(e)
Road test the vehicle for at least 10 min.
(f)
Read control system DTC code again to confirm that the
system has no DTC code.
No
Intermittent Fault. Refer to
Yes
Step 16
Diagnostic completed.
5. Repair Instructions:
Replace the Post-Catalytic oxygen sensor. Refer to
Post-Catalytic Oxygen Sensor Replacement
2.12.7.25 DTC P0141
1. DTC Descriptor:
DTC
P0141
Post-Catalytic oxygen sensor heater malfunction
Heated Post-Catalytic Oxygen Sensor (HO
2
S) is used to monitor the three-way catalytic converter working status. The sensor
compares the oxygen content in ambient air and oxygen content in the exhaust flow. Each heated oxygen sensor has an internal
heating element. ECM controls the heated oxygen sensor heating control circuit. This makes the system enter the closed-loop system
earlier, so that ECM will calculate Air-Fuel ratio earlier. ECM controls the heating control circuit switched on or off, so that heated
oxygen sensor working temperature maintains in the specified range. ECM measures the heater current to determine the
temperature.
The Post-Catalytic oxygen sensor heating coil voltage is provided by The Main Relay controlled by ECM. When the ignition switch
is turned to "ON", Post-Catalytic oxygen sensor connector EO03 terminal D will have battery voltage. ECM controls the heater
working hours by ECM harness connector EO01 terminal No.46.
2. Conditions For Setting DTC and The Fault Location:
DTC Code
DTC Detection
Strategy
Conditions For Setting The DTC (Control Strategy)
Fault Locations
P0141
Hardware Circuit
Checks
1. Engine Running Longer Than 60 s.
2. Idle Running Condition.
3. Post-Catalytic Oxygen Sensor Heating.
4. Post-Catalytic Oxygen Sensor Heating Control Terminal
Circuit Open.
5. Duration Less Than 20 s.
1. Sensor Circuit
2. Sensor
3. ECM
3. Schematic:
.
4. Diagnostic Steps:
Note
Before carrying out this diagnosis step, observe the data list on scan tool and analyze the accuracy of the data, as
these will help with quick diagnosis.
2-686
Control System JL4G15-D
Engine
EC718/EC718RV EC715/EC715RV 10/2009
Содержание EC715 2009
Страница 4: ......
Страница 312: ...2 3 4 5 Fuel Injectors FE02 2022b 2 230 Fuel System JL4G18 D Engine EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 330: ...Next Step 10 End 2 248 Fuel System JL4G18 D Engine EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 516: ...2 7 4 3 Front Muffler Assembly FE02 2032b 2 434 Exhaust System JL4G18 D Engine EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 517: ...2 7 4 4 Rear Muffler Assembly FE02 2033b Engine Exhaust System JL4G18 D 2 435 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 519: ...2 7 4 6 Front Muffler Heat Shield FE02 2034b Engine Exhaust System JL4G18 D 2 437 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1164: ......
Страница 1257: ...Next Step 9 System normal Brake System ABS TCS EBD ESP 6 93 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1278: ...6 7 8 Special Tools and Equipment 6 7 8 1 Trigger Tool FE06 1007b 6 114 TPMS Brake System EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1412: ...9 2 6 4 Warning lamp Always On Schematic 9 14 Airbag System Safety Protection Device EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1703: ...Rear Wiper Motor Hatchback FE11 2009c Body Electric Wipers Washers System 11 219 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1704: ...Washer Fluid Tank Sedan FE11 2010b 11 220 Wipers Washers System Body Electric EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1705: ...Washer Fluid Tank Hatchback FE11 2010c Body Electric Wipers Washers System 11 221 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1706: ...Rear Washer Nozzle Hatchback FE11 2011c 11 222 Wipers Washers System Body Electric EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1734: ...Next Step 13 System normal 11 250 Wipers Washers System Body Electric EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1860: ...BCM FE11 0803b 11 376 Remote Anti theft System Body Electric EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1951: ...Reverse Radar Control Module FE11 1207b Body Electric Reverse Radar 11 467 EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 1954: ...16 R Control Module Power Supply Gear In Reverse 12 V 11 470 Reverse Radar Body Electric EC718 EC718RV EC715 EC715RV 10 2009 ...
Страница 2008: ......
Страница 2104: ...FE12 0085c 2 Install the hatchback seal 12 96 Interior Trim Body Sheet Metal and Painting EC718 EC718RV EC715 EC715RV 10 2009 ...