Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

Performing Techstream's Active Test allows relay, VSV, actuator and other items to be operated without removing any parts. Performing the Active Test early in troubleshooting is one way to save time.

The Data List can be displayed during the Active Test.

Warm up the engine.
Turn the ignition switch OFF.
Connect Techstream to the DLC3.
Turn the ignition switch ON and turn the tester ON.
Enter the following menus: Powertrain / Engine and ECT / Active Test.

Follow the instructions on the tester and read the Active Test.

ACTIVE TEST

Tester Display	Test Part	Control Range	Diagnostic Note
Activate the Lock Up	[Test Details] Control shift solenoid DSL to set automatic transaxle to the lock-up condition [Vehicle Condition] Throttle valve opening angle: Less than 35 % Vehicle speed: 60 km/h (36 mph) or more	ON/OFF	Possible to check shift solenoid valve DSL operation

HINT:

This test can be conducted when the vehicle speed is 60 km/h (36 mph) or more.
This test can be conducted in the 3rd or 4th gear.

Lightly depress the accelerator pedal and check that the engine speed does not change abruptly.
HINT:
- When changing the accelerator pedal opening angle while driving, if the engine speed does not change, lock-up is ON.
- Slowly release the accelerator pedal in order to decelerate. (Do not fully release the pedal as that will close the throttle valve and lock-up may be turned OFF.)
  
  Fig 1: Accelerator Pedal Opening Angle Graph
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

CHECK OTHER DTC OUTPUT (IN ADDITION TO DTC P0741)

Connect Techstream to the DLC3.
Turn the ignition switch ON and turn the tester ON.
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

Read the DTCs using the tester.

Result

RESULT REFERENCE

Display (DTC output)	Proceed to
Only P0741 is output	A
P0741 and other DTCs are output	B

HINT:

If any other codes besides P0741 are output, perform troubleshooting for those DTCs first.

B: GO TO DTC CHART

A: go to next step

INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE DSL)

Disconnect the B27 wire connector.

Fig 2: Identifying Terminals Of B27 Wire Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance of the transmission wire.

Standard resistance

TERMINALS RESISTANCE REFERENCE

Tester Connection	Condition	Specified Condition
3 (DSL) - Body ground	20°C (68°F)	11 to 13 Ω

NG: Go to step 4

OK: go to next step

CHECK WIRE HARNESS (TRANSMISSION WIRE - ECM)

Disconnect the B30 ECM connector.

Fig 3: Identifying Terminals Of B30 ECM Connector

Measure the resistance of the wire harness side connector.

Standard resistance

TERMINALS RESISTANCE REFERENCE

Tester Connection	Condition	Specified Condition
B30-79 (DSL) - Body ground	20°C (68°F)	11 to 13 Ω

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: REPLACE ECM

INSPECT SHIFT SOLENOID VALVE DSL
1. Remove the shift solenoid valve DSL.
2. Measure the resistance of the solenoid valve.
  Standard resistance:
  
  11 to 13 Ω at 20°C (68°F)
3. Connect the battery's positive (+) lead to the terminal of the solenoid valve connector, and the negative (-) lead to the solenoid body. Then check that the valve moves and makes an operating noise.
  OK:
  
  Valve moves and makes operating noise.
NG: REPLACE SHIFT SOLENOID VALVE DSL

OK: go to next step
CHECK TRANSMISSION WIRE
OK:

The connectors and pins are securely installed. There is no open or short on the wire harness.

NG: REPAIR OR REPLACE TRANSMISSION WIRE

OK: go to next step
INSPECT TRANSMISSION VALVE BODY ASSEMBLY
1. Check the transmission valve body assembly.
  OK:
  
  There are no foreign objects on each valve.
NG: REPAIR OR REPLACE TRANSMISSION VALVE BODY ASSEMBLY

OK: go to next step
INSPECT TORQUE CONVERTER CLUTCH ASSEMBLY
1. Check the torque converter clutch assembly (see TORQUE CONVERTER AND DRIVE PLATE ).
  OK:
  
  The torque converter clutch operates normally.
NG: REPLACE TORQUE CONVERTER CLUTCH ASSEMBLY

OK: REPAIR AUTOMATIC TRANSAXLE ASSEMBLY