Toyota Tundra (2015 year). Manual — part 1199
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P050B; Cold St...
Last Modified: 9-16-2014
6.6 C
Doc ID: RM000001EY9049X
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: 1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0550,P0552,P0553; Power Steering Pressure Sensor
Circuit; 2015 MY Tundra [08/2014 - ]
DTC
P0550
Power Steering Pressure Sensor Circuit
DTC
P0552
Power Steering Pressure Sensor / Switch Circuit Low Input
DTC
P0553
Power Steering Pressure Sensor / Switch Circuit High Input
DESCRIPTION
The power steering oil pressure sensor is turned ON when a power steering wheel load occurs by turning the
NO.
DTC DETECTION CONDITION
TROUBLE AREA
P0550
Power steering oil pressure sensor voltage less than 0.28 V,
or more than 4.9 V for 0.5 seconds while engine running.
(1 trip detection logic)
Open or short in power
steering oil pressure sensor
circuit
Power steering oil pressure
sensor
ECM
P0552
Power steering oil pressure sensor voltage less than 0.28 V
for 0.5 seconds while engine running.
(1 trip detection logic)
Open or short in power
steering oil pressure sensor
circuit
Power steering oil pressure
sensor
ECM
P0553
Power steering oil pressure sensor voltage more than 4.9 V
for 0.5 seconds while engine running.
(1 trip detection logic)
Open or short in power
steering oil pressure sensor
circuit
Power steering oil pressure
sensor
ECM
MONITOR DESCRIPTION
The ECM monitors the sensor voltage and uses this value to regulate the engine idling speed. When the sensor
output voltage deviates from the normal operating range, the ECM determines that there is a malfunction in the
power steering oil pressure sensor and stores a DTC.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0550,P0552,...
MONITOR STRATEGY
Related DTCs
P0550: Power steering pressure sensor range check (Chattering)
P0552: Power steering pressure sensor range check (Low Resistance)
P0553: Power steering pressure sensor range check (High Resistance)
Required sensors/Components (Main)
Power steering oil pressure sensor
Duration
0.5 seconds
MIL operation
Immediate
TYPICAL ENABLING CONDITIONS
Monitor runs whenever following DTCs not present
None
Starter
OFF
Time after starter signal ON to OFF
2 seconds or more
TYPICAL MALFUNCTION THRESHOLDS
P0550
Power steering oil pressure sensor voltage
Less than 0.28 V, or more than 4.9 V
P0552
Power steering oil pressure sensor voltage
Less than 0.28 V
P0553
Power steering oil pressure sensor voltage
More than 4.9 V
CONFIRMATION DRIVING PATTERN
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.
Start the engine.
6.
Idle the engine for 5 seconds [A].
7.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [B].
8.
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.
9.
Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
10.
Input the DTC: P0550, P0552 or P0553.
11.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0550,P0552,...
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 INCOMPLETE or N/A, perform steps [A] through [B] again.
12.
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.
13.
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0550,P0552,...
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