DTC P2147, P2148 FUEL INJECTOR CIRCUIT
EC-1297
[YD (WITH EURO-OBD)]
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DTC P2147, P2148 FUEL INJECTOR CIRCUITPFP:16600
Component DescriptionEBS011F3
The fuel injector is a small, precise solenoid valve. When the ECM
supplies a ground to the fuel injector circuit, the coil in the fuel injec-
tor is energized. The energized coil pulls the needle valve back and
allows fuel to flow through the fuel injector into the intake cylinder.
The amount of fuel injected depends upon the injection pulse dura-
tion. Pulse duration is the length of time the fuel injector remains
open. The ECM controls the injection pulse duration based on
engine fuel needs.
CONSULT-II Reference Value in Data Monitor ModeEBS011F4
Specification data are reference values.
On Board Diagnosis LogicEBS011F6
DTC Confirmation ProcedureEBS011F7
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let it idle for at least 5 seconds.
4. If 1st trip DTC is detected, go to EC-1300, "
Diagnostic Proce-
dure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
PBIB0465E
MONITOR ITEM CONDITION SPECIFICATION
MAIN INJ WID
Engine: After warming up
Shift lever: Neutral position
Idle speedNo-load 0.68 - 0.78 msec
Blower fan switch: ON
Rear window defogger switch: ON0.78 - 0.88 msec
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2147
2147Fuel injector circuit low
inputECM detects the fuel injector circuit is shorted to
ground.
Harness or connectors
(The fuel injector circuit is shorted.)
P2148
2148Fuel injector circuit high
inputECM detects the fuel injector circuit is shorted to
power.
SEF817Y
EC-1412
[YD (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS
NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
*: These signals are converted by ECM internally. Thus, these differ from ECM terminals voltage.P/N POSI SW
Ignition switch: ONShift lever: Neutral position ON
Except above OFF
START SIGNAL
Ignition switch: ON → START → ON OFF → ON → OFF
PW/ST SIGNAL
Engine: After warming up, idle
the engineSteering wheel is in neutral posi-
tion. (Forward direction)OFF
Steering wheel is turned. ON
BRAKE SW
Ignition switch: ONBrake pedal: Fully released OFF
Brake pedal: Slightly depressed ON
IGN SW
Ignition switch: ON → OFF ON → OFF
ACT CR PRESS
Engine: After warming up
Air conditioner switch: OFF
Shift lever: Neutral position
No-loadIdle 20 - 30 MPa
2,000 rpm 45 - 55 MPa
MAIN INJ WID
Engine: After warming up
Shift lever: Neutral position
Idle speedNo-load 0.68 - 0.78 msec
Blower fan switch: ON
Rear window defogger switch: ON0.78 - 0.88 msec
GLOW RLY Refer to EC-1643, "
GLOW CONTROL SYSTEM" .
PUMP CURRENT
Engine: After warming up
Air conditioner switch: OFF
Shift lever: Neutral position
No-loadIdle 1,700 - 1,900 mA
2,000 rpm 1,600 - 1,800 mA
COOLING FAN
When cooling fan is stopped. OFF
When cooling fans operate at low speed. LOW
When cooling fans operate at high speed. HI
EGR VOL CON/V
Engine: After warming up
Air conditioner switch: OFF
Shift lever: Neutral position
No-loadAfter 1 minute at idle More than 10 steps
Revving engine from idle to 3,600
rpm0 step
INT/A VOLUME
Engine: After warming up, idle the engine 150 - 450 mg/st
INT/M PRES SE [kPa]
Engine: After warming up
Air conditioner switch: OFF
Shift lever: Neutral position
No-loadIdle Approx. 100 kPa
2,800 rpm Approx. 126 kPa
4,000 rpm Approx. 106 kPa
BARO SEN
Ignition switch: ONAltitude
Approx. 0m: Approx. 100.62 kPa
(1.0062 bar, 1.026 kg/cm
2 , 14.59
psi)
Approx. 1,000 m: Approx. 88.95
kPa (0.8895 bar, 0.907 kg/cm
2 ,
12.90 psi)
Approx. 1,500 m: Approx. 83.16
kPa (0.8316 bar, 0.848 kg/cm
2 ,
12.06 psi)
Approx. 2,000 m: Approx. 78.36
kPa (0.7836 bar, 0.799 kg/cm
2 ,
11.36 psi)
CYL COUNT
Engine is running 1 → 3 → 4 → 2 MONITOR ITEM CONDITION SPECIFICATION
EC-1474
[YD (WITHOUT EURO-OBD)]
DTC P0201 - P0204 FUEL INJECTOR
DTC P0201 - P0204 FUEL INJECTORPFP:16600
Component DescriptionEBS011ZW
The fuel injector is a small, precise solenoid valve. When the ECM
supplies a ground to the fuel injector circuit, the coil in the fuel injec-
tor is energized. The energized coil pulls the needle valve back and
allows fuel to flow through the fuel injector into the cylinder. The
amount of fuel injected depends upon the injection pulse duration.
