Toyota Tundra (2015 year). Manual — part 2016
MONITOR STRATEGY
Related DTCs
P2195: A/F sensor signal stuck lean (Bank 1)
P2196: A/F sensor signal stuck rich (Bank 1)
P2197: A/F sensor signal stuck lean (Bank 2)
P2198: A/F sensor signal stuck rich (Bank 2)
Required Sensors/Components (Main)
A/F sensor
Required Sensors/Components (Related)
HO2 sensor
Duration
5 seconds: Sensor voltage detection monitor
3 seconds: Sensor current detection monitor
MIL Operation
2 driving cycles
TYPICAL ENABLING CONDITIONS
All
Monitor runs whenever following
DTCs not present
P0016, P0018 (VVT system - Misalignment)
P0017, P0019 (Exhaust VVT system - Misalignment)
P0031, P0032, P0051, P0052, P101D, P103D (Air fuel ratio sensor
heater)
P0102, P0103 (Mass air flow meter)
P0112, P0113 (Intake air temperature sensor)
P0115, P0117, P0118 (Engine coolant temperature sensor)
P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2135 (Throttle
position sensor)
P0125 (Insufficient Coolant Temperature for Closed Loop Fuel Control)
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2195-P2198...
P0128 (Thermostat)
P0171, P0172, P0174, P0175 (Fuel system)
P0301 - P0308 (Misfire)
P0335 (Crankshaft position sensor)
P0340, P1340 (Camshaft position sensor)
P0412, P0415, P0418, P0419, P1613, P1614 (Secondary Air Injection
System Control)
P0451, P0452, P0453 (Evaporative Emission System Pressure Sensor)
P0500 (Vehicle speed sensor)
P0505 (IAC valve)
P219A, P219B, P219C, P219D, P219E, P219F, P21A0, P21A1, P21A2,
P21A3 (Air-fuel ratio imbalance)
P2440, P2441, P2442, P2443, P2444, P2445, P2446, P2447 (Secondary
Air Injection System)
Sensor voltage detection monitor:
Time after engine start
30 seconds or more
A/F sensor status
Activated
Fuel system status
Closed-loop
Sensor current detection monitor:
Battery voltage
11 V or more
ECT
75°C (167°F) or more
Atmospheric pressure
76 kPa (570 mmHg) or more
A/F sensor status
Activated
TYPICAL MALFUNCTION THRESHOLDS
Sensor voltage detection monitor (Lean side malfunction P2195 and P2197):
Rear heated oxygen sensor voltage
0.21 V or higher
Air fuel ratio sensor voltage
Higher than 3.8 V
Sensor voltage detection monitor (Rich side malfunction P2196 and P2198):
Rear heated oxygen sensor voltage
Below 0.66 V
Air fuel ratio sensor voltage
Below 2.8 V
Sensor current detection monitor (High side malfunction P2195 and P2197):
Air fuel ratio sensor current
2.2 mA or more
Sensor current detection monitor (Low side malfunction P2196 and P2198):
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2195-P2198...
Air fuel ratio sensor current
Less than 0.7 mA
CONFIRMATION DRIVING PATTERN
This confirmation driving pattern is used in the "PERFORM CONFIRMATION DRIVING PATTERN" procedure of
the following diagnostic troubleshooting procedure.
Connect the Techstream to the DLC3.
1.
Turn the ignition switch to ON.
2.
Turn the Techstream on.
3.
Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
4.
Turn the ignition switch off and wait for at least 30 seconds.
5.
Turn the ignition switch to ON and turn the Techstream on.
6.
Start the engine, and warm it up until the ECT reaches 75°C (167°F) or higher [A].
7.
On Techstream, select the following menu items to check the fuel-cut status: Powertrain / Engine
and ECT / Data List / Idle Fuel Cut.
8.
Drive the vehicle at between 60 km/h (38 mph) and 120 km/h (75 mph) for at least 10 minutes
[B].
9.
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2195-P2198...
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
Shift the transmission to 2nd gear [C].
10.
Accelerate the vehicle to 64 km/h (40 mph) or more by depressing the accelerator pedal for at
least 10 seconds [D].
11.
Soon after performing step [D] above, release the accelerator pedal for at least 4 seconds without
depressing the brake pedal in order to execute fuel-cut control [E].
HINT:
Fuel-cut is performed when the following conditions are met:
Accelerator pedal is fully released.
Engine speed is 2500 rpm or more (fuel injection returns at 1000 rpm).
12.
Allow the vehicle to decelerate until the vehicle speed decreases to less than 10 km/h (6 mph).
13.
Repeat steps [C] through [E] above at least 3 times in one driving cycle.
14.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [F].
15.
Read the Pending DTCs.
HINT:
If a pending DTC is output, the system is malfunctioning.
If a pending DTC is not output, perform the following procedure.
16.
Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
17.
Input the DTC: P2195, P2196, P2197 or P2198.
18.
Check the DTC judgment result.
TESTER
DISPLAY
DESCRIPTION
NORMAL
DTC judgment completed
System normal
ABNORMAL
DTC judgment completed
System abnormal
INCOMPLETE
DTC judgment not completed
Perform driving pattern after confirming DTC enabling conditions
N/A
Unable to perform DTC judgment
HINT:
If the judgment result shows ABNORMAL, the system has a malfunction.
If the judgment result shows INCOMPLETE or N/A, perform steps [B] through [F].
19.
If no pending DTC is output, perform a universal trip and check for permanent DTCs
.
HINT:
If a permanent DTC is output, the system is malfunctioning.
If no permanent DTC is output, the system is normal.
20.
MONITOR RESULT
Refer to CHECKING MONITOR STATUS
.
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2195-P2198...
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