1999 TOYOTA CAMRY light

DI±212
± DIAGNOSTICSENGINE (1MZ±FE)
447 Author: Date:
DTC No.
(See Page)Detection ItemTrouble AreaMILMemory
*2
P0133
(DI±259)
Heated Oxygen Sensor Circuit
Slow Response
(Bank 1 Sensor 1)Heated oxygen sensor
Fuel trim malfunction
*2
P0135
(DI±263)
Heated Oxygen Sensor Heater
Circuit Malfunction
(Bank 1 Sensor 1)Open or short in heater circuit of heated oxygen sensor
Heated oxygen sensor heater
ECM

P0136
(DI±265)Heated Oxygen Sensor Circuit
Malfunction
(Bank 1 Sensor 2)
Heated oxygen sensor
P0141
(DI±263)Heated Oxygen Sensor Heater
Circuit Malfunction
(Bank 1 Sensor 2)
Same as DTC No. P0135*1
*3
P0150
(DI±255)
Heated Oxygen Sensor
Circuit Malfunction
(Bank 2 Sensor 1)
Same as DTC No. P0130*1
*3
P0153
(DI±259)
Heated Oxygen Sensor
Circuit Slow Response
(Bank 2 Sensor 1)Same as DTC No. P0133
Fuel trim malfunction*1
*3
P0155
(DI±263)Heated Oxygen Sensor
Circuit Malfunction
(Bank 2 Sensor 1)
Same as DTC No. P0135*1
*3
P0171
(DI±272)System too Lean
(Fuel Trim)
(Except California Spec.)
Air intake (hose loose)
Fuel line pressure
Injector blockage
Heated oxygen sensor (bank 1, 2 sensor 1) malfunction
Mass air flow meter
Engine coolant temp. sensor
Gas leakage on exhaust system
*1
*3
P0172
(DI±272)System too Rich
(Fuel Trim)
(Except California Spec.)
Fuel line pressure
Injector leak, blockage
Heated oxygen sensor (bank 1, 2 sensor 1) malfunction
Mass air flow meter
Engine coolant temp. sensor
Gas leakage on exhaust system
*1
*4
P0171
(DI±267)System too Lean
(Fuel Trim)
(Only for California Spec.)
Air intake (hose loose)
Fuel line pressure
Injector blockage
Mass air flow meter
Engine coolant temp. sensor
A/F sensor (bank 1, 2 sensor 1)
Gas leakage on exhaust system
*1
*4
P0172
(DI±267)System too rich
(Fuel Trim)
(Only for California Spec.)
Fuel line pressure
Injector leak, blockage
Heated oxygen sensor malfunction
Mass air flow meter
Engine coolant temp. sensor
A/F sensor (bank 1, 2 sensor 1)
Gas leakage on exhaust system
*1
*1: MIL lights up
*2: MIL light up or blinking
*3: Except California specification vehicles
*4: Only for California specification vehicle

± DIAGNOSTICSENGINE (1MZ±FE)
DI±213
448 Author: Date:
DTC No.
(See Page)Detection ItemTrouble AreaMILMemory
P0300
(DI±276)Random/Multiple Cylinder
Misfire DetectedIgnition system
Injector
Fuel line pressure
EGR
P0301
P0302
P0303
P0304
P0305
P0306
(DI±276)Misfire Detected
± Cylinder 1
± Cylinder 2
± Cylinder 3
± Cylinder 4
± Cylinder 5
± Cylinder 6
EGR
Compression pressure
Valve clearance not to specification
Valve timing
Mass air flow meter
Engine coolant temp. sensor
Open or short engine wire
Connector connection
ECM
*2
P0325
(DI±283)Knock Sensor 1 Circuit
MalfunctionOpen or short in knock sensor 1 circuit
Knock sensor 1 (looseness)
ECM
*1
P0330
(DI±283)Knock Sensor 2 Circuit
MalfunctionOpen or short in knock sensor 2 circuit
Knock sensor 2 (looseness)
ECM
*1
P0335
(DI±287)Crankshaft Position Sensor
ºAº Circuit Malfunction
Open or short in crankshaft position sensor circuit
Crankshaft position sensor
Starter
ECM
*1
P0340
(DI±290)Camshaft Position Sensor
Circuit Malfunction
Open or short in camshaft position sensor circuit
Camshaft position sensor
Starter
ECM
*1
P0401
(DI±292)Exhaust Gas Recirculation
Flow Insufficient Detected
EGR valve (stuck closed)
Open or short in EGR gas temp. sensor circuit
EGR gas temp. sensor
Open in VSV circuit for EGR
VSV for EGR
Vacuum control valve
Vacuum hose disconnected or blocked
ECM
*1
P0402
(DI±302)Exhaust Gas Recirculation
Flow Excessive Detected
EGR valve stuck open
VSV for EGR open malfunction
Short in VSV circuit for EGR
Open or short in EGR valve position sensor circuit
EGR valve position sensor
ECM
*1
*3
P0420
(DI±305)Catalyst System Efficiency
Below Threshold
(Except California Spec.)Three±way catalytic converter
Open or short in heated oxygen sensor circuit
Heated oxygen sensor
*2
*4
P0420
(DI±308)Catalyst System Efficiency
Below Threshold
(Only for California Spec.)
Three±way catalytic converter
Open or short in heated oxygen sensor (bank 1, sensor 2)
circuit
Heated oxygen sensor (bank 1, sensor 2)
Open or short in A/F sensor (bank 1, 2 sensor 1) circuit
A/F sensor (bank 1, 2 sensor 1)
*2
*1: MIL lights up
*2: MIL lights up on U.S.A and Canadian specification vehicles
*3: Except California specification vehicles
*4: Only for California specification vehicle

