Toyota Tundra (2015 year). Manual — part 1982
A
FREEZE FRAME DATA ITEM FOR DTC P1605
SUSPECTED
AREA
PROCEED
TO
ELECTRICAL LOAD SIGNAL
OR ELECTRIC LOAD
FEEDBACK VAL
ELECTRIC LOAD
FEEDBACK VAL
DIFFERENCE
BETWEEN ENGINE
SPEED AND SPD
(NT)
VEHICLE
SPEED
value displayed for Electric
Load Feedback Val does not
increase
data is less than 100
rpm
30 km/h
or more
-
A
rpm or more
-
-
A
HINT:
*: If the Electrical Load Signal display changes from OFF to ON, or the "Electric Load Feedback Val"
increases, it probably is a malfunction due to a change in electrical load. Check the generator and the
continuity and connections between the generator and ECM.
The normal value for the ISC learned value is engine displacement (liters) x 0.9.
Even if the results are normal, the electrical load signal system and/or A/T system may have been
malfunctioning. If there are no problems with other parts, inspect the electrical load system and/or A/T
system.
B
CHECK AUTOMATIC TRANSMISSION SYSTEM
C
CHECK GENERATOR CIRCUIT
69.
CHECK FREEZE FRAME DATA
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which
were present when the DTC was stored
.
Result
FREEZE FRAME DATA ITEM FOR DTC P1605
SUSPECTED AREA
PROCEED
TO
SHIFT SW STATUS (P RANGE)
SHIFT SW STATUS (N RANGE)
NEUTRAL POSITION SW
SIGNAL
P and N position are both OFF in at
least one data set
In D or R, NSW is ON
Park/neutral position switch
assembly
A
In D or R, NSW is OFF
A/T system
B
-
C
HINT:
Even if the results are normal, the park/neutral position switch assembly and/or A/T system may have
been malfunctioning. If there are no problems with other parts, inspect the park/neutral position switch
assembly and/or A/T system.
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1603,P1605;...
A
B
CHECK AUTOMATIC TRANSMISSION SYSTEM
C
CHECK FOR INTERMITTENT PROBLEMS
A
INSPECT PARK/NEUTRAL POSITION SWITCH
70.
CHECK FREEZE FRAME DATA
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Using the Techstream, confirm the vehicle conditions recorded in the freeze frame data which
were present when the DTC was stored
.
Result
FREEZE FRAME DATA ITEM
RESULT
SUSPECTED
AREA
PROCEED
TO
Throttle Sensor Position,
Calculate Load
Calculate Load decreases while Throttle Sensor
Position increases
Mass air flow
meter
A
Calculate Load does not decrease while Throttle
Sensor Position increases
-
B
B
GO TO STEP 74
71.
CHECK MASS AIR FLOW METER
(a) Remove the mass air flow meter.
RESULT
PROCEED TO
Visible foreign matter is not present
A
Visible foreign matter is present
B
HINT:
Perform "Inspection After Repair" after replacing the mass air flow meter
.
B
REPLACE MASS AIR FLOW METER
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1603,P1605;...
A
OK
OK
72.
CHECK HARNESS AND CONNECTOR (ECM - MASS AIR FLOW METER)
(a) Check the harnesses and connectors, referring to DTC P0102 inspection procedure
.
HINT:
REPAIR OR REPLACE HARNESS OR CONNECTOR
73.
PERFORM DRIVE TEST
(a) Connect the Techstream to the DLC3.
(b) Start the engine and warm it up until the engine coolant temperature stabilizes.
HINT:
The A/C switch and all accessory switches should be off.
(c) Idle the engine.
DATA LIST
SPECIFIED CONDITION
Calculate Load
Perform "Inspection After Repair" after replacing the mass air flow meter
.
NG
REPLACE MASS AIR FLOW METER
74.
CHECK TERMINAL VOLTAGE (FUEL INJECTOR POWER SOURCE)
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1603,P1605;...
OK
(a) Disconnect the fuel injector assembly connectors.
(b) Turn the ignition switch to ON.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
CYLINDER
TESTER CONNECTION
SWITCH CONDITION
SPECIFIED CONDITION
No. 1
H1-2 - Body ground
Ignition switch ON
11 to 14 V
No. 2
F1-2 - Body ground
Ignition switch ON
11 to 14 V
No. 3
H2-2 - Body ground
Ignition switch ON
11 to 14 V
No. 4
F2-2 - Body ground
Ignition switch ON
11 to 14 V
No. 5
H3-2 - Body ground
Ignition switch ON
11 to 14 V
No. 6
F3-2 - Body ground
Ignition switch ON
11 to 14 V
No. 7
H4-2 - Body ground
Ignition switch ON
11 to 14 V
No. 8
F4-2 - Body ground
Ignition switch ON
11 to 14 V
HINT:
REPAIR FUEL INJECTOR POWER SOURCE
CIRCUIT
75.
CHECK IGNITION SYSTEM
(a) Perform ignition system On-vehicle Inspection
.
HINT:
Perform "Inspection After Repair" after repairing or replacing the ignition system
.
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1603,P1605;...
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