[13C] MULTIPOINT FUEL INJECTION (MPI) <4G69> - - DIAGNOSIS SYSTEM | PRINT PAGE / INDEX / PRIOR / NEXT

DIAGNOSIS SYSTEM Engine-A/T-ECU has been provided with the following functions for easier system inspection.
FREEZE-FRAME DATA When the engine-A/T-ECU detects a problem and stores the resulting diagnosis code, the engine condition at that time is also memorized. The MUT-II/ III can then be used to analyze this data in order to increase the effectiveness of troubleshooting. The freeze-frame data display items are given below.
Item No. | Data | Unit
--- | --- | ---
21 | Engine coolant temperature | °C
22 | Engine speed | r/min
24 | Vehicle speed | km/h
80 | Long-term fuel compensation (long-term fuel trim) | %
82 | Short-term fuel compensation (short-term fuel trim) | %
88 | Fuel control condition | Open loop
Closed loop
Open loop owing to drive condition
Open loop owing to system malfunction
Closed loop based on one oxygen sensor
97 | Calculated lode value | %
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
--- | --- | --- | ---
P0100 | Air flow sensor system | Open circuit or short-circuit in sensor-related circuits | ON
P0105 | Manifold absolute pressure sensor system <Vehicles for Hong kong> | Open circuit or short-circuit in sensor-related circuits | ON
P0105 | Barometric pressure sensor system <Vehicles except for Hong kong> | Abnormality engine-A/T-ECU | ON
P0110 | Intake air temperature sensor system | Open circuit in sensor-related circuits | ON
P0115 | Engine coolant temperature sensor system | Short-circuit in sensor-related circuits | ON
P0122* | Throttle position sensor (main) circuit low input | Open circuit or short-circuit in sensor-related circuits | ON
P0123* | Throttle position sensor (main) circuit high input | Open circuit in sensor-related circuits | ON
P0125* | Insufficient coolant temperature for closed loop fuel control <Vehicles for Hong kong> | Oxygen sensor not operating | ON
P0130 | Cylinder 1, 4 oxygen sensor (front) circuit <Vehicles for Hong kong> | Abnormal sensor output | ON
P0135 | Cylinder 1, 4 oxygen sensor (front) heater circuit <Vehicles for Hong kong> | Open circuit or short-circuit in heater-related circuits | ON
P0136 | Cylinder 1, 4 oxygen sensor (rear) circuit <Vehicles for Hong kong> | Abnormal sensor output | ON
P0141 | Cylinder 1, 4 oxygen sensor (rear) heater circuit <Vehicles for Hong kong> | Open circuit or short-circuit in sensor-related circuits | ON
P0150 | Cylinder 2, 3 oxygen sensor (front) circuit <Vehicles for Hong kong> | Abnormal sensor output | ON
P0155 | Cylinder 2, 3 oxygen sensor (front) heater circuit <Vehicles for Hong kong> | Open circuit or short-circuit in heater-related circuits | ON
P0156 | Cylinder 2, 3 oxygen sensor (rear) circuit <Vehicles for Hong kong> | Abnormal sensor output | ON
P0161 | Cylinder 2, 3 oxygen sensor (rear) heater circuit <Vehicles for Hong kong> | Open circuit or short-circuit in heater-related circuits | ON
P0170 | Abnormal fuel system (cylinder 1, 4) <Vehicles for Hong kong> | Abnormal sensor output | ON
P0173 | Abnormal fuel system (cylinder 2, 3) <Vehicles for Hong kong> | Abnormal sensor output | ON
P0201 | No. 1 injector circuit | Open circuit or short-circuit in injector-related circuits | ON
P0202 | No. 2 injector circuit | Open circuit or short-circuit in injector-related circuits | ON
P0203 | No. 3 injector circuit | Open circuit or short-circuit in injector-related circuits | ON
P0204 | No. 4 injector circuit | Open circuit or short-circuit in injector-related circuits | ON
P0222* | Throttle position sensor (sub) circuit low input | Open circuit or short-circuit in sensor-related circuits | ON
P0223* | Throttle position sensor (sub) circuit high input | Open circuit in sensor-related circuits | ON
P0300 | Ignition coil (power transistor) system | Abnormal ignition signal (Mis-firing) | ON
P0300 | Random / multiple cylinder mis-fire detected <Vehicles for Hong kong> | Abnormal ignition signal (Mis-firing) | ON
P0301 | No. 1 cylinder mis-fire detected <Vehicles for Hong kong> | Mis-firing | ON
P0302 | No. 2 cylinder mis-fire detected <Vehicles for Hong kong>
P0303 | No. 3 cylinder mis-fire detected <Vehicles for Hong kong>
P0304 | No. 4 cylinder mis-fire detected <Vehicles for Hong kong>
