Toyota Yaris: G16e-gts (fuel) / Fuel Pump
INSTALLATION CAUTION / NOTICE / HINT NOTICE: This procedure includes the installation of small-head bolts. Refer to Small-Head Bolts of Basic Repair Hint to identify the small-head bolts...
COMPONENTS ILLUSTRATION
*1 CHARCOAL CANISTER OUTLET HOSE *2 FUEL PUMP GAUGE RETAINER *3 FUEL SUCTION WITH PUMP AND GAUGE TUBE ASSEMBLY *4 FUEL TANK EVAP TUBE SUB-ASSEMBLY *5 FUEL TANK MAIN TUBE SUB-ASSEMBLY *6 NO...
Other information:
DESCRIPTION Problem Symptom Suspected Area Trouble Area
Engine speed fluctuation due to abnormal combustion
Idle speed too low or high
Strong engine vibration due to above symptoms
Ignition malfunction
Deviation in air fuel ratio (Excessive or insufficient intake air volume or fuel supply)
Insufficient compression
Changes in load from another system
Ignition system
Spark plug
Ignition coil assembly
Fuel system
Direct fuel injector assembly
Port fuel injector assembly
Fuel pump assembly (for high pressure side)
Fuel pump (for low pressure side)
Fuel pump control circuit
Fuel line
Purge VSV system
Fuel quality (existence of foreign matter, degradation)
Intake and exhaust systems
Mass air flow meter sub-assembly
Intake system
(Air leaks or deposit accumulation)
Throttle body with motor assembly
Air fuel ratio sensor (sensor 1)
Air fuel ratio sensor (sensor 2)
Cam timing oil control solenoid assembly
Variable Valve Timing system (VVT system)
Other control systems
ECM
Wire harness or connector
Knock control sensor
Engine coolant temperature sensor
Engine
Water control valve
Engine assembly
Engine mount
High load from another system
Air conditioning system
Power steering system
Electrical load signal system
SYMPTOM AND CAUSE OF SYSTEM MALFUNCTION HINT: The following are descriptions of the characteristics of each system malfunction...
TERMINALS OF ECU TERMINALS OF ECU
*a Component without harness connected (Skid Control ECU [Brake Actuator Assembly]) - - Terminal No. (Symbol) Terminal Description 1 (GND2) Pump motor ground 2 - (Not used) 3 - (Not used) 4 - (Not used) 5 (STP2) Stop light switch assembly input 6 - (Not used) 7 - (Not used) 8 - (Not used) 9 - (Not used) 10 (CANL) CAN communication line L 11 - (Not used) 12 (IGR) ECU power supply input 13 (BM) Motor relay power supply 14 (SP1) Speed signal output for speedometer 15 (RR-) Rear wheel speed RH (-) signal input 16 (RR+) Rear wheel speed RH (+) power supply output 17 (FL-) Front wheel speed LH (-) signal input 18 (FL+) Front wheel speed LH (+) power supply output 19 - (Not used) 20 - (Not used) 21 - (Not used) 22 (CANH) CAN communication line H 23 - (Not used) 24 - (Not used) 25 (GND1) Skid control ECU (brake actuator assembly) ground 26 (STPO) Stop light switch assembly output 27 - (Not used) 28 (RL-) Rear wheel speed LH (-) signal input 29 (RL+) Rear wheel speed LH (+) power supply output 30 (FR-) Front wheel speed RH (-) signal input 31 (FR+) Front wheel speed RH (+) power supply output 32 - (Not used) 33 (CSW) VSC OFF switch (combination switch assembly) input 34 - (Not used) 35 (STP) Stop light switch assembly input 36 (CA2H) CAN communication line H 37 (CA2L) CAN communication line L 38 (+BS) Solenoid relay power supply TERMINAL INSPECTION (a) Disconnect the A108 connector and measure the voltage or resistance on the wire harness side...
Categories
Stop the vehicle completely.
Manual transaxle:
Shift into neutral and set the parking brake.
Automatic transaxle:
Shift the selector lever to the P position and set the parking brake.
Press the push button start to turn off the engine. The ignition position is
off.
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