TROUBLE DIAGNOSES — Self-diagnosis (Cont'd) LINE PRESSURE SOLENOID CIRCUIT CHECK
AT-44flowchartA/T (Automatic Transmission) only. Line pressure solenoid circuit check procedure.
Self-diagnosis (Cont'd) LINE PRESSURE SOLENOID CIRCUIT CHECK
Line Pressure Solenoid Circuit Overview
LINE PRESSURE SOLENOID CIRCUIT CHECK
1
CHECK GROUND CIRCUIT.
1. [Ignition switch OFF]
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal 34 and ground.
Resistance: 2.5 - 5Ω
N.G.
1. Remove control valve assembly. — Refer to 'ON-VEHICLE SERVICE'.
1. Remove control valve assembly. — Refer to 'ON-VEHICLE SERVICE'.
2. Check the following items.
• Line pressure solenoid — Refer to 'Electrical Components Inspection'.
• Harness continuity of terminal cord assembly
O.K.
2
CHECK POWER SOURCE CIRCUIT.
1. [Ignition switch OFF]
2. Disconnect A/T control unit 16-pin connector.
3. Check resistance between terminal 34 and A/T control unit terminal 33.
Resistance: 11.2 - 12.8Ω
N.G.
Check the following items.
Check the following items.
• Dropping resistor — Refer to 'Electrical Components Inspection'.
• Harness continuity between A/T control unit 33 and terminal cord assembly (Main harness)
O.K.
3
CHECK POWER SOURCE CIRCUIT
1. [Ignition switch OFF]
2. Check resistance between terminal 34 and A/T control unit terminal 34.
Resistance: Approximately 0Ω
3. Reinstall any part removed.
N.G.
Repair or replace harness between A/T control unit 34 and terminal cord assembly.
O.K.
4
Perform self-diagnosis after driving for a while.
N.G.
1. Perform A/T control unit input/output signal inspection.
1. Perform A/T control unit input/output signal inspection.
2. If N.G., recheck A/T control unit pin terminals for damage or connection of A/T control unit harness connector.
O.K.
INSPECTION END
| Specification | Value |
|---|---|
| Ground circuit resistance (terminal 34 to ground)Terminal cord assembly connector disconnected in engine compartment, ignition OFF | 2.5 - 5Ω |
| Power source circuit resistance (terminal 34 to A/T control unit terminal 33)A/T control unit 16-pin connector disconnected, ignition OFF | 11.2 - 12.8Ω |
| Power source circuit resistance (terminal 34 to A/T control unit terminal 34)Ignition OFF | Approximately 0Ω |
Ground circuit resistance (terminal 34 to ground)Terminal cord assembly connector disconnected in engine compartment, ignition OFF
2.5 - 5Ω
Power source circuit resistance (terminal 34 to A/T control unit terminal 33)A/T control unit 16-pin connector disconnected, ignition OFF
11.2 - 12.8Ω
Power source circuit resistance (terminal 34 to A/T control unit terminal 34)Ignition OFF
Approximately 0Ω
See also
ON-VEHICLE SERVICE · Electrical Components Inspection