2001 TOYOTA SEQUOIA fuel pressure
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± DIAGNOSTICSENGINE
DI±53
247 Author: Date:
2005 SEQUOIA (RM1146U)A/C SIG
A/C signal: ON or OFFON: A/C ON'
ELECT LOAD SIGElectrical load signal:
ON or OFFON: Headlights or defogger is
turned ON'
STOP LIGHT SWStop lamp switch:
ON or OFFON: brake pedal is depressed.'
+BM
Whether or not electric throttle
control system power inputted:
ON or OFF
ON: Idling'
+BM VOLTAGE+BM voltage:
Min.: 0, Max.: 19.9210 to 15 V: IdlingETCS service data
BATTERY VOLTAGEBattery voltage:
Min.: 0 V, Max.: 65.535 V9 to 14 V: Idling'
ACTUATOR POWERActuator power supply:
ON or OFFON: IdlingETCS service data
ATM PRESSUREAtmospheric pressure:
Min.: 0 kPa, Max.: 150 kPaEquivalent to atmospheric pres-
sure (absolute pressure)'
SECOND AIR VSVSecondary air injection system
statusON: Secondary air injection sys-
tem operation'
ACT VSVA/C cut status for Active Test:
ON or OFF'Active Test support data
EVAP (Purge) VSVVSV status for EVAP control:
ON or OFF'Active Test support data
FUEL PUMP / SPDFuel pump/speed status:
ON or OFF'Active Test support data
VVT CTRL B1VVT control status:
ON or OFF'Active Test support data
VVT CTRL B2VVT control status:
ON or OFF'Active Test support data
VACUUM PUMP
Key±off EVAP system pump sta-
tus:
ON or OFF
'Active Test support data
EVAP VENT VAL
Key±off EVAP system vent valve
status:
ON or OFF
'Active Test support data
TC/TE1TC and TE1 terminal of DLC3:
ON or OFF''
VVTL AIM ANGL #1VVT aim angle (bank 1):
Min.: 0 %, Max.: 100 %0 %: IdlingVVT duty signal value during intru-
sive operation
VVTL AIM ANGL #2VVT aim angle (bank 1):
Min.: 0 %, Max.: 100 %0 %: IdlingVVT duty signal value during intru-
sive operation
VVT CHNG ANGL #1VVT change angle:
Min.: 0FR, Max.: 60FR0 to 5 FR: IdlingDisplacement angle during intru-
sive operation
VVT CHNG ANGL #2VVT change angle:
Min.: 0FR, Max.: 60FR0 to 5 FR: IdlingDisplacement angle during intru-
sive operation
VVT OCV DUTY B1VVT OCV operation duty:
Min.: 0 %, Max.: 100 %0 %: IdlingRequested duty value for intrusive
operation
VVT OCV DUTY B2VVT OCV operation duty:
Min.: 0 %, Max.: 100 %0 %: IdlingRequested duty value for intrusive
operation
FC IDLFuel cut idle:
ON or OFFON: Fuel cut operation
FC IDL = ºONº when throttle valve
fully closed and engine speed over
2,800 rpm
Page 255 of 4323
± DIAGNOSTICSENGINE
DI±61
255 Author: Date:
2005 SEQUOIA (RM1146U)P0171
(DI±165)
System too Lean (Bank 1)
Air induction system
Injector blockage
Mass air flow meter
Engine coolant temperature sensor
Fuel pressure
Gas leakage on exhaust system
Open or short in heated oxygen sensor (bank 1 sensor 1)
circuit
Heated oxygen sensor (bank 1 sensor 1)
Heated oxygen sensor heater
EFI relay
PCV piping
ECM
P0172
(DI±165)System too Rich (Bank 1)
Injector leak, blockage
Mass air flow meter
Engine coolant temperature sensor
Ignition system
Fuel pressure
Gas leakage in exhaust system
Open or short in heated oxygen sensor (bank 1 sensor 1)
circuit
Heated oxygen sensor (bank 1 sensor 1)
ECM
P0174
(DI±165)System too Lean (Bank 2)
Air induction system
Injector blockage
Mass air flow meter
Engine coolant temperature sensor
Fuel pressure
