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
SEE MORE:
Parking Brake Switch Circuit
DESCRIPTION This circuit is from the parking brake switch assembly*1 or skid control ECU (Brake Actuator Assembly)*2 to the radio and display receiver assembly.
*1: w/o Electric Parking Brake System
*2: w/ Electric Parking Brake System
WIRING DIAGRAM w/o Electric Parking Brake System
w/
Linear Solenoid Power Supply System Malfunction (C120C)
DESCRIPTION This DTC is output by the 4WD ECU assembly if a malfunction occurs in the linear solenoid power supply system.
DTC No. Detection Item
DTC Detection Condition Trouble Area
C120C Linear Solenoid Power Supply System Malfunction
When the 4WD relay is on, t
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