Sfi System (For Hatchback) Problem Symptoms Table

Engine Hybrid System. Yaris. Ncp93, 131
1Nz-Fe Engine Control. Yaris. Ncp93, 131

Sfi System (For Hatchback) -- Problem Symptoms Table


HINT:
  1. Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
  2. 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
YARIS_NCP93 RM000001GNJ010X_01_0001.html
Starter relay
YARIS_NCP93 RM0000017WF035X_01_0009.html
Starter (except Cold Area)
YARIS_NCP93 RM0000025DD01JX.html
Starter (for Cold Area)
YARIS_NCP93 RM0000034TA00ZX.html
Clutch start switch assembly (for Manual Transaxle)
YARIS_NCP93 RM000001B3B010X_01_0001.html
Park/neutral position switch assembly (for Automatic Transaxle)
YARIS_NCP93 RM00000191B033X.html
Starter signal circuit
YARIS_NCP93 RM000002XN20BLX.html
No initial combustion (Does not start)
ECM power source circuit
YARIS_NCP93 RM000001F7102NX.html
Crankshaft position sensor
YARIS_NCP93 RM000000TCW0O6X_08.html
Ignition system
YARIS_NCP93 RM000001EFG05SX_01_0003.html
Fuel pump control circuit
YARIS_NCP93 RM000001F7001EX.html
Fuel pump
YARIS_NCP93 RM000000SL6038X.html
Fuel injector circuit
YARIS_NCP93 RM000000ZRM0CSX.html
Valve timing
YARIS_NCP93 RM000000PDU0LTX_09_0005.html
VC output circuit (ECM 5 V output)
YARIS_NCP93 RM000001D6V0IPX.html
Camshaft position sensor
YARIS_NCP93 RM0000012JE06JX_08.html
Starter signal circuit
YARIS_NCP93 RM000002XN20BLX.html
Engine immobiliser system (w/ Engine Immobiliser System)
YARIS_NCP93 RM000001TC901YX.html
ECM
YARIS_NCP93 RM000000PDH0HSX.html
Engine cranks normally but difficult to start
Fuel pump control circuit
YARIS_NCP93 RM000001F7001EX.html
Fuel pump
YARIS_NCP93 RM000000SL6038X.html
Fuel injector circuit
YARIS_NCP93 RM000000ZRM0CSX.html
ECM power source circuit
YARIS_NCP93 RM000001F7102NX.html
Starter signal circuit
YARIS_NCP93 RM000002XN20BLX.html
Engine coolant temperature sensor
YARIS_NCP93 RM000003VIB00IX.html
Intake system
YARIS_NCP93 RM000004VL8003X_01_0001.html
Ignition system
YARIS_NCP93 RM000001EFG05SX_01_0003.html
Spark plug
YARIS_NCP93 RM000001EFG05SX_01_0002.html
Throttle with motor body assembly
YARIS_NCP93 RM000003VHP00GX.html
Compression
YARIS_NCP93 RM000001DCF01PX_01_0008.html
Incomplete intermittent combustion occurs (Does not start)
Fuel pump control circuit
YARIS_NCP93 RM000001F7001EX.html
Fuel pump
YARIS_NCP93 RM000000SL6038X.html
Fuel line
YARIS_NCP93 RM000001IQZ080X.html
Ignition circuit
YARIS_NCP93 RM000000XH40MYX_08.html
Ignition system
YARIS_NCP93 RM000001EFG05SX_01_0003.html
Fuel injector circuit
YARIS_NCP93 RM000000ZRM0CSX.html
ECM power source circuit
YARIS_NCP93 RM000001F7102NX.html
Starter signal circuit
YARIS_NCP93 RM000002XN20BLX.html
Crankshaft position sensor
YARIS_NCP93 RM000000TCW0O6X_08.html
Camshaft position sensor
YARIS_NCP93 RM0000012JE06JX_08.html
Engine immobiliser system (w/ Engine Immobiliser System)
YARIS_NCP93 RM000001TC901YX.html
Valve timing
YARIS_NCP93 RM000000PDU0LTX_09_0005.html
High engine idle speed
Throttle with motor body assembly
YARIS_NCP93 RM000003VHP00GX.html
Intake system
YARIS_NCP93 RM000004VL8003X_01_0001.html
A/C signal circuit
YARIS_NCP93 RM000000PM608AX.html
ECM power source circuit
YARIS_NCP93 RM000001F7102NX.html
Engine coolant temperature sensor
YARIS_NCP93 RM000003VIB00IX.html
PCV valve and hose
YARIS_NCP93 RM000001RN103YX.html
Low engine idle speed (Poor idling)
Throttle with motor body assembly
YARIS_NCP93 RM000003VHP00GX.html
A/C signal circuit
YARIS_NCP93 RM000000PM608AX.html
Fuel pump control circuit
YARIS_NCP93 RM000001F7001EX.html
Fuel pump
YARIS_NCP93 RM000000SL6038X.html
Intake system
YARIS_NCP93 RM000004VL8003X_01_0001.html
