Toyota RAV4 (XA40) 2013-2018 Service Manual: Assist map number un-writing
Description
The power steering ecu outputs this dtc when it determines that the assist map is not written in the ecu.
Hint:
The assist map data is written in the power steering ecu to control assisting power.
The assist map has 3 types. Select an assist map according to the vehicle
country information that is
recorded in the ecu.
Inspection procedure
- Perform assist map writing
- Turn the ignition switch on.
- Connect the intelligent tester (with can vim) to the dlc3.
Hint:
At this time, check that the p/s warning light is illuminated.
- Select signal check, and change to test mode.
- Wait for 3 seconds.
- Check p/s warning light
- Check the p/s warning light.
Result
Hint:
If the p/s warning light blinks at 0.25 Second intervals, the assist map adjustment has completed normally.
- Check dtc
- Check for dtc.
Result
Hint:
If dtc c1581/26 is output, turn the ignition switch off. Enter test mode again. If the dtc is output 3 times in a row, replace the power steering ecu.
Replace power steering ecu
Power supply relay failure
Description
If the power steering ecu detects these dtcs, it shuts off the motor relay
circuit (built into the power
steering ecu) and stops power assist.
Inspection procedure
Reconfirm ...
Control module communication bus off
Description
The power steering ecu receives signals from the ecm and the skid control ecu
via the can
communication system.
Hint:
When 2 or more dtcs starting with [u] are output simul ...
Other materials:
Throttle actuator control throttle body range / performance
Description
The electronic throttle control system (etcs) is composed of the throttle
actuator, throttle position (tp)
sensor, accelerator pedal position (app) sensor, and ecm. The ecm operates the
throttle actuator to
regulate the throttle valve in response to driver inputs. The tp senso ...
Transmission wire
Components
Removal
Disconnect cable from negative battery
terminal
Caution:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensioner activation.
Remove no. 1 Engine under cover
Drain automati ...
Diaphragm oil seal
Components
Removal
Drain differential oil
Using a 10 mm socket hexagon wrench, remove the
rear differential drain plug and gasket, and drain the
oil.
Install a new gasket to the rear differential drain
plug.
Using a 10 mm socket hexagon wrench, install the
rear differe ...
