Toyota Camry Manual page 114

AX1–41
AUTOMATIC TRANSAXLE – TROUBLESHOOTING
11. 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.
12. CIRCUIT INSPECTION
Perform diagnosis of each circuit in accordance with the inspection order confirmed in steps 6
and 11. 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,
brake signal check or kick–down signal check (in test mode), be performed. These are diagnosis
functions used to check if signals are being input correctly to the ECM.
13. PART INSPECTION
Check the individual parts of the mechanical system and hydraulic system in the order of the
numbers indicated in the Matrix Chart.
14. REPAIRS
After the cause of the problem is located, perform repairs by following the inspection and
replacement procedures in this manual or'94 Al 40E AUTOMATIC TRANSAXLE Repair Manual.
15. CONFIRMATION TEST
After completing repairs, confirm not only that the malfunction is eliminated, but also conduct a
test drive, etc., to make sure the entire electronically controlled transaxle system is operating
correctly.