Toyota Automobile Parts Rm744u User Manual
DI–14  
DIAGNOSTICS  
–
ENGINE  
DI37T–03  
DIAGNOSTIC TROUBLE CODE CHART  
HINT:  
Parameters listed in the chart may not be exactly the same as your reading due to the type of instrument  
or other factors.  
If a malfunction code is displayed during the DTC check in check mode, check the circuit for that code listed  
in the table below. For details of each code, turn to the page referred to under the ’’See page ’’ for the respec-  
tive ’’DTC No.’’ in the DTC chart.  
SAE CONTROLLED:  
1
DTC No.  
DetectionItem  
TroubleArea  
MIL*  
Memory  
SOpen or short in mass air flow meter circuit  
P0100  
Mass Air Flow Circuit Malfunc-  
tion  
SMass air flow meter  
f
f
(DI–23)  
SECM  
P0101  
Mass Air Flow Circuit Range/  
PerformanceProblem  
SMass air flow meter  
f
f
f
f
(DI–27)  
SOpen or short in intake air temp. sensor circuit  
SIntake air temp. sensor (built into mass air flow meter)  
SECM  
P0110  
Intake Air Temp. Circuit Malfunc-  
tion  
(DI–28)  
SOpen or short in engine coolant temp. sensor circuit  
SEngine coolant temp. sensor  
SECM  
P0115  
Engine Coolant Temp. Circuit  
Malfunction  
f
f
f
f
f
f
(DI–33)  
P0116  
Engine Coolant Temp. Circuit  
Range/PerformanceProblem  
SCoolingsystem  
(DI–37)  
SEngine coolant temp. sensor  
SOpen or short in throttle position sensor circuit  
SThrottlepositionsensor  
SECM  
P0120  
Throttle/PedalPositionSensor/  
Switch ”A” Circuit Malfunction  
(DI–38)  
Throttle/PedalPositionSensor/  
Switch ”A” Circuit Range/Perfor-  
manceProblem  
P0121  
SThrottlepositionsensor  
f
f
(DI–43)  
SECM  
SOpen or short in heated oxygen sensor (bank 1 sensor 1)  
circuit  
SHeated oxygen sensor (bank 1 sensor 1)  
SAir induction system  
SFuelpressure  
P0125  
Insufficient Coolant Temp. for  
Closed Loop Fuel Control  
f
f
(DI–44)  
SInjector  
SGas leakage on exhaust system  
SECM  
SOpen or short in heated oxygen sensor circuit  
SHeated oxygen sensor  
Heated Oxygen Sensor Circuit SAir induction system  
P0130  
Malfunction (Bank 1 Sensor 1) SEGR system  
f
f
(DI–49)  
SFuelpressure  
SInjector  
(Except Calif.)  
SECM  
SOpen or short in heated oxygen sensor circuit  
SHeated oxygen sensor  
SAir induction system  
SEGR system  
P0133  
Oxygen Sensor Circuit Slow Re-  
sponse (Bank 1 Sensor 1)  
f
f
(DI–53)  
SFuelpressure  
SInjector  
SECM  
SOpen or short in heater circuit of heated oxygen sensor  
P0135  
Oxygen Sensor Heater Circuit  
Malfunction (Bank 1 Sensor 1)  
SHeated oxygen sensor heater  
f
f
(DI–56)  
SECM  
2000 CELICA (RM744U)  
 
DI–16  
DIAGNOSTICS  
–
ENGINE  
SHose or tube cracked, hole, damaged or loose seal  
SFuel tank cap incorrectly installed  
SFuel tank cap cracked or damaged  
SVacuum hose cracked, hole, blocked,damaged or discon-  
nected  
P0440  
EvaporativeEmissionControl  
SystemMalfunction  
SFuel tank cracked, hole or damaged  
SCharcoal canister cracked, hole or damaged  
SOpen or short in vapor pressure sensor circuit  
SVapor pressure sensor  
f
f
(DI–81)  
SFuel tank over fill check valve cracked or damaged  
SECM  
SVacuum hose cracked, hole, blocked damaged or discon-  
nected  
P0441  
EvaporativeEmissionControl  
System Incorrect Purge Flow  
SOpen or short in vapor pressure sensor circuit  
SVapor pressure sensor  
(DI–87)  
SOpen or short in VSV circuit for EVAP  
SVSV for EVAP  
f
f
SOpen or short in VSV circuit for vapor pressure sensor  
SVSV for vapor pressure sensor  
SCharcoal canister cracked, hole or damaged  
SFuel tank over fill check valve cracked or damaged  
SECM  
P0446  
EvaporativeEmissionControl  
(DI–87)  
System VentControlMalfunction  
EvaporativeEmissionControl  
System Pressure Sensor Mal-  
function  
P0450  
(DI–104)  
SOpen or short in vapor pressure sensor circuit  
SVapor pressure sensor  
SECM  
f
f
EvaporativeEmissionControl  
System Pressure Sensor Range/  
Performance  
P0451  
(DI–104)  
SCombinationmeter  
P0500  
Vehicle Speed Sensor Malfunc- SOpen or short in vehicle speed sensor circuit  
f
f
f
f
(DI–106)  
tion  
SVehicle speed sensor  
SECM  
SOpen or short in IAC valve circuit  
SIAC valve is stuck or closed  
P0505  
Idle Control System Malfunction SOpen or short in A/C switch circuit  
(DI–109)  
SAir induction system  
SECM  
*1: f @@@ MIL lights up  
2000 CELICA (RM744U)  
DI–17  
DIAGNOSTICS  
–
ENGINE  
MANUFACTURER CONTROLLED:  
DTC No.  