Gas leakage on exhaust system
Open or short in heated oxygen sensor (bank 2 sensor 1)
circuit
Heated oxygen sensor (bank 2 sensor 1)
Heated oxygen sensor heater
EFI relay
PCV piping
ECM
P0175
(DI±165)System too Rich (Bank 2)
Injector leak, blockage
Mass air flow meter
Engine coolant temperature sensor
Ignition system
Fuel pressure
Gas leakage in exhaust system
Open or short in heated oxygen sensor (bank 2 sensor 1)
circuit
Heated oxygen sensor (bank 2 sensor 1)
ECM
P0220
(DI±127)Throttle/Pedal Position Sensor/
Switch ºBº CircuitThrottle control motor and sensor
ECM
P0222
(DI±127)Throttle/Pedal Position Sensor/
Switch ºBº Circuit Low Input
Throttle control motor and sensor
Short in VTA2 circuit
Open in VC circuit
ECM
P0223
(DI±127)Throttle/Pedal Position Sensor/
Switch ºBº Circuit High Input
Throttle control motor and sensor
Open in VTA2 circuit
Open in E2 circuit
VC and VTA2 circuit are short±circuited
ECM
Page 256 of 4323
DI±62
± DIAGNOSTICSENGINE
256 Author: Date:
2005 SEQUOIA (RM1146U)P0230
(DI±179)
Fuel Pump Primary Circuit
Open or short in fuel pump relay circuit
Fuel pump relay
Circuit opening relay
Fuel pump
ECM
±
P0300
(DI±184)Random/Multiple Cylinder Misfire
Detected
Open or short in engine wire
Connector connection
Vacuum hose connection
Ignition system
Injector
Fuel pressure
Mass air flow meter
Engine coolant temperature sensor
Compression pressure
Valve clearance
Valve timing
PCV piping
ECM
*2
P0301
(DI±184)Cylinder 1 Misfire Detected
Open or short in engine wire
Connector connection
Vacuum hose connection
Ignition system
Injector
Fuel pressure
Mass air flow meter
Engine coolant temperature sensor
Compression pressure
Valve clearance
Valve timing
PCV piping
ECM
*2
P0302
(DI±184)Cylinder 2 Misfire Detected
Open or short in engine wire
Connector connection
Vacuum hose connection
Ignition system
Injector
Fuel pressure
Mass air flow meter
Engine coolant temperature sensor
Compression pressure
Valve clearance
Valve timing
PCV piping
ECM
*2
P0303
(DI±184)Cylinder 3 Misfire Detected
Open or short in engine wire
Connector connection
Vacuum hose connection
Ignition system
Injector
Fuel pressure
Mass air flow meter
Engine coolant temperature sensor
Compression pressure
Valve clearance
Valve timing
PCV piping
ECM
*2
Page 257 of 4323
± DIAGNOSTICSENGINE
DI±63
257 Author: Date:
2005 SEQUOIA (RM1146U)P0304
(DI±184)
Cylinder 4 Misfire Detected
Open or short in engine wire
Connector connection
Vacuum hose connection
Ignition system
Injector
Fuel pressure
Mass air flow meter
Engine coolant temperature sensor
Compression pressure
Valve clearance
Valve timing
PCV piping
ECM
*2
P0305
(DI±184)Cylinder 5 Misfire Detected
Open or short in engine wire
Connector connection
Vacuum hose connection
Ignition system
Injector
Fuel pressure
Mass air flow meter
Engine coolant temperature sensor
Compression pressure
Valve clearance
Valve timing
PCV piping
ECM
*2
P0306
(DI±184)Cylinder 6 Misfire Detected
Open or short in engine wire
Connector connection
Vacuum hose connection
Ignition system
Injector
Fuel pressure
Mass air flow meter
Engine coolant temperature sensor
Compression pressure
Valve clearance
Valve timing
PCV piping