PCV valve and hose
YARIS_NCP93 RM000001RN103YX.html
Rough idling
Compression
YARIS_NCP93 RM000001DCF01PX_01_0008.html
Ignition system
YARIS_NCP93 RM000001EFG05SX_01_0003.html
Spark plug
YARIS_NCP93 RM000001EFG05SX_01_0002.html
Fuel injector circuit
YARIS_NCP93 RM000000ZRM0CSX.html
ECM power source circuit
YARIS_NCP93 RM000001F7102NX.html
Fuel pump control circuit
YARIS_NCP93 RM000001F7001EX.html
Fuel pump
YARIS_NCP93 RM000000SL6038X.html
Fuel line
YARIS_NCP93 RM000001IQZ080X.html
Throttle with motor body assembly
YARIS_NCP93 RM000003VHP00GX.html
Intake system
YARIS_NCP93 RM000004VL8003X_01_0001.html
Purge VSV
YARIS_NCP93 RM000001RMW048X.html
PCV valve and hose
YARIS_NCP93 RM000001RN103YX.html
Air fuel ratio sensor
YARIS_NCP93 RM000000WC40LQX_09.html
Heated oxygen sensor
YARIS_NCP93 RM000000WBY0F2X_10.html
Mass air flow meter
YARIS_NCP93 RM000003VI100FX.html
Knock sensor
YARIS_NCP93 RM000003VIF00HX.html
External part malfunction (Increase in load: A/C system, automatic transaxle system, etc.)
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Hunting (Poor idling)
Throttle with motor body assembly
YARIS_NCP93 RM000003VHP00GX.html
Intake system
YARIS_NCP93 RM000004VL8003X_01_0001.html
PCV valve and hose
YARIS_NCP93 RM000001RN103YX.html
Air fuel ratio sensor
YARIS_NCP93 RM000000WC40LQX_09.html
Mass air flow meter
YARIS_NCP93 RM000003VI100FX.html
Hesitation/poor acceleration
Fuel pump control circuit
YARIS_NCP93 RM000001F7001EX.html
Fuel pump
YARIS_NCP93 RM000000SL6038X.html
Fuel line
YARIS_NCP93 RM000001IQZ080X.html
Spark plug
YARIS_NCP93 RM000001EFG05SX_01_0002.html
Ignition system
YARIS_NCP93 RM000001EFG05SX_01_0003.html
Fuel injector circuit
YARIS_NCP93 RM000000ZRM0CSX.html
ECM power source circuit
YARIS_NCP93 RM000001F7102NX.html
Mass air flow meter
YARIS_NCP93 RM000003VI100FX.html
Throttle with motor body assembly
YARIS_NCP93 RM000003VHP00GX.html
Intake system
YARIS_NCP93 RM000004VL8003X_01_0001.html
Valve timing
YARIS_NCP93 RM000000PDU0LTX_09_0005.html
Compression
YARIS_NCP93 RM000001DCF01PX_01_0008.html
Brake override system
YARIS_NCP93 RM000004G8F073X.html
Surging (Poor driveability)
Spark plug
YARIS_NCP93 RM000001EFG05SX_01_0002.html
Fuel pump control circuit
YARIS_NCP93 RM000001F7001EX.html
Fuel pump
YARIS_NCP93 RM000000SL6038X.html
Ignition system
YARIS_NCP93 RM000001EFG05SX_01_0003.html
Fuel injector circuit
YARIS_NCP93 RM000000ZRM0CSX.html
ECM power source circuit
YARIS_NCP93 RM000001F7102NX.html
Mass air flow meter
YARIS_NCP93 RM000003VI100FX.html
Variable Valve Timing (VVT) system
YARIS_NCP93 RM000000PDU0LTX_08.html
Compression
YARIS_NCP93 RM000001DCF01PX_01_0008.html
Engine stalls soon after starting
Fuel pump control circuit
YARIS_NCP93 RM000001F7001EX.html
Fuel pump
YARIS_NCP93 RM000000SL6038X.html
Spark plug
YARIS_NCP93 RM000001EFG05SX_01_0002.html
Ignition system
YARIS_NCP93 RM000001EFG05SX_01_0003.html
Fuel injector circuit
YARIS_NCP93 RM000000ZRM0CSX.html
ECM power source circuit
YARIS_NCP93 RM000001F7102NX.html
Mass air flow meter
YARIS_NCP93 RM000003VI100FX.html
Variable Valve Timing (VVT) system
YARIS_NCP93 RM000000PDU0LTX_08.html
Throttle with motor body assembly
YARIS_NCP93 RM000003VHP00GX.html
Intake system
YARIS_NCP93 RM000004VL8003X_01_0001.html
PCV valve and hose
YARIS_NCP93 RM000001RN103YX.html
Compression
YARIS_NCP93 RM000001DCF01PX_01_0008.html
Engine stalls only during A/C operation
A/C signal circuit
YARIS_NCP93 RM000000PM608AX.html
ECM
YARIS_NCP93 RM000000PDH0HSX.html
Unable/difficult to refuel
Fuel system (canister, fuel tank, etc.)
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