Toyota Camry (XV70): System Description
SYSTEM DESCRIPTION
SYSTEM DESCRIPTION
(a) The Electronic Controlled Automatic Transaxle (ECT) is an automatic transaxle that electronically controls shift timing using the ECM. The ECM detects electrical signals that indicate engine and driving conditions, and controls shift points based on driver habits and road conditions.
Shift shock is reduced by controlling the engine and transaxle simultaneously.
In addition, the ECT has the following features:
- Diagnostic function.
- Fail-safe function when a malfunction occurs.
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How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
The ECM is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure to check that there are no malfunctions in the CAN commu
Road Test
ROAD TEST PROBLEM SYMPTOM CONFIRMATION (a) Based on the result of the customer problem analysis, try to reproduce the symptoms. If the problem is that the transaxle does not shift up, shift down, or t
Mechanical System Tests
MECHANICAL SYSTEM TESTS STALL SPEED TEST
CAUTION:
Do not perform a stall test if there are any people or objects near the vehicle.
The vehicle could begin moving suddenly, resulting in a
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Parts Location
PARTS LOCATION ILLUSTRATION
*1 FRONT ENGINE MOUNTING INSULATOR
*2 REAR ENGINE MOUNTING INSULATOR
*3 CANISTER
*4 FUEL PUMP (for Low Pressure Side)
*5 MASS AIR FLOW METER SUB-ASSEMBLY
*6 PARK / NEUTRAL POSITION SWITCH ASSEMBLY
*7 VACUUM
Terminals Of Ecu
TERMINALS OF ECU CLEARANCE WARNING ECU ASSEMBLY
(a) Disconnect the R39 clearance warning ECU assembly connector.
(b) Measure the voltage and resistance on the wire harness side connector according to the value(s) in the table below.
Terminal No. (Symbol) Terminal Description
Condit
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