Pulse duration is the length of time the fuel injector remains open.
The ECM controls the injection pulse duration based on engine fuel
needs.
CONSULT-II Reference Value in Data Monitor ModeEBS011ZX
Specification data are reference values.
On Board Diagnosis LogicEBS011ZZ
The MI will not light up for these self-diagnoses.
PBIB0465E
MONITOR ITEM CONDITION SPECIFICATION
MAIN INJ WID
Engine: After warming up
Shift lever: Neutral position
Idle speedNo-load 0.68 - 0.78 msec
Blower fan switch: ON
Rear window defogger switch: ON0.78 - 0.88 msec
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0201
0201No. 1 cylinder fuel injector
circuit openAn improper voltage signal is sent to ECM
through No. 1 cylinder fuel injector.
Harness or connectors
(The fuel injector circuit is open.)
Fuel injector P0202
0202No. 2 cylinder fuel injector
circuit openAn improper voltage signal is sent to ECM
through No. 2 cylinder fuel injector.
P0203
0203No. 3 cylinder fuel injector
circuit openAn improper voltage signal is sent to ECM
through No. 3 cylinder fuel injector.
P0204
0204No. 4 cylinder fuel injector
circuit openAn improper voltage signal is sent to ECM
through No. 4 cylinder fuel injector.
EC-1596
[YD (WITHOUT EURO-OBD)]
DTC P1268 - P1271 FUEL INJECTOR
DTC P1268 - P1271 FUEL INJECTORPFP:16600
Component DescriptionEBS0126X
The fuel injector is a small, precise solenoid valve. When the ECM
supplies a ground to the fuel injector circuit, the coil in the fuel injec-
tor is energized. The energized coil pulls the needle valve back and
allows fuel to flow through the fuel injector into the intake cylinder.
The amount of fuel injected depends upon the injection pulse dura-
tion. Pulse duration is the length of time the fuel injector remains
open. The ECM controls the injection pulse duration based on
engine fuel needs.
CONSULT-II Reference Value in Data Monitor ModeEBS0126Y
Specification data are reference values.
On Board Diagnosis LogicEBS01270
The MI will not light up for these self-diagnoses.
PBIB0465E
MONITOR ITEM CONDITION SPECIFICATION
MAIN INJ WID
Engine: After warming up
Shift lever: Neutral position
Idle speedNo-load 0.68 - 0.78 msec
Blower fan switch: ON
Rear window defogger switch: ON0.78 - 0.88 msec
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1268
1268No. 1 cylinder fuel injectorThe valve built into No. 1 cylinder fuel injector is
not closed properly (stuck open) when the injec-
tor is not energized.
Fuel injector P1269
1269No. 2 cylinder fuel injectorThe valve built into No. 2 cylinder fuel injector is
not closed properly (stuck open) when the injec-
tor is not energized.
P1270
1270No. 3 cylinder fuel injectorThe valve built into No. 3 cylinder fuel injector is
not closed properly (stuck open) when the injec-
tor is not energized.
P1271
1271No. 4 cylinder fuel injectorThe valve built into No. 4 cylinder fuel injector is
not closed properly (stuck open) when the injec-
tor is not energized.
DTC P2146, P2149 FUEL INJECTOR POWER SUPPLY
EC-1631
[YD (WITHOUT EURO-OBD)]
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DTC P2146, P2149 FUEL INJECTOR POWER SUPPLYPFP:16600
Component DescriptionEBS0124X
The fuel injector is a small, precise solenoid valve. When the ECM
supplies a ground to the fuel injector circuit, the coil in the fuel injec-
tor is energized. The energized coil pulls the needle valve back and
allows fuel to flow through the fuel injector into the cylinder. The
amount of fuel injected depends upon the injection pulse duration.
Pulse duration is the length of time the fuel injector remains open.
The ECM controls the injection pulse duration based on engine fuel
needs.
