Toyota Tundra (2015 year). Manual — part 2001
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.
INSPECTION PROCEDURE
NOTICE:
After turning ignition switch off, waiting time may be required before disconnecting the cable from the
negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the
negative (-) battery terminal notices before proceeding with work
.
HINT:
Read freeze frame data using the Techstream. The ECM records vehicle and driving condition
information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame
data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if
the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
PROCEDURE
1.
CHECK DTC
(a) Clear DTC
.
(b) Turn the ignition switch off.
(c) Disconnect the cable from the negative battery terminal and wait for 1 minute.
(d) Connect the cable to the negative battery terminal.
(e) Turn the ignition switch to ON.
(f) Check DTC.
OK:
P1607 is not present.
NG
REPLACE ECM
OK
CHECK FOR INTERMITTENT PROBLEMS
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1607; Cruise...
Last Modified: 9-16-2014
6.6 C
Doc ID: RM0000013HE05VX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: 3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1613,P1614; Secondary Air Injection Driver
Malfunction; 2015 MY Tundra [08/2014 - ]
DTC
P1613
Secondary Air Injection Driver Malfunction
DTC
P1614
Secondary Air Injection System Driver Bank 2
DESCRIPTION
Refer to DTC P0412
.
DTC
CODE
DTC DETECTION CONDITION
TROUBLE AREA
P1613
P1614
logic):
Diagnostic signal from Air Injection
Control Driver (AID) 80%
Battery voltage 8 V or more
Battery voltage 8 V or more
Diagnostic signal from AID abnormal
(duty signal other than 0, 20, 40, 80 and
100%)
AID
Open in AID ground circuit
P1613
P1614
Air injection system operating
(Air Switching Valve [ASV] ON
and air pump ON)
a.
Diagnostic signal from Air
Injection Control Driver (AID) 0%
b.
Battery voltage 8 V or more
c.
Short in diagnostic information
signal circuit (AID - ECM)
Open or short in air pump and air
switching valve command signal
circuit (AID - ECM)
Open in AID ground circuit
AID
ECM
P1613
P1614
Battery voltage 8 V or more
a.
Diagnostic signal from Air
Injection Control Driver (AID)
100%
b.
Open or short in AID +B circuit
Open in diagnostic information signal
circuit (AID - ECM)
AID
ECM
MONITOR DESCRIPTION
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1613,P1614;...
For a short time after cold engine starts, the ECM transmits command signals to the Air Injection Control
Driver (AID) to drive the air pump and the Air Switching Valve (ASV). The AID detects open and short circuits
If the Secondary Air Injection (AIR) system circuit or the AID itself malfunctions, the AID sends a malfunction
signal (duty signal) as diagnostic information to the ECM (when the system is normal, a system normal signal
is sent). The ECM sets the DTC based on the diagnostic information from the AID.
EXAMPLE:
1.
2.
The AID outputs the normal signal (normal duty signal: 80%) while the system is not operating.
3.
MONITOR STRATEGY
Related DTCs
P1613: Secondary air injection system air injection control driver
circuit range check
P1614: Secondary air injection system air injection control driver
circuit range check
Required Sensors/Components
(Main)
Air injection control driver
Required Sensors/Components
(Related)
Air switching valve
Duration
3 seconds
MIL Operation
Immediate
TYPICAL ENABLING CONDITIONS
Case 1 and 4:
Monitor runs whenever following DTCs not present
None
Battery voltage
8 V or more
Ignition switch
ON
Starter
OFF
Case 2:
Monitor runs whenever following DTCs not present
None
Either a or b met:
-
a. Air pump
Not operating
b. Air switching valve
Not operating
Battery voltage
8 V or more
Ignition switch
ON
Starter
OFF
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1613,P1614;...
Case 3:
Monitor runs whenever following DTCs not present
None
Following conditions (a) and (b) met
-
a. Air pump
Operating
b. Air switching valve
Operating
Battery voltage
8 V or more
Ignition switch
ON
Starter
OFF
TYPICAL MALFUNCTION THRESHOLDS
Case 1:
A. Diagnostic signal duty ratio from air injection control driver
1% or more, and 10% or less
B. Diagnostic signal duty ratio from air injection control driver
30%
C. Diagnostic signal duty ratio from air injection control driver
49%
D. Diagnostic signal duty ratio from air injection control driver
91% or more, and 99% or less
Case 2:
Diagnostic signal duty ratio from air injection control driver
70% or more, and 90% or less
Case 3:
Diagnostic signal duty ratio from air injection control driver
0%
Case 4:
Diagnostic signal duty ratio from air injection control driver
100%
COMPONENT OPERATING RANGE
Diagnostic signal duty ratio from air injection
control driver
70% or more, and 90% or less when secondary air injection
system operating.
0% when secondary air injection system not operating.
CONFIRMATION DRIVING PATTERN
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1613,P1614;...
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