TROUBLE DIAGNOSES - Self-diagnosis (Cont'd)
AT-34flowchartA/T (Automatic Transmission) specific page. Self-diagnosis via O.D. OFF indicator lamp flicker patterns.
Self-diagnosis (Cont'd)
Self-diagnosis O.D. OFF indicator lamp patterns and damaged circuits
8th judgement flicker is longer than others. [SAT731B]
Damaged circuitFluid temperature sensor is disconnected or A/T control unit power source circuit is damaged. Go to FLUID TEMPERATURE SENSOR CIRCUIT AND A/T CONTROL UNIT POWER SOURCE CIRCUIT CHECK. [SAT143B]
9th judgement flicker is longer than others. [SAT733B]
Damaged circuitEngine revolution signal circuit is short-circuited or disconnected. Go to ENGINE REVOLUTION SIGNAL CIRCUIT CHECK. [SAT624B]
10th judgement flicker is longer than others. [SAT732B]
Damaged circuitLine pressure solenoid circuit is short-circuited or disconnected. Go to LINE PRESSURE SOLENOID CIRCUIT CHECK. [SAT776A]
Flickers as shown below (t4 = 1.0 second). [SAT734B]
Damaged circuitBattery power is low. Battery has been disconnected for a long time. Battery is connected conversely. (When reconnecting A/T control unit connectors. — This is not a problem.)
8th Judgement - Fluid Temperature Sensor Circuit and A/T Control Unit Power Source Circuit
Components (5)
Ignition switchFuseFluid temperature sensorTerminal cord assemblyA/T control unit
9th Judgement - Engine Revolution Signal Circuit
10th Judgement - Line Pressure Solenoid Circuit
| Specification | Value |
|---|---|
| t4 (flicker timing for battery condition pattern)Low battery / battery disconnected / battery reversed polarity pattern | 1.0second |
t4 (flicker timing for battery condition pattern)Low battery / battery disconnected / battery reversed polarity pattern
1.0second
NOTE
Battery power is low. Battery has been disconnected for a long time. Battery is connected conversely. (When reconnecting A/T control unit connectors. — This is not a problem.)
See also
FLUID TEMPERATURE SENSOR CIRCUIT AND A/T CONTROL UNIT POWER SOURCE CIRCUIT CHECK · ENGINE REVOLUTION SIGNAL CIRCUIT CHECK · LINE PRESSURE SOLENOID CIRCUIT CHECK · SAT143B · SAT624B · SAT776A · SAT731B · SAT733B · SAT732B · SAT734B