CONSULT-II Reference Value in Data Monitor ModeEBS0124Y
Specification data are reference values.
On Board Diagnosis LogicEBS01250
DTC Confirmation ProcedureEBS01251
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION
Before performing the following procedure, confirm the ambient temperature is more than -20°C (-4°F).
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let it idle for at least 5 seconds.
4. If DTC is detected, go to EC-1634, "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Start engine and let it idle for at least 5 seconds.
2. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
3. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM.
4. If DTC is detected, go to EC-1634, "
Diagnostic Procedure" .
PBIB0465E
MONITOR ITEM CONDITION SPECIFICATION
MAIN INJ WID
Engine: After warming up
Shift lever: Neutral position
Idle speedNo-load 0.68 - 0.78 msec
Blower fan switch: ON
Rear window defogger switch: ON0.78 - 0.88 msec
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2146
2146No. 1 and 4 cylinder fuel
injector power supply cir-
cuit openAn improper voltage signal is sent to ECM
through No. 1 and 4 cylinder fuel injector.
Harness or connectors
(The fuel injector circuit is open.)
P2149
2149No. 2 and 3 cylinder fuel
injector power supply cir-
cuit openAn improper voltage signal is sent to ECM
through No. 2 and 3 cylinder fuel injector.
SEF817Y
DTC P2147, P2148 FUEL INJECTOR CIRCUIT
EC-1635
[YD (WITHOUT EURO-OBD)]
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DTC P2147, P2148 FUEL INJECTOR CIRCUITPFP:16600
Component DescriptionEBS01254
The fuel injector is a small, precise solenoid valve. When the ECM
supplies a ground to the fuel injector circuit, the coil in the fuel injec-
tor is energized. The energized coil pulls the needle valve back and
allows fuel to flow through the fuel injector into the intake cylinder.
The amount of fuel injected depends upon the injection pulse dura-
tion. Pulse duration is the length of time the fuel injector remains
open. The ECM controls the injection pulse duration based on
engine fuel needs.
CONSULT-II Reference Value in Data Monitor ModeEBS01255
Specification data are reference values.
On Board Diagnosis LogicEBS01257
DTC Confirmation ProcedureEBS01258
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let it idle for at least 5 seconds.
4. If DTC is detected, go to EC-1638, "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Start engine and let it idle for at least 5 seconds.
2. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
3. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM.
4. If DTC is detected, go to EC-1638, "
Diagnostic Procedure" .
PBIB0465E
MONITOR ITEM CONDITION SPECIFICATION
MAIN INJ WID
Engine: After warming up
Shift lever: Neutral position
Idle speedNo-load 0.68 - 0.78 msec
Blower fan switch: ON
Rear window defogger switch: ON0.78 - 0.88 msec
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2147
2147Fuel injector circuit low
inputECM detects the fuel injector circuit is shorted to
ground.
Harness or connectors
(The fuel injector circuit is shorted.)
P2148
2148Fuel injector circuit high
inputECM detects the fuel injector circuit is shorted to
power.
SEF817Y
ATC-1
AUTOMATIC AIR CONDITIONER
J AIR CONDITIONER
CONTENTS
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SECTION AT C
A
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AT C
AUTOMATIC AIR CONDITIONER
PRECAUTIONS .......................................................... 4
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 4
Precautions for Working with HFC-134a (R-134a) ..... 4
General Refrigerant Precautions .............................. 5
Lubricant Precautions .............................................. 5
Precautions for Refrigerant Connection ................... 5
FEATURES OF NEW TYPE REFRIGERANT
CONNECTION ...................................................... 6
O-RING AND REFRIGERANT CONNECTION ..... 7
Precautions for Servicing Compressor ................... 10
Precautions for Service Equipment ........................ 10
RECOVERY/RECYCLING EQUIPMENT ............ 10
ELECTRONIC LEAK DETECTOR ...................... 10
VACUUM PUMP ................................................. 10
MANIFOLD GAUGE SET .................................... 10
SERVICE HOSES ................................................ 11
SERVICE COUPLERS ......................................... 11
REFRIGERANT WEIGHT SCALE ....................... 11
CALIBRATING ACR4 WEIGHT SCALE ............... 11
CHARGING CYLINDER ...................................... 12
Precautions for Leak Detection Dye ....................... 12