P0325 | Detonation sensor circuit | Abnormal sensor output | ON
P0335* | Crank angle sensor circuit | Abnormal sensor output | ON
P0340* | Camshaft position sensor circuit | Abnormal sensor output | ON
P0403 | Exhaust gas recirculation (EGR) control circuit <Vehicles for Hong kong> | Open circuit or short-circuit in solenoid valve-related circuits | ON
P0421 | Warm up catalyst malfunction (cylinder 1, 4) <Vehicles for Hong kong> | Abnormal exhaust gas purification performance of catalyst | ON
P0431 | Warm up catalyst malfunction (cylinder 2, 3) <Vehicles for Hong kong> | Abnormal exhaust gas purification performance of catalyst | ON
P0443 | Evaporative emission system purge control valve circuit <Vehicles for Hong kong> | Open circuit or short-circuit in solenoid valve-related circuits | ON
P0500 | Vehicles speed signal system | Abnormal sensor output | ON
P0505 | Idle speed control (ISC) system <Vehicles for Hong kong> | Intake system vacuum leak | ON
P0513 | Immobilizer malfunction <Vehicles for GCC, Australia and South africa> | Open circuit or short-circuit in system-related circuits | ON
P0551* | Power steering fluid pressure switch circuit intermittent <Vehicles for Hong kong> | Open circuit or short-circuit in system-related circuits | ON
P0554 | Power steering fluid pressure switch circuit range/performance <Vehicles for Hong kong> | Abnormal power steering switch | ON
P0603 | EEPROM | Abnormality in engine-A/T-ECU | ON
P0606* | Powertrain control module main processor malfunction <Vehicles except for Hong kong> | Abnormality in engine-A/T-ECU | ON
P0622 | Alternator FR terminal circuit malfunction | Open circuit or short-circuit in system-related circuits | ON
P0638* | Throttle valve control servo circuit range/performance problem | Abnormal throttle valve control servo | ON
P0642* | Throttle position sensor power supply | Abnormality in engine-A/T-ECU | ON
P0657* | Throttle valve control servo relay circuit malfunction | Open circuit or short-circuit in sensor-related circuits | ON
P1021 | Oil control valve circuit | Open circuit or short-circuit in solenoid valve-related circuits | ON
P1602* | Communication Malfunction (between engine-A/T-ECU and Throttle Actuator Control Module) | Abnormality in engine-ECU | ON
P1603* | Battery back-up circuit malfunction <Vehicles for Hong kong> | Open circuit or short-circuit in system-related circuits | ON
P2100* | Throttle valve control servo circuit (open) | Open circuit in system-related circuits | ON
P2101* | Throttle valve control servo magneto malfunction | Short-circuit in system-related circuits | ON
P2102* | Throttle valve control servo circuit (shorted low) | Short-circuit in system-related circuits | ON
P2103* | Throttle valve control servo circuit (shorted high) | Short-circuit in system-related circuits | ON
P2121* | Accelerator pedal position sensor (main) circuit range/performance problem <Vehicles except for Australia and South africa> | Abnormal sensor output | ON
P2122* | Accelerator pedal position sensor (main) circuit low input | Open circuit or short-circuit in sensor-related circuits | ON
P2123* | Accelerator pedal position sensor (main) circuit high input | Open circuit in sensor-related circuits | ON
P2126 | Accelerator pedal position sensor (main) circuit range/performance problem <Vehicles except for Australia and South africa> | Abnormal sensor output | ON
P2127* | Accelerator pedal position sensor (sub) circuit low input | Open circuit or short-circuit in sensor-related circuits | ON
P2128* | Accelerator pedal position sensor (sub) circuit high input | Open circuit in sensor-related circuits | ON
P2135* | Throttle position sensor (main and sub) circuit range/performance problem | Abnormal sensor output | ON
P2138* | Accelerator pedal position sensor (main and sub) circuit range/performance problem | Abnormal sensor output | ON
P2173* | Abnormal intake air amount | Abnormal sensor output | ON
NOTE: When the first time a malfunction is detected, the engine-A/T-ECU does not store a fault code. However, if the same malfunction is again detected the next time the engine is operated, a fault code is stored. For systems or components marked with "*" to be diagnosed, when the first time a malfunction is detected, a fault code is stored and the engine warning lamp is illuminated.
