Lexus ES: Data List / Active Test
DATA LIST / ACTIVE TEST
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 engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Air Conditioner / Active Test.
(e) Perform the Active Test according to the display on the Techstream.
Body Electrical > Air Conditioner > Active Test| Tester Display | Measurement Item | Control Range | Diagnostic Note |
|---|---