ES–354
2GR-FE ENGINE CONTROL SYSTEM
– SFI SYSTEM
ES
HINT:
•
DTCs P2195 and P2196 indicate malfunctions related to the bank 1 A/F sensor circuit.
•
DTCs P2197 and P2198 indicate malfunctions related to the bank 2 A/F sensor circuit.
•
Bank 1 refers to the bank that includes cylinder No. 1.
•
Bank 2 refers to the bank that includes cylinder No. 2.
•
When any of these DTCs are set, check the A/F sensor output voltage by entering the following menus
on the intelligent tester: DIAGNOSIS / ENHANCED OBD II / DATA LIST / PRIMARY / AFS B1S1.
•
Short-term fuel trim values can also be read using an intelligent tester.
•
The ECM regulates the voltages at the A1A+, A2A+, A1A- and A2A- terminals of the ECM to a
constant level. Therefore, the A/F sensor output voltage cannot be confirmed without using the
intelligent tester.
DTC No.
DTC Detection Condition
Trouble Area
P2195
P2197
Conditions (a) and (b) continue for 2 seconds or more
(2 trip detection logic):
(a) Air-Fuel Ratio (A/F) sensor voltage is more than 3.8
V
(b) Heated Oxygen (HO2) sensor voltage is 0.15 V or
more
•
Open or short in A/F sensor (bank 1, 2 sensor 1)
circuit
•
A/F sensor (bank 1, 2 sensor 1)
•
A/F sensor (bank 1, 2 sensor 1) heater
•
A/F sensor heater relay
•
A/F sensor heater and relay circuits
•
Air induction system
•
Injector
•
ECM
P2195
P2197
While fuel-cut operation is performed (during vehicle
deceleration), air-fuel ratio (A/F) sensor current is 3.6
mA or more for 3 seconds (2 trip detection logic)
•
A/F sensor
•
ECM
P2196
P2198
Conditions (a) and (b) continue for 2 seconds or more
(2 trip detection logic):
(a) A/F sensor voltage is less than 2.8 V
(b) HO2 sensor voltage is less than 0.85 V
•
Open or short in A/F sensor (bank 1, 2 sensor 1)
circuit
•
A/F sensor (bank 1, 2 sensor 1)
•
A/F sensor (bank 1, 2 sensor 1) heater
•
A/F sensor heater relay
•
A/F sensor heater and relay circuits
•
Air induction system
•
Injector
•
ECM
P2196
P2198
While fuel-cut operation is performed (during vehicle
deceleration), air-fuel ratio (A/F) sensor current is 1.4
mA for 3 seconds (2 trip detection logic)
•
A/F sensor
•
ECM
A
A
Element
Exhaust Gas
A-A Section
Platinum electrode
Cover
Air
Heater
Solid electrolyte
(Zirconia Element)
Rich - Air Fuel Ratio - Lean
Ideal Air-Fuel Mixture
Output Voltage
A107164E14
Содержание 2GR-FE
Страница 176: ...ES 20 2GR FE ENGINE CONTROL SYSTEM SFI SYSTEM ES NEXT 20 CONDUCT CONFIRMATION TEST END ...
Страница 247: ...2GR FE ENGINE CONTROL SYSTEM SFI SYSTEM ES 91 ES OK REPLACE ECM See page ES 518 ...
Страница 412: ...ES 256 2GR FE ENGINE CONTROL SYSTEM SFI SYSTEM ES A END ...
Страница 447: ...2GR FE ENGINE CONTROL SYSTEM SFI SYSTEM ES 291 ES OK REPLACE ECM See page ES 518 ...
Страница 556: ...ES 400 2GR FE ENGINE CONTROL SYSTEM SFI SYSTEM ES A REPLACE TCM ...
Страница 630: ...ES 474 2GR FE ENGINE CONTROL SYSTEM SFI SYSTEM ES OK REPLACE ECM See page ES 518 ...
Страница 651: ...2GR FE ENGINE CONTROL SYSTEM CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY ES 487 ES 22 INSTALL ENGINE UNDER COVER LH ...
Страница 658: ...2GR FE ENGINE CONTROL SYSTEM VVT SENSOR ES 493 ES 22 INSTALL ENGINE UNDER COVER LH ...
Страница 719: ...FU 6 2GR FE FUEL FUEL SYSTEM FU PARTS LOCATION ENGINE ROOM RELAY BLOCK ECM FUEL INJECTOR FUEL PUMP A136014E01 ...
Страница 897: ...2GR FE STARTING SMART KEY SYSTEM ST 35 ST OK REPLACE MAIN BODY ECU ...
Страница 923: ...2GR FE STARTING SMART KEY SYSTEM ST 61 ST OK REPLACE MAIN BODY ECU ...
Страница 935: ...2GR FE STARTING SMART KEY SYSTEM ST 73 ST OK REPLACE MAIN BODY ECU ...
Страница 940: ...ST 78 2GR FE STARTING SMART KEY SYSTEM ST OK REPLACE MAIN BODY ECU ...
Страница 958: ...ST 96 2GR FE STARTING SMART KEY SYSTEM ST OK END MAIN BODY ECU DEFECTIVE ...