Toyota Tundra (2015 year). Manual — part 1078
Last Modified: 9-16-2014
6.6 T
Doc ID: RM000000PDG0Y0X
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: 1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: PROBLEM SYMPTOMS TABLE; 2015 MY Tundra
[08/2014 - ]
PROBLEM SYMPTOMS TABLE
Inspect the fuses and relays related to this system before inspecting the suspected areas below.
SFI System
SYMPTOM
SUSPECTED AREA
SEE
PAGE
Engine does not crank (Does not start)
Battery
Starter (for 1.6 kW Type)
Starter (for 2.0 kW Type)
Cranking Holding Function Circuit
Starter Relay
Park/Neutral Position Switch (for 2WD)
Park/Neutral Position Switch (for 4WD)
VC Output Circuit
No initial combustion (Does not start)
ECM Power Source Circuit
Crankshaft Position Sensor
Camshaft Position Sensor
Ignition System
Fuel Pump Control Circuit
Fuel Injector Circuit
ECM
VC Output Circuit
Immobiliser System
Engine cranks normally but difficult to
start
Fuel Pump Control Circuit
EGR Valve Assembly
Engine Coolant Temperature Sensor
Ignition System
Compression
Fuel Injector Assembly
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: PROBLEM ...
SYMPTOM
SUSPECTED AREA
SEE
PAGE
Fuel Injector Circuit
Air Induction System
Throttle with Motor Body Assembly
PCV Hose
Difficult to start with cold engine
Ignition System
Spark Plug
Fuel Pump Control Circuit
Fuel Injector Assembly
Difficult to start with warm engine
Fuel Injector Assembly
Ignition System
Spark Plug
Fuel Pump Control Circuit
High engine idle speed
Electronic Throttle Control System
A/C Signal Circuit (for Automatic Air Conditioning System)
A/C Signal Circuit (for Manual Air Conditioning System)
ECM Power Source Circuit
Acoustic Control Induction System (ACIS)
Low engine idle speed (Poor idling)
Electronic Throttle Control System
A/C Signal Circuit (for Automatic Air Conditioning System)
A/C Signal Circuit (for Manual Air Conditioning System)
Fuel Pump Control Circuit
Intake System
Acoustic Control Induction System (ACIS)
PCV Hose
Rough idling
Compression
Spark Plug
Fuel Injector Assembly
Ignition System
Fuel Pump Control Circuit
Electronic Throttle Control System
Intake System
Acoustic Control Induction System (ACIS)
PCV Hose
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: PROBLEM ...
SYMPTOM
SUSPECTED AREA
SEE
PAGE
Mass Air Flow Meter
EGR Valve Assembly
Hunting (poor idling)
Electronic Throttle Control System
Intake System
ECM Power Source Circuit
Acoustic Control Induction System (ACIS)
Hesitation and/or poor acceleration
Fuel Pump Control Circuit
Spark Plug
Ignition System
Fuel Injector Assembly
Mass Air Flow Meter
Electronic Throttle Control System
Intake System
Compression
Brake override system
Surging (Poor driveability)
Spark Plug
Fuel Pump Control Circuit
Ignition System
Fuel Injector Assembly
Mass Air Flow Meter
Variable Valve Timing System
Compression
Engine stalls soon after starting
Fuel Pump Control Circuit
Spark Plug
Ignition System
Fuel Injector Assembly
Variable Valve Timing System
Electronic Throttle Control System
Intake System
PCV Hose
Compression
EGR Valve Assembly
Engine stalls only during A/C operation A/C Signal Circuit (for Automatic Air Conditioning System)
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: PROBLEM ...
SYMPTOM
SUSPECTED AREA
SEE
PAGE
A/C Signal Circuit (for Manual Air Conditioning System)
ECM
Unable/difficult to refuel
Fuel system (canister, refueling valve, roll over valve, fuel
tank, etc.)
-
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: PROBLEM ...
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