[13B] MULTIPOINT FUEL INJECTION (MPI) <4G64> - - DIAGNOSIS SYSTEM | PRINT PAGE / INDEX / PRIOR / NEXT

DIAGNOSIS SYSTEM Engine -A/T-ECU has been provided with the following functions for easier system inspection.
DIAGNOSIS CODE The diagnosis and engine warning lamp items are given in the table below.
Code No. | Diagnosis item | Main diagnosis contents | Engine warning lamp
--- | --- | --- | ---
12 | Air flow sensor system | Open circuit or short-circuit in sensor-related circuits | ON
13 | Intake air temperature sensor system | Open circuit or short-circuit in sensor-related circuits | ON
14 | Throttle position sensor system | Open circuit or short-circuit in sensor-related circuits | ON
21 | Engine coolant temperature sensor system | Open circuit or short-circuit in sensor-related circuits | ON
22 | Crank angle sensor system | Abnormal sensor output | ON
23 | Camshaft position sensor system | Abnormal sensor output | ON
24 | Vehicle speed signal system | Abnormal sensor output | -
25 | Barometric pressure sensor system | Open circuit or short-circuit in sensor-related circuits | ON
31 | Detonation sensor system | Abnormal sensor output | ON
41 | Injector system | Open circuit or short-circuit in injector-related circuits | ON
44 | Ignition coil (power transistor) system | Abnormal ignition signal (Mis-firing) | ON
54 | Immobilizer system | Open circuit or short-circuit in system-related circuits | ON
64 | Alternator FR terminal system | Open circuit or short-circuit in system-related circuits | -
- | Engine-A/T-ECU | Abnormality in engine-ECU | ON
DATA LIST FUNCTION The data list items are given in the table below
Item No. | Inspection item | Unit
--- | --- | ---
12 | Air flow sensor | Hz
13 | Intake air temperature sensor | °C
14 | Throttle position sensor | mV
16 | Power supply voltage | V
17 | Mixture adjusting screw (variable resistor) | mV
18 | Cranking signal (ignition switch-ST) | ON/OFF
21 | Engine coolant temperature sensor | °C
22 | Crank angle sensor | r/min
25 | Barometric pressure sensor | kPa
27 | Power steering fluid pressure switch | ON/OFF
28 | A/C switch | ON/OFF
29 | Inhibitor switch | P/R/N/D/3/2/L
37 | Volumetric efficiency | %
3A | A/C pressure sensor | mV
41 | Injectors | ms
44 | Ignition advance | ° BTDC
45 | Idle speed control (stepper motor) position | STEP
49 | A/C relay | ON/OFF
ACTUATOR TEST FUNCTION The actuator test items are given in the table below
Item No. | Inspection item | Drive contents
--- | --- | ---
01 | Injectors | Cut fuel to No.1 injector
02 | Cut fuel to No.2 injector
03 | Cut fuel to No.3 injector
04 | Cut fuel to No.4 injector
07 | Fuel pump | Fuel pump operates and fuel is recirculated
10 | Exhaust gas recirculation (EGR) control solenoid valve | Solenoid valve turns from OFF to ON
17 | Basic ignition timing | Set to ignition adjustment mode
21 | Fan controller | Drive the fan motor

[13B] MULTIPOINT FUEL INJECTION (MPI) <4G64> - - DIAGNOSIS SYSTEM | PRINT PAGE / INDEX / PRIOR / NEXT

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