DI±214
± DIAGNOSTICSENGINE (1MZ±FE)
449 Author: Date:
DTC No.
(See Page)Detection ItemTrouble AreaMIL*Memory
P0440
(DI±311)Evaporative Emission Control
System Malfunction
Vapor pressure sensor
Fuel tank cap incorrectly installed
Fuel tank cap cracked or damaged
Vacuum hose cracked, holed, blocked, damaged or
disconnected ((1) or (2) in fig. 1)
Hose or tube cracked, holed, damaged or loose seal
((3) in fig. 1)
Fuel tank cracked, holed or damaged
Charcoal canister cracked, holed or damaged
Fuel tank over fill check valve cracked or damaged
*1
P0441
(DI±318)Evaporative Emission Control
System Incorrect Purge Flow
Open or short in VSV circuit for EVAP
Open or short in VSV circuit for vapor pressure sensor
Open or short in vapor pressure sensor circuit
VSV for EVAP
VSV for vapor pressure sensor
Vapor pressure sensor
Vacuum hose cracks, holed blocked, damaged or
disconnected ((1), (4), (5), (6) and (7) in fig.1)
Charcoal canister cracks, holed or damaged
Fuel tank over fill check valve cracked or damaged

P0446
(DI±318)Evaporative Emission Control
System Vent Control
Malfunction
Open or short in VSV circuit for EVAP
Open or short in VSV circuit for vapor pressure sensor
Open or short in vapor pressure sensor circuit
VSV for EVAP
VSV for vapor pressure sensor
Vapor pressure sensor
Vacuum hose cracks, holed blocked, damaged or
disconnected ((1), (4), (5), (6) and (7) in fig.1)
Charcoal canister cracks, holed or damaged
Fuel tank over fill check valve cracked or damaged

P0450
(DI±331)Evaporative Emission Control
System Pressure Sensor
MalfunctionOpen or short in vapor pressure sensor circuit
Vapor pressure sensor
ECM

P0451
(DI±331)Evaporative Emission Control
System Pressure Sensor
Range/PerformanceOpen or short in vapor pressure sensor circuit
Vapor pressure sensor
ECM

P0500
(DI±333)Vehicle Speed Sensor
Malfunction
Open or short in speed sensor circuit
Vehicle speed sensor
Combination meter
ECM

P0505
(DI±336)Idle Control System
Malfunction
IAC valve is stuck or closed
Open or short in IAC valve circuit
Open or short in A/C signal circuit
Air intake (hose loose)

*: 


MIL lights up

± DIAGNOSTICSENGINE (1MZ±FE)
DI±215
450 Author: Date:
2. MANUFACTURER CONTROLLED
DTC No.
(See Page)Detection ItemTrouble AreaMIL*1Memory
*2
P1130
(DI±340)A/F Sensor Circuit
Range/Performance Malfunction
(Bank 1 Sensor 1)Open or short in A/F sensor circuit
A/F sensor (bank 1 sensor 2)
ECM

*2
P1133
(DI±345)A/F Sensor Circuit Response
Malfunction
(Bank 1 Sensor 1)
A/F sensor (bank 1 sensor 2)
*2
P1135
(DI±349)A/F Sensor Heater Circuit
Malfunction
(Bank1 Sensor 1)Open or short in A/F sensor (bank 1 sensor 2)
A/F sensor (bank 1 sensor 2) heater
ECM

