Toyota Camry Manual page 238

AX2–51
AUTOMATIC TRANSAXLE – TROUBLESHOOTING
completed. If troubleshooting is attempted only by following the malfunction code stored in the
memory is output, errors could be made in the diagnosis.
DIAGNOSTIC TROUBLE CODE CHART
If a trouble code is confirmed in the diagnostic trouble code check, proceed to the inspection
procedure indicated by the matrix chart for each diagnostic trouble code.
PRELIMINARY CHECK
Carry out a preliminary check of the transmission oil level, throttle cable adjustment, etc..
MECHANICAL SYSTEM TEST
(Stall Test, Time Leg Test, Line Pressure Test)
If the malfunction is found in the stall test, time lag test or line pressure test, check the parts
indicated in the respective tests.
MANUAL SHIFTING TEST
If the results of the manual driving test are NG, it is likely that the trouble is in the mechanical
system or hydraulic system. Proceed to Part 2 (Mechanical System) under the Matrix Chart of
Problem Symptoms.
MATRIX CHART OF PROBLEM SYMPTOMS
If the normal code is confirmed in the diagnostic trouble code check, perform inspection
according to the inspection order in the matrix chart of problem symptoms. Perform diagnosis of
each circuit or part in the order shown in the Matrix Chart. The Matrix Chart contains 3 chapters,
Electronically Controlled Circuits in Chapter 1, On–vehicle Inspection in Chapter 2 and Off–
vehicle Inspection in Chapter 3. If all the circuits indicated in Chapter 1 are normal, proceed to
Chapter 2. If all the parts indicated in Chapter 2 are normal, proceed to Chapter 3. If all the circuits
and parts in Chapter 1 – Chapter 3 are normal and the trouble still occurs, check and replace the
ECM.
CIRCUIT INSPECTION
Perform diagnosis of each circuit in accordance with the inspection order confirmed in (9) and (13).
Judge whether the cause of the problem is in the sensor, actuators, wire harness and connectors,
or the ECM. In some cases, the Flow Chart instructs that a throttle signal check or brake signal
check be performed. These are diagnosis functions used to check if signals are being input
correctly to the ECM.
PARTS INSPECTION
Check the individual parts of the mechanical system and hydraulic system in the order of the
numbers indicated in the Matrix Chart.
REPAIRS
After the cause of the problem is located, perform repairs by following the inspection and
replacement procedures in this manual or'94 A541 E Automatic Transaxle Repair Manual.(for'94
CAM RY)
CONFIRMATION TEST
After completing adjustment or repairs, confirm not only that the malfunction is eliminated, but
also conduct a test drive, etc., to make sure the entire Engine Control System is operating
normally.