ECM
*2
P0307
(DI±184)Cylinder 7 Misfire Detected
Open or short in engine wire
Connector connection
Vacuum hose connection
Ignition system
Injector
Fuel pressure
Mass air flow meter
Engine coolant temperature sensor
Compression pressure
Valve clearance
Valve timing
PCV piping
ECM
*2
Page 258 of 4323
DI±64
± DIAGNOSTICSENGINE
258 Author: Date:
2005 SEQUOIA (RM1146U)P0308
(DI±184)
Cylinder 8 Misfire Detected
Open or short in engine wire
Connector connection
Vacuum hose connection
Ignition system
Injector
Fuel pressure
Mass air flow meter
Engine coolant temperature sensor
Compression pressure
Valve clearance
Valve timing
PCV piping
ECM
*2
P0325
(DI±204)Knock Sensor 1 Circuit (Bank 1
or Single Sensor)Open or short in knock sensor 1 circuit
Knock sensor 1 (looseness)
ECM
P0327
(DI±204)Knock Sensor 1 Circuit Low In-
put (Bank 1 or Single Sensor)Short in knock sensor circuit
Knock sensor
ECM
P0328
(DI±204)Knock Sensor 1 Circuit High In-
put (Bank 1 or Single Sensor)Open in knock sensor circuit
Knock sensor
ECM
P0330
(DI±204)Knock Sensor 2 Circuit (Bank 2)
Open or short in knock sensor 2 circuit
Knock sensor 2 (looseness)
ECM
P0332
(DI±204)Knock Sensor 2 Circuit High In-
put (Bank 2)Open in knock sensor circuit
Knock sensor
ECM
P0333
(DI±204)Knock Sensor 2 Circuit High In-
put (Bank 2)Open in knock sensor circuit
Knock sensor
ECM
P0335
(DI±210)Crankshaft Position Sensor ºAº
Circuit
Open or short in crankshaft position sensor circuit
Crankshaft position sensor
Signal plate
ECM
P0339
(DI±210)Crankshaft Position Sensor ºAº
Circuit Intermittent
Open or short in crankshaft position sensor circuit
Crankshaft position sensor
Signal plate
ECM
±
P0340
(DI±216)Camshaft Position Sensor ºAº
Circuit (Bank 1 or Single Sensor)
Open or short in camshaft position sensor circuit
Camshaft position sensor
LH camshaft timing pulley
Jumping teeth of timing belt
ECM
P0341
(DI±216)Camshaft Position Sensor ºAº
Circuit Range/Performance
(Bank 1 or Single Sensor)
Open or short in camshaft position sensor circuit
Camshaft position sensor
LH camshaft timing pulley
Jumping teeth of timing belt
ECM
P0345
(DI±221)Camshaft Position Sensor ºAº
Circuit (Bank 2)Open or short in camshaft position sensor circuit
VVT sensor
ECM
P0346
(DI±221)Camshaft Position Sensor ºAº
Circuit Range/Performance
(Bank 2)Open or short in camshaft position sensor circuit
VVT sensor
ECM
Page 260 of 4323
DI±66
± DIAGNOSTICSENGINE
260 Author: Date:
2005 SEQUOIA (RM1146U)P043E
(DI±445)
Evaporate Emission System
Reference Orifice Clog UpPump module
P043F
(DI±445)Evaporate Emission System
Reference Orifice High FlowPump module
P0441
(DI±257)Evaporative Emission Control
System Incorrect Purge Flow
Purge valve
Purge valve circuit (between purge valve and ECM)
Leakage from EVAP line (between purge valve and intake
manifold)
EVAP line (between purge valve and canister) clogged
ECM
P0450
(DI±264)Evaporative Emission Control
System Pressure Sensor/Switch
[Fuel Tank Pressure Sensor]
Pump module (including pressure sensor)
P0451
(DI±264)Evaporative Emission Control
System Pressure Sensor/Switch
Range/Performance
Pump module (including pressure sensor)
P0452
(DI±264)Evaporative Emission Control
