P0741

DTC P0741

DTC Detecting Condition and Trouble Area






Circuit Diagram










DTC Confirmation Procedure

WARNING:

If you do not select a suitable route and take proper precautions when performing a road test, an accident can occur.

- Select a level road with no traffic to minimize the risk of accident.
- Perform the test extremely carefully.
- Perform the road test using 2 persons, a driver and an assistant.

NOTE:

- If other DTC than P0741 is newly detected during this "DTC Confirmation Procedure", troubleshoot the newly detected DTC in first.
- Confirm that the following conditions are met in this procedure.

- Battery voltage > 10.5 V
- CVT fluid temperature at engine start ≥ 10 °C (50 °F)

1) Drive vehicle at more than 40 km/h (25 mile/h) for 40 sec.
2) Stop vehicle.
3) Push engine switch to change ignition mode to "OFF", and leave ignition mode in "OFF" for 10 sec.
4) Push engine switch to change ignition mode to "ON".
5) Repeat Step 1) through 2) twice.

DTC Troubleshooting

1.
Was "CVT System Check" performed?
YES -
Go to Step 2.
NO -
Go to CVT System Check CVT System Check.

2. DTC check of ECM

Check DTC of ECM. DTC Check

Is there any DTC(s)?
YES -
Go to troubleshooting for applicable DTC.
NO -
Go to Step 3.

3. Primary pulley speed sensor and its circuit check

Check primary pulley speed sensor and its circuit according to Step 2 through 4 of P0717 DTC P0717.

Are they in good condition?
YES -
Go to Step 4.
NO -
Repair or replace defective parts.

4. Lock-up / select switching solenoid valve and its circuits check

Check lock-up / select switching solenoid valve and its circuits according to Step 2 through 3 of P1810 DTC P1810.

Are they in good condition?
YES -
Go to Step 5.
NO -
Repair or replace defective parts.

5. TCC solenoid valve drive circuit check

Confirm that ignition mode of keyless push start system is in "OFF".
Disconnect "C142", "E19" and "E20" connectors.
Check for proper terminal connection to "C142", "E19" and "E20" connectors.
If connections are OK, check the following points.
- Resistance of "A3" circuit: less than 1 ohms
- Resistance of "A3" circuit between "C142" connector and ground: infinity
- Resistance between "A3" circuit terminal and each terminal at "C142" connector: infinity
- Voltage of "A3" circuit: 0 - 1 V (with ignition mode of keyless push start system in "ON")

Are they in good condition?
YES -
Go to Step 6.
NO -
Repair or replace defective wire harness.

6. TCC solenoid valve check

Check resistance of TCC solenoid valve. Testing and Inspection

Is it in good condition?
YES -
Substitute a known-good TCM and recheck DTC. Service and Repair
NO -
Replace TCC solenoid valve (valve body assembly). Service and Repair