*2
P1150
(DI±340)A/F Sensor Circuit
Range/Performance Malfunction
(Bank2 Sensor 1)
Same as DTC No. P1130
*2
P1153
(DI±345)A/F Sensor Circuit Response
Malfunction
(Bank 2 Sensor 1)
Same as DTC No. P1133
*2
P1155
(DI±349)A/F Sensor Heater Circuit
Malfunction
(Bank 2 Sensor 1)
Same as DTC No. P1135
P1300
(DI±351)Igniter Circuit Malfunction
Open or short in IGF or IGT circuit from igniter to ECM
Igniter
ECM

P1335
(DI±357)Crankshaft Position Sensor
Circuit Malfunction
(during engine running)Open or short in crankshaft position sensor circuit
Crankshaft position sensor
Starter
ECM
±
P1410
(DI±358)EGR Valve Position Sensor
Circuit MalfunctionOpen or short in EGR valve position sensor circuit
EGR valve position sensor
ECM

P1411
(DI±362)EGR Valve Position Sensor
Circuit Range/Performance
Problem
EGR valve position sensor
P1520
(DI±363)Stop Light Switch Signal
MalfunctionShort in stop light switch signal circuit
Stop light switch
ECM

P1600
(DI±366)ECM BATT MalfunctionOpen in back up power source circuit
ECM
P1780
(DI±368)Park/Neutral Position Switch
MalfunctionShort in park/neutral position switch circuit
Park/neutral position switch
ECM

*1:


MIL lights up, ±


MIL does not light up
*2: Only for California specification vehicles

DI±216
± DIAGNOSTICSENGINE (1MZ±FE)
451 Author: Date:
DTC No.
(See Page)Detection ItemTrouble AreaMIL*Memory
B2795
(DI±928)Unmatched key CodeImmobiliser system±
B2796
(DI±929)No Communication in
Immobiliser SystemImmobiliser system±
B2797
(DI±932)Communication Malfunction No.1Immobiliser system±
B2798
(DI±935)Communication Malfunction No.2Immobiliser system±
*:±


MIL does not light up

± DIAGNOSTICSENGINE (1MZ±FE)
DI±219
454 Author: Date:
Symbols (Terminals No.)Wiring ColorConditionSTD Voltage (V)
IG switch ON4.5 ~ 5.5
IGF (E11 ± 25) ± E1 (E10 ± 17)W±R eBRIdlingPulse generation
(See page DI±351)
THG (E10 ± 13)
± E2 (E10 ± 18)G±Y eBRIG switch ON4.5 ~ 5.5
G22+ (E11 ± 10)
± NE± (E10 ± 24)B±W eLIdlingPulse generation
(See page DI±287)
NE+ (E10 ± 16)
± NE± (E10 ± 24)B±R eLIdlingPulse generation
(See page DI±287)
ELS (E7 19) E1 (E10 17)GOBRTaillight switch ON7.5 ~ 14ELS (E7 ± 19) ± E1 (E10 ± 17)G±O eBRTaillight switch OFF0 ~ 1.5
ELS2 (E7 18) E1 (E10 17)BYBRDefogger switch ON7.5 ~ 14ELS2 (E7 ± 18) ± E1 (E10 ± 17)B±Y eBRDefogger switch OFF0 ~ 1.5
EGR (E11 ± 18)
± E01 (E11 ±21)Y±G eBRIG switch ON9 ~ 14
ACIS (E11 ± 17)
± E01 (E11 ± 21)R±Y eBRIG switch ON9 ~ 14
FC (E7 3) E01 (E11 21)GRBRIG switch ON9 ~ 14FC (E7 ± 3) ± E01 (E11 ± 21)G±R eBRIdling0 ~ 3.0
EVP1 (E10 ± 7)
± E01 (E11 ± 21)LG eBRIG switch ON9 ~ 14
RSC (E11 ± 15)
± E01 (E11 ± 21)Y±B eBRIG switch ON
Disconnect E11 of ECM connector9 ~ 14
RSO (E11 ± 16)
± E01 (E11 ± 21)R±W eBRIG switch ON
Disconnect E11 of ECM connector9 ~ 14
*OXR1 (E10 ± 11)
± E1 (E10 ± 17)W eBRMaintain engine speed at 2,500 rpm for 2 min. after
warming upPulse generation
(See page DI±305)
*OXL1 (E10 ± 12)
± E1 (E10 ± 17)B eBRMaintain engine speed at 2,500 rpm for 2 min. after
warming upPulse generation
(See page DI±305)
OXS (E8 ± 8) ± E1 (E10 ± 17)B eBRMaintain engine speed at 2,500 rpm for 2 min. after
warming upPulse generation
(See page DI±305)
*HTL (E10 4) E03 (E11 30)YRBRIdling9 ~ 14*HTL (E10± 4) ± E03 (E11 ± 30)Y±R eBRIG switch ONBelow 3.0
*HTR (E10 ± 3)LBBRIdling9 ~ 14HTR (E10 3)
± E03 (E11 ± 30)L±B eBRIG switch ONBelow 3.0
HTS (E8 9) E03 (E11 30)PGBRIdling9 ~ 14HTS (E8 ± 9) ± E03 (E11 ±30)P±G eBRIG switch ONBelow 3.0
KNKR (E11 ± 27)
± E1 (E10 ± 17)W eBRIdlingPulse generation
(See page DI±283)
KNKL (E11 ± 28)±
E1 (E10 ± 17)W eBRIdlingPulse generation
(See page DI±283)
NSW (E7 ± 20)BWBR
IG switch ON
Other shift position in ºPº ,ºNº position9 ~ 14NSW (E7 20)
± E1 (E10 ± 17)B±W eBRIG switch ON
Shift position in ºPº ,ºNº position0 ~ 3.0
SPD (E8 ± 22) ± E1 (E10 ± 17)V±W eBRIG switch ON
Rotate driving wheel slowlyPulse generation
*: Only for except California specification vehicles

