Toyota Tundra (2015 year). Manual — part 1653
Connect the Techstream to the DLC3.
1.
Turn the ignition switch to ON and turn the Techstream on.
2.
Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
3.
Turn the ignition switch off and wait for at least 30 seconds.
4.
Turn the ignition switch to ON and turn the Techstream on.
5.
Enter the following menus: Powertrain / Engine and ECT / Utility / Evaporative System Check /
Automatic Mode.
6.
After the "Evaporative System Check" is completed, check All Readiness by entering the following
menus: Powertrain / Engine and ECT / Utility / All Readiness.
7.
Input the DTC: P2420.
8.
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.
9.
If the test result is INCOMPLETE or N/A and 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.
10.
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2420; Evap...
Last Modified: 9-16-2014
6.6 C
Doc ID: RM0000013HB04RX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: 3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2431-P2433,P2436-P2438; Secondary Air Injection
System Air Flow / Pressure Sensor Circuit Range / Performance Bank1; 2015 MY Tundra [08/2014 - ]
DTC
P2431
Secondary Air Injection System Air Flow / Pressure Sensor Circuit Range /
Performance Bank1
DTC
P2432
Secondary Air Injection System Air Flow / Pressure Sensor Circuit Low
Bank1
DTC
P2433
Secondary Air Injection System Air Flow / Pressure Sensor Circuit High
Bank1
DTC
P2436
Secondary Air Injection System Air Flow / Pressure Sensor Circuit Range /
Performance Bank 2
DTC
P2437
Secondary Air Injection System Air Flow / Pressure Sensor Circuit Low Bank
2
DTC
P2438
Secondary Air Injection System Air Flow / Pressure Sensor Circuit High Bank
2
DESCRIPTION
The AID drives the ASV and the air pump according to command signals transmitted by the ECM. The pressure
sensor detects the pressure in the secondary air passage when the AIR system is ON and OFF, and transmits a
pressure signal to the ECM.
The AID is not only equipped to drive the pump and valve, but also with a diagnosis function to detect
malfunctions in the AIR system circuit.
HINT:
As a large current is required to drive the air pump and ASV, an AID is installed to this system.
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2431-P243...
DTC
NO.
DTC DETECTION CONDITION
TROUBLE AREA
P2431
P2436
Pressure sensor indicates less than 45.63 kPa (342 mmHg),
or more than 135 kPa (1013 mmHg) (2 trip detection logic)
Air switching valve
assembly (Pressure
sensor)
Open or short in pressure
sensor circuit
ECM
P2432
P2437
Air switching valve
assembly (Pressure
sensor)
Open or short in pressure
sensor circuit
ECM
P2433
P2438
Air switching valve
assembly (Pressure
sensor)
Open or short in pressure
sensor circuit
ECM
MONITOR DESCRIPTION
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2431-P243...
The ECM monitors the pressure in the secondary air passage using the pressure sensor located on the air
switching valve in the secondary air injection system.
If there is a defect in the sensor or the sensor circuit, the voltage level deviates from the normal operating
range, the ECM interprets this deviation as a malfunction in the pressure sensor or circuit and stores a DTC.
MONITOR STRATEGY
Related DTCs
P2431: Air flow/Pressure sensor circuit rationality
P2432: Air flow/Pressure sensor circuit range check (Low voltage)
P2433: Air flow/Pressure sensor circuit range check (High voltage)
P2436: Air flow/Pressure sensor circuit rationality
P2437: Air flow/Pressure sensor circuit range check (Low voltage)
P2438: Air flow/Pressure sensor circuit range check (High voltage)
Required Sensors/Components (Main)
Pressure sensor
Required Sensors/Components (Related) -
Duration
P2432, P2433, P2437, P2438: 0.5 seconds
P2431, P2436: 5 seconds
MIL Operation
P2432, P2433, P2437, P2438: Immediate
P2431, P2436: 2 driving cycles
TYPICAL ENABLING CONDITIONS
P2431 and P2436:
Monitor runs whenever following DTCs not stored
None
Starter
OFF
Battery voltage
8 V or more
Ignition switch
ON
AIR system pressure sensor circuit failure (P2432, P2433, P2437, P2438)
Not detected
P2432, P2433, P2437 and P2438
Monitor runs whenever following DTCs not stored
None
3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2431-P243...
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