System Pressure Sensor/Switch
Low InputPump module (including pressure sensor)
Connector/Wire harness (between pump module and ECM)
ECM
P0453
(DI±264)Evaporative Emission Control
System Pressure Sensor/Switch
High InputPump module (include pressure sensor)
Connector/Wire harness (between pump module and ECM)
ECM
P0455
(DI±273)Evaporative Emission Control
System Leak Detected (Gross
Leak)
Fuel tank cap (loose)
Leakage from EVAP line (between canister and fuel tank)
Leakage from EVAP line (between purge valve and canister)
Leakage from pump module
Leakage from fuel tank
Leakage from canister
P0456
(DI±273)Evaporative Emission Control
System Leak Detected (Very
Small Leak)
Same as DTC No. P0445
P0500
(DI±278)Vehicle Speed Sensor ºAº
Combination meter
Open or short in vehicle speed sensor circuit
Vehicle speed sensor
ECM
P0503
(DI±278)Vehicle Speed Sensor ºAº Inter-
mittent/Erratic/High
Combination meter
Open or short in vehicle speed sensor circuit
Vehicle speed sensor
ECM
±
P0504
(DI±283)Brake Switch ºAº/ºBº Correlation
Short in stop lamp switch signal circuit
STOP fuse
Stop lamp switch
ECM
±
P0505
(DI±288)Idle Air Control System
Air induction system
Electric throttle control system
PCV hose connection
P0560
(DI±292)System Voltage
Back±up power source circuit
EFI No. 1 fuse
ECM
P0604
(DI±296)Internal Control Module Random
Access Memory (RAM) ErrorECM
P0606
(DI±296)ECM/PCM ProcessorECM
P0607
(DI±296)Control Module PerformanceECM
Page 263 of 4323
± DIAGNOSTICSENGINE
DI±69
263 Author: Date:
2005 SEQUOIA (RM1146U)P2112
(DI±358)
Throttle Actuator Control System
± Stuck Closed
Throttle control motor and sensor circuit
Throttle control motor and sensor
Throttle valve
Throttle body
P2118
(DI±362)Throttle Actuator Control Motor
Current Range/PerformanceOpen in throttle control motor and sensor power source circuit
ETCS fuse
ECM
P2119
(DI±367)Throttle Actuator Control Throttle
Body Range/PerformanceElectric throttle control system
Throttle body
P2120
(DI±370)Throttle/Pedal Position Sensor/
Switch ºDº CircuitAccelerator pedal position sensor
ECM
P2121
(DI±380)Throttle/Pedal Position Sensor/
Switch ºDº Circuit Range/Perfor-
mance
Accelerator pedal position sensor
P2122
(DI±370)Throttle/Pedal Position Sensor/
Switch ºDº Circuit Low Input
Accelerator pedal position sensor
VCPA circuit open
VPA circuit open or ground short
ECM
P2123
(DI±370)Throttle/Pedal Position Sensor/
Switch ºDº Circuit High InputAccelerator pedal position sensor
EPA circuit open
ECM
P2125
(DI±370)Throttle/Pedal Position Sensor/
Switch ºEº CircuitAccelerator pedal position sensor
ECM
P2127
(DI±370)Throttle/Pedal Position Sensor/
Switch ºEº Circuit Low Input
Accelerator pedal position sensor
VCP2 circuit open
VPA2 circuit open or ground short
ECM
P2128
(DI±370)Throttle/Pedal Position Sensor/
Switch ºEº Circuit High InputAccelerator pedal position sensor
EPA circuit open
ECM
P2135
(DI±127)Throttle Pedal Position Sensor/
Switch ºAº / ºBº Voltage Correla-
tionThrottle control motor and sensor
VTA1 and VTA2 circuit are short±circuited
ECM
P2138
(DI±370)Throttle Pedal Position Sensor/
Switch ºDº / ºEº Voltage Correla-
tionVPA and VPA2 circuit are short circuited
