Toyota Corolla Cross: System Diagram
SYSTEM DIAGRAM
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CAUTION / NOTICE / HINT HINT: *: Use the GTS. PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
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2.
CUSTOMER PROBLEM ANALYSIS
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CHECK FOR INTERMITTENT PROBLEMS HINT: Inspect the vehicle ECM using check mode. Intermittent problems are easier to detect with the GTS when the ECM is in check mode. In check mode, the ECM uses 1 tri
CAUTION / NOTICE / HINT When a malfunction is not confirmed by the DTC check, troubleshooting should be carried out for all circuits considered to be possible causes of the problem. In many cases, by
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DESCRIPTION The fuel pump control ECU performs PWM (Pulse Width Modulation) control to control the fuel pump (for low pressure side) speed steplessly over a wide range.
The fuel pump control ECU controls the speed of the fuel pump (for low pressure side) by switching the current of FPU, FPV and FP
PARTS LOCATION ILLUSTRATION
*1 AIR CONDITIONER PRESSURE SENSOR
*2 ECM
*3 POWER STEERING ECU ASSEMBLY
*4 NO. 1 ENGINE ROOM RELAY BLOCK ASSEMBLY
- ECU-IGP NO. 3 FUSE - HTR FUSE
*5 COMPRESSOR WITH PULLEY ASSEMBLY
*6 THERMISTOR ASSEMBLY
How To Proceed With Troubleshooting
Fuel Pump "A" Control Circuit Short to Battery (P062712)
