Manual do usuário Toyota RM744U

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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. Detection Item Tro

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DI–15 DIAGNOSTICS – ENGINE P0136 Oxygen Sensor Circuit Malfunc-
Open or short in heated oxygen sensor circuit   (DI–58) tion (Bank 1 Sensor 2)
Heated oxygen sensor P0141 Oxygen Sensor Heater Circuit
Same as DTC No. P0135   (DI–56) Malfunction (Bank 1 Sensor 2)
Air induction system
Injector blockage
Mass air flow meter
Engine coolant temp. sensor P0171 System too Lean (Fuel Trim)
Fuel pressure   (DI–60)
Gas leakage on exhaust system
Open or short in heated oxygen sensor

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DI–16 DIAGNOSTICS – ENGINE
Hose or tube cracked, hole, damaged or loose seal
Fuel tank cap incorrectly installed
Fuel tank cap cracked or damaged
Vacuum hose cracked, hole, blocked,damaged or discon- nected P0440 Evaporative Emission Control
Fuel tank cracked, hole or damaged   (DI–81) System Malfunction
Charcoal canister cracked, hole or damaged
Open or short in vapor pressure sensor circuit
Vapor pressure sensor
Fuel tank over fill check valve cracked or damaged
ECM
Vac

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DI–17 DIAGNOSTICS – ENGINE MANUFACTURER CONTROLLED: DTC No. Detection Item Trouble Area MIL*1 Memory (See Page)
Ignition system
Open or short in IGF1 and IGT1 circuit from No.1 ignition coil P1300 Igniter Circuit Malfunction (No.1) with igniter to ECM   (DI–114)
No.1 ignition coil with igniter
ECM
Ignition system
Open or short in IGF2 and IGT2 circuit from No.2 ignition coil P1305 Igniter Circuit Malfunction (No.2) with igniter to ECM   (DI–114)
No.2 ignition coil with igniter

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DI–18 DIAGNOSTICS – ENGINE
Open or short in OCV circuit 2 P1693* OCV Close Malfunction (for
OCV for VVT–L   (DI–143) VVT–L)
ECM
Short in park/neutral position switch circuit 3 P1780* Park/Neutral Position Switch
Park/neutral position switch   (DI–145) Malfunction
ECM 1 * :  MIL lights up 2 * : 2ZZ–GE only 3 : A/T only * 2000 CELICA (RM744U)