IDENTIFICATION ................................................ 13
IDENTIFICATION LABEL FOR VEHICLE ........... 13
Wiring Diagrams and Trouble Diagnosis ................ 13
PREPARATION ......................................................... 14
Special Service Tools ............................................. 14
WITH GASOLINE ENGINE (CWV-615M COM-
PRESSOR) ......................................................... 14
WITH DIESEL ENGINE (DKV-11G COMPRES-
SOR) ................................................................... 14
HFC-134a (R-134a) Service Tools and Equipment ... 15
REFRIGERATION SYSTEM ..................................... 18
Refrigerant Cycle ................................................... 18
REFRIGERANT FLOW ....................................... 18
FREEZE PROTECTION (WITH GASOLINE
ENGINE: CWV-615M COMPRESSOR) .............. 18
Refrigerant System Protection ............................... 18
REFRIGERANT PRESSURE SENSOR (WITH GASOLINE ENGINE: CWV-615M COMPRES-
SOR) ................................................................... 18
DUAL-PRESSURE SWITCH (WITH DIESEL
ENGINE: DKV-11G COMPRESSOR) .................. 18
PRESSURE RELIEF VALVE (WITH GASOLINE
ENGINE: CWV-615M COMPRESSOR) .............. 18
V-6 Variable Displacement Compressor (With Gas-
oline Engine: CWV-615M Compressor) .................. 19
GENERAL INFORMATION ................................. 19
DESCRIPTION .................................................... 20
Component Layout ................................................. 23
LUBRICANT .............................................................. 24
Maintenance of Lubricant Quantity in Compressor ... 24
LUBRICANT ........................................................ 24
LUBRICANT RETURN OPERATION .................. 24
LUBRICANT ADJUSTING PROCEDURE FOR
COMPONENTS REPLACEMENT EXCEPT
COMPRESSOR .................................................. 25
LUBRICANT ADJUSTING PROCEDURE FOR
COMPRESSOR REPLACEMENT ....................... 25
AIR CONDITIONER CONTROL ............................... 27
Description of Air Conditioner LAN Control System ... 27
System Construction .............................................. 27
OPERATION ........................................................ 27
TRANSMISSION DATA AND TRANSMISSION
ORDER ............................................................... 28
AIR MIX DOOR CONTROL (AUTOMATIC TEM-
PERATURE CONTROL) ..................................... 29
FAN SPEED CONTROL ...................................... 29
INTAKE DOOR CONTROL ................................. 29
OUTLET DOOR CONTROL ................................ 29
MAGNET CLUTCH CONTROL ........................... 29
SELF-DIAGNOSTIC SYSTEM ............................ 29
Description of Control System ................................ 30
Control Operation ................................................... 31
MODE CONTROL DIAL ...................................... 31
TEMPERATURE CONTROL DIAL (POTENTIO
TEMPERATURE CONTROL) .............................. 31
FAN CONTROL DIAL .......................................... 31
REAR WINDOW DEFOGGER SWITCH ............. 31
AIR CONDITIONER CONTROL
ATC-31
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AT C
Control OperationEJS004G9
MODE CONTROL DIAL
Controls the air discharge outlets.
Positions the air outlet doors to the defrost position. Also positions the intake doors to the outside air position.
When shifting mode control dial to DEF under the following conditions, compressor is turned ON. (A/C LED
ON)
FAN: O N
A/C: OFF
TEMPERATURE CONTROL DIAL (POTENTIO TEMPERATURE CONTROL)
Increase or decrease the set temperature.
FAN CONTROL DIAL
Automatically or Manually control the blower speed. Twenty-five speeds are available for manual control.
Shifting fan control dial to AUTO, compressor is turned ON automatically.
REAR WINDOW DEFOGGER SWITCH
When illumination is ON, rear window is defogged.
INTAKE SWITCH
When intake switch is ON, REC indicator turns ON, and air inlet is fixed to REC.
When press intake switch again, FRE indicator turns ON, and air inlet is fixed to FRE.
When intake switch is pressed for approximately 1.5 seconds or longer, REC and FRE indicators blink
twice. Then, automatic control mode is entered. Inlet status is displayed even during automatic control.
When DEF position or FRE indicator is turned ON, or when compressor is turned from ON to OFF, REC
switch is automatically turned OFF (fixed to FRE mode).
REC mode can be re-entered by pressing intake switch again. (Except DEF position)
A/C SWITCH
The compressor is ON or OFF.
(Pressing the A/C switch when the fan control dial is ON will turn off the A/C switch and compressor.)
SJIA0386E