DATA LIST FUNCTION The data list items are given in the table below
Item No. | Inspection item | Unit
--- | --- | ---
11 | Cylinder 1, 4 oxygen sensor (front) <Vehicles for Hong kong> | mV
12 | Air flow sensor | g/s
13 | Intake air temperature sensor | °C
14 | Throttle position sensor (sub) | mV
16 | Power supply voltage | V
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
26 | Idle position switch | ON/OFF
27 | Power steering fluid pressure switch | ON/OFF
28 | A/C switch | ON/OFF
28 | A/C switch | ON/OFF
37 | Volumetric efficiency | %
39 | Cylinder 2, 3 oxygen sensor (front) <Vehicles for Hong kong> | mV
41 | Injectors | ms
44 | Ignition advance | °BTDC
49 | A/C relay | ON/OFF
59 | Cylinder 1, 4 oxygen sensor (rear) <Vehicles for Hong kong> | mV
68 | EGR valve | STEP
69 | Cylinder 2, 3 oxygen sensor (rear) <Vehicles for Hong kong> | mV
77 | Accelerator pedal position sensor (sub) | mV
78 | Accelerator pedal position sensor (main) | mV
79 | Throttle position sensor (main) | mV
95 | Manifold absolute pressure sensor | kPa
9A | Throttle position sensor (main) mid opening learning valve | mV
12* | Air flow sensor <Vehicles for Hong kong> | gm/s
13* | Intake air temperature sensor <Vehicles for Hong kong> | °C
21* | Engine coolant temperature sensor <Vehicles for Hong kong> | °C
22* | Crank angle sensor <Vehicles for Hong kong> | r/min
24* | Vehicle speed sensor <Vehicles for Hong kong> | km/h
44* | Ignition advance <Vehicles for Hong kong> | deg
81* | Long-term fuel compensation on (No.1, No.4 cylinder) <Vehicles for Hong kong> | %
82* | Short-term fuel compensation on (No.1, No.4 cylinder) <Vehicles for Hong kong> | %
83* | Long-term fuel compensation on (No.2, No.3 cylinder) <Vehicles for Hong kong> | %
84* | Short-term fuel compensation on (No.2, No.3 cylinder) <Vehicles for Hong kong> | %
87* | Calculated load valve <Vehicles for Hong kong> | %
88* | Fuel control condition on (No.1, No.4 cylinder) <Vehicles for Hong kong> | Closed loop/Open loop - drive condition
89* | Fuel control condition on (No.2, No.3 cylinder) <Vehicles for Hong kong> | Closed loop/Open loop - drive condition
8A* | Throttle position sensor (main) <Vehicles for Hong kong> | %
95* | Manifold absolute pressure sensor <Vehicles for Hong kong> | kPa
A1* | Cylinder 1, 4 oxygen sensor (front) <Vehicles for Hong kong> | V
A2* | Cylinder 1, 4 oxygen sensor (rear) <Vehicles for Hong kong> | V
A3* | Cylinder 2, 3 oxygen sensor (front) <Vehicles for Hong kong> | V
A4* | Cylinder 2, 3 oxygen sensor (rear) <Vehicles for Hong kong> | V
NOTE: Items marked "*" will not appear if a data list is selected in the check mode.
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
08 | Purge 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
22 | Oil control valve | Oil control valve turns from OFF the ON
34 | Electronic-controlled throttle valve system | Stop the throttle valve control servo

[13C] MULTIPOINT FUEL INJECTION (MPI) <4G69> - - DIAGNOSIS SYSTEM | PRINT PAGE / INDEX / PRIOR / NEXT

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