Accelerator pedal position sensor
ECM
P2195
(DI±383)Oxygen (A/F) Sensor Signal
Stuck Lean (Bank 1 Sensor 1)
Open or short in A/F sensor (sensor 1) circuit
A/F sensor (sensor 1)
A/F sensor heater (sensor 1)
A/F relay
A/F sensor heater and EFI relay circuits
Air induction system
Fuel pressure
Injector
ECM
P2196
(DI±383)Oxygen (A/F) Sensor Signal
Stuck Rich (Bank 1 Sensor 1)
Open or short in A/F sensor (sensor 1) circuit
A/F sensor (sensor 1)
A/F sensor heater (sensor 1)
A/F relay
A/F sensor heater and EFI relay circuits
Air induction system
Fuel pressure
Injector
ECM
Page 264 of 4323
DI±70
± DIAGNOSTICSENGINE
264 Author: Date:
2005 SEQUOIA (RM1146U)P2197
(DI±383)
Oxygen (A/F) Sensor Signal
Stuck Lean (Bank 2 Sensor 1)
Open or short in A/F sensor (sensor 1) circuit
A/F sensor (sensor 1)
A/F sensor heater (sensor 1)
A/F relay
A/F sensor heater and EFI relay circuits
Air induction system
Fuel pressure
Injector
ECM
P2198
(DI±383)Oxygen (A/F) Sensor Signal
Stuck Rich (Bank 2 Sensor 1)
Open or short in A/F sensor (sensor 1) circuit
A/F sensor (sensor 1)
A/F sensor heater (sensor 1)
A/F relay
A/F sensor heater and EFI relay circuits
Air induction system
Fuel pressure
Injector
ECM
P2238
(DI±402)Oxygen Sensor Pumping Cur-
rent Circuit Low (For A/F Sensor)
(Bank 1 Sensor 1)
Open or short in A/F sensor (sensor 1) circuit
A/F sensor (sensor 1)
A/F sensor heater (sensor 1)
A/F relay
A/F sensor heater and EFI relay circuits
P2239
(DI±402)Oxygen Sensor Pumping Cur-
rent Circuit High (For A/F Sen-
sor) (Bank 1 Sensor 1)
Open or short in A/F sensor (sensor 1) circuit
A/F sensor (sensor 1)
A/F sensor heater (sensor 1)
A/F relay
A/F sensor heater and EFI relay circuits
P2241
(DI±402)Oxygen Sensor Pumping Cur-
rent Circuit Low (For A/F Sensor)
(Bank 2 Sensor 1)
Open or short in A/F sensor (sensor 1) circuit
A/F sensor (sensor 1)
A/F sensor heater (sensor 1)
A/F relay
A/F sensor heater and EFI relay circuits
P2242
(DI±402)Oxygen Sensor Pumping Cur-
rent Circuit High (For A/F Sen-
sor) (Bank 2 Sensor 1)
Open or short in A/F sensor (sensor 1) circuit
A/F sensor (sensor 1)
A/F sensor heater (sensor 1)
A/F relay
A/F sensor heater and EFI relay circuits
P2252
(DI±402)Oxygen Sensor Reference
Ground Current Circuit Low (For
A/F Sensor) (Bank 1 Sensor 1)
Open or short in A/F sensor (sensor 1) circuit
A/F sensor (sensor 1)
A/F sensor heater (sensor 1)
A/F relay
A/F sensor heater and EFI relay circuits
P2253
(DI±402)Oxygen Sensor Reference Cur-
rent Circuit High (For A/F Sen-
sor) (Bank 1 Sensor 1)
Open or short in A/F sensor (sensor 1) circuit
A/F sensor (sensor 1)
A/F sensor heater (sensor 1)
A/F relay
A/F sensor heater and EFI relay circuits
P2255
(DI±402)Oxygen Sensor Reference
Ground Current Circuit Low (For
A/F Sensor) (Bank 2 Sensor 1)
Open or short in A/F sensor (sensor 1) circuit
A/F sensor (sensor 1)
A/F sensor heater (sensor 1)
A/F relay
A/F sensor heater and EFI relay circuits
P2256
(DI±402)Oxygen Sensor Reference Cur-
rent Circuit High (For A/F Sen-
sor) (Bank 2 Sensor 1)
Open or short in A/F sensor (sensor 1) circuit
A/F sensor (sensor 1)
A/F sensor heater (sensor 1)
A/F relay
A/F sensor heater and EFI relay circuits