Toyota 4Runner manuals

Toyota 4Runner: Data List / Active Test

DATA LIST / ACTIVE TEST

1. ACTIVE TEST

HINT:

Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Air Conditioner / Active Test.

(e) According to the display on the Techstream, perform the Active Test.

Air Conditioner

Tester Display

Test Part

Control Range

Diagnostic Note

Defogger Relay (Rear)

DEF relay operation

OFF/ON

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Terminals Of Ecu
TERMINALS OF ECU 1. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (a) Disconnect the F42 air conditioning amplifier connector. (b) Measure the voltage and resistance according to the value(s) in the ...

Rear Window Defogger System does not Operate
DESCRIPTION When the back door power window is fully closed and the rear window defogger switch is turned on, a rear window defogger activation request signal is sent via the LIN communication li ...

Other materials about Toyota 4Runner:

Air Mix Damper Control Servo Motor Circuit (Passenger Side) (B1441/41)
DESCRIPTION The damper servo sub-assembly (front passenger side air mix damper servo) sends pulse signals to inform the No. 1 air conditioning amplifier assembly of the damper position. The No. 1 air conditioning amplifier assembly activates the motor (no ...

Lost Communication with A/C ECU (U0164)
DESCRIPTION DTC Code DTC Detection Condition Trouble Area U0164 There is no communication from the air conditioning amplifier assembly. Power source or inside air conditioning ...

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