DetectionItem  
(See Page)  
TroubleArea  
MIL*1  
Memory  
SIgnitionsystem  
SOpen or short in IGF1 and IGT1 circuit from No.1 ignition coil  
P1300  
Igniter Circuit Malfunction (No.1)  
(DI–114)  
with igniter to ECM  
SNo.1 ignition coil with igniter  
SECM  
f
f
f
f
f
SIgnitionsystem  
SOpen or short in IGF2 and IGT2 circuit from No.2 ignition coil  
P1305  
Igniter Circuit Malfunction (No.2)  
(DI–114)  
with igniter to ECM  
SNo.2 ignition coil with igniter  
SECM  
f
f
f
SIgnitionsystem  
SOpen or short in IGF2 and IGT3 circuit from No.3 ignition coil  
P1310  
Igniter Circuit Malfunction (No.3)  
(DI–114)  
with igniter to ECM  
SNo.3 ignition coil with igniter  
SECM  
SIgnitionsystem  
SOpen or short in IGF1 and IGT4 circuit from No.4 ignition coil  
P1315  
Igniter Circuit Malfunction (No.4)  
(DI–114)  
with igniter to ECM  
SNo.4 ignition coil with igniter  
SECM  
SOpen or short in crankshaft position sensor circuit  
Crankshaft Position Sensor Cir-  
P1335  
SCrankshaft position sensor  
SSignalplate  
cuitMalfunction(Duringengine  
f
f
f
f
f
f
(DI–120)  
running)  
SECM  
VVTSensor/CamshaftPosition SMechanical system (Jumping teeth of timing belt, belt  
P1346  
SensorCircuitRange/Perfor-  
mance Problem (Bank 1)  
stretched)  
(DI–121)  
SECM  
SValvetiming  
P1349  
VVT System Malfunction (Bank SOCV  
(DI–123)  
1)  
SVVT controller assembly  
SECM  
SShort in stop light switch signal circuit  
SStop light switch  
P1520  
Stop Light Switch Signal Mal-  
function  
f
f
f
f
f
f
(DI–130)  
SECM  
P1600  
SOpen in back up power source circuit  
ECM BATTMalfunction  
Body ECU Malfunction  
(DI–133)  
SECM  
SBody ECU  
P1645  
SA/C ECU  
(DI–135)  
SCommunicationbus  
SOpen or short in OCV circuit  
SOCV for VVT–i  
SECM  
P1656  
OCV Circuit Malfunction (for  
VVT–i)  
f
f
f
f
f
f
(DI–136)  
SOpen or short in OCV circuit  
SOCV for VVT–L  
SECM  
2
P1690*  
OCV Circuit Malfunction (for  
VVT–L)  
(DI–139)  
SOpen or short in OCV circuit  
SOCV for VVT–L  
SECM  
2
P1692*  
OCV Open Malfunction (for  
VVT–L)  
(DI–143)  
2000 CELICA (RM744U)  
DI–18  
DIAGNOSTICS  
–
ENGINE  
SOpen or short in OCV circuit  
SOCV for VVT–L  
SECM  
2
P1693*  
OCV Close Malfunction (for  
VVT–L)  
f
f
f
f
(DI–143)  
SShort in park/neutral position switch circuit  
SPark/neutralpositionswitch  
SECM  
3
P1780*  
Park/NeutralPositionSwitch  
Malfunction  
(DI–145)  
*1: f @@@ MIL lights up  
*2: 2ZZ–GE only  
*3: A/T only  
2000 CELICA (RM744U)  

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