P18349
DI±256
± DIAGNOSTICSENGINE (1MZ±FE)
491 Author: Date:
HINT:
If a malfunction exists, the MIL will light up during step (6).
NOTICE:
If the conditions in this test are not strictly followed, detection of the malfunction will not be possible.
If you do not have a TOYOTA hand±held tester, turn the ignition switch OFF after performing steps
(3) to (6), then perform steps (3) to (6) again.
INSPECTION PROCEDURE
HINT:
Read freeze frame data using TOYOTA hand±held tester or OBD II scan tool. Because freeze frame records
the engine conditions when the malfunction is detected, when troubleshooting it is useful for determining
whether the vehicle was running or stopped, the engine warmed up or not, the air±fuel ratio lean or rich, etc.
at the time of the malfunction.
1 Are there any other codes (besides DTC P0130, P0150) being output ?
YES Go to relevant DTC chart.
NO
2 Check the output voltage of heated oxygen sensors (bank1, 2 sensor1)
during idling.
PREPARATION:
Warm up the heated oxygen sensors (bank1, 2 sensor1) with the engine at 2,500 rpm for approx. 90 sec.
CHECK:
Use the OBD II scan tool or TOYOTA hand±held tester to read the output voltage of the heated oxygen sen-
sors (bank1, 2 sensor1) during idling.
OK:
Heated oxygen sensors (bank1, 2 sensor1) output voltage:
Alternates repeatedly between less than 0.4 V and more than 0.55 V (See the following table).
OK Go to step 8.
NG

± DIAGNOSTICSENGINE (1MZ±FE)
DI±267
502 Author: Date:
DTC P0171 System too Lean (Fuel Trim)
(Only for California Spec.)
DTC P0172 System too Rich (Fuel Trim)
(Only for California Spec.)
CIRCUIT DESCRIPTION
Fuel trim refers to the feedback compensation value compared against the basic injection time. Fuel trim
includes short±term fuel trim and long±term fuel trim.
Short±term fuel trim is the short±term fuel compensation used to maintain the air±fuel ratio at its ideal
theoretical value.
The signal from the A/F sensor is approximately proportional to the existing air±fuel ratio, and ECM compar-
ing it with the ideal theoretical value, the ECM reduces fuel volume immediately if the air±fuel ratio is rich
and increases fuel volume if it is lean.
Long±term fuel trim compensates the deviation from the central value of the short±term fuel trim stored up
by each engine tolerance, and the deviation from the central value due to the passage of time and changes
of using environment.
If both the short±term fuel trim and long±term fuel trim exceed a certain value, it is detected as a malfunction
and the MIL lights up.
DTC No.DTC Detecting ConditionTrouble Area
P0171
When air fuel ratio feedback is stable after engine warming up,
fuel trim is considerably in error on RICH side
(2 trip detection logic)

Gas leakage on exhaust system

Air intake (hose loose)

Fuel line pressure

Injector blockage

Mass air flow meter

Engine coolant temp. sensor

A/F sensors (bank 1, 2 sensor 1)
P0172
When air fuel ratio feedback is stable after engine warming up,
fuel trim is considerably in error on LEAN side
(2 trip detection logic)

Gas leakage on exhaust system

Fuel line pressure

Injector leak, blockage

Mass air flow meter

Engine coolant temp. sensor

A/F sensors (bank 1, 2 sensor 1)
DI07R±05