is open, the fast idle speed just after engine starting will not exceed 2,000 rpm.
- If the circuit is shorted, the idle speed will be increased and then hunted at the specified speed (approx. 1500 rpm after warm-up).




Solenoid Valve (Charge Control)
- If the solenoid valve or circuit has an open or short, Trouble Code No. 45 is output.
- In the above conditions, the PCME fixes the ignition timing and fuel injection amount, causing poor acceleration and lack of power.




Solenoid Valve (Charge Relief)
- If the solenoid valve or circuit has an open or short, Trouble Code No. 46 is output.
- If the circuit is open, the charge relief valve will always open, causing poor acceleration.
- If the circuit is shorted, the charge relief valve will always be closed, causing momentarily intake air noise on acceleration.




Solenoid Valve (Double Throttle Control)
- If the solenoid valve or circuit has an open or short, Trouble Code No. 50 is output.
- If the circuit is open, the double throttle valve will always closed, causing poor acceleration and lack of power.
- If the circuit is shorted, the double throttle valve will always open, causing hesitation when the engine is cold.




Solenoid Valve (EGR)
- If the solenoid valve or circuit has an open or short, Trouble Code No. 28 is output.
- If the circuit is open, no symptom will be noticed.
- If the circuit is shorted, the EGR valve will always open, causing engine stalling and hard starting.




Solenoid Valve (Port Air Bypass)
- If the solenoid valve or circuit has an open or short, Trouble Code No. 33 is output.
- In the above conditions, no symptom will be noticed.




Solenoid Valve (Pressure Regulator Control)
- If the solenoid valve or circuit has an open or short, Trouble Code No. 25 is output.
- If the circuit is open, hard starting may result when the engine is hot.
- If the circuit is shorted, fuel pressure will always be approx. 280 kPa (2.9 kgf/cm2, 41 psi) and no symptom will be noticed.




Solenoid Valve (Purge Control)
- If the solenoid valve or circuit has an open or short, Trouble Code No. 40 is output.
- If the circuit is open, no symptom will be noticed.
- If the circuit is shorted, the engine stalls at low speed.




Solenoid Valve (Relief 2)
- If the solenoid valve or circuit has an open or short, Trouble Code No. 39 is output.
- If the circuit is open, no symptom will be noticed.
- If the circuit is shorted, secondary air noise will be heard while the air pump operates.




Solenoid Valve (Split Air Bypass)
- If the solenoid valve or circuit has an open or short, Trouble Code No. 30 is output.
- In the above conditions, no symptom will be produced.




Solenoid Valve (Turbo Control 1, Turbo Control 2)
- If the solenoid valve or circuit has an open or short, Trouble Code No. 44 is output.
- If the circuit is open, the turbo control valve will not open, causing poor acceleration and lack of power.
- If the circuit is shorted, turbo control valve will open earlier on acceleration, causing poor acceleration.




Solenoid Valve (Turbo Precontrol)
- If the solenoid valve or circuit has an open or short, Trouble Code No. 42 is output.
- If the circuit is open, the precontrol valve will open earlier, causing slightly hesitation and poor acceleration.
- If the circuit is short, precontrol valve will never open, causing hesitation and poor acceleration.




Solenoid Valve (Wastegate Control)
- If the solenoid valve or circuit has an open or short, Trouble Code No. 43 is output.
- If the circuit is open, wastegate valve will open earlier, causing poor acceleration and lack of power.
- If the circuit is shorted, wastegate valve will not open easily and no symptom will be noticed. (To prevent engine damage, the overboost fuel cut will be operated.)

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