Toyota 4Runner: Data List / Active Test

Toyota 4Runner Service Manual / Steering / Power Assist Systems / Power Steering System / Data List / Active Test

DATA LIST / ACTIVE TEST

1. DATA LIST

HINT:

Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

NOTICE:

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

(a) Turn the ignition switch off.

(b) Connect the Techstream to the DLC3.

(d) Turn the Techstream on.

(e) Enter the following menus: Chassis / PPS / Data List.

(f) According to the display on the Techstream, read the Data List.

PPS

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Steering Angle Velocity	Steering angle speed/ Min.: -32768 deg/s Max.: 32767 deg/s	Value changes in proportion to steering effort	The engine is running and the steering wheel is being turned.
Meter Vehicle Velocity	Vehicle speed from meter/ Min.: 0.00 km/h (0.00 mph) Max.: 300.00 km/h (186.41 mph)	0 km/h (0 mph)	The vehicle is stopped.
Meter Vehicle Velocity		No large fluctuation	The vehicle is driven at a constant speed.
Engine Revolution	Engine speed/ Min.: 0 rpm Max.: 12800 rpm	No large fluctuation	The engine is running at a constant speed.
Steering Angle	Steering angle/ Min.: -2048.0 deg Max.: 2047.0 deg	Left turn: Increases Right turn: Decreases	The engine is running and the steering wheel is being turned.
Solenoid Current	Solenoid Current/ Min.: 0 mA Max.: 1000 mA	200 to 950 mA	The engine is running and the steering wheel is being turned.
IG Power Supply	ECU power source voltage/ Min.: 0.0 V Max.: 25.5 V	11 to 14 V	The ignition switch is ON.

Fail-safe Chart

FAIL-SAFE CHART If a problem occurs in the power steering system, the power steering warning light in the combination meter comes on and the power steering assist is stopped, locked at a particul ...

Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART HINT: If a trouble code is output during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "See page" bel ...

Other materials about Toyota 4Runner:

Customize Parameters
CUSTOMIZE PARAMETERS 1. CUSTOMIZING FUNCTION WITH TECHSTREAM NOTICE: When the customer requests a change in a function, first make sure that the function can be customized. Be sure to make a note of the current settings before customizing. ...

Removal
REMOVAL PROCEDURE 1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system. NOTICE: When disconnecting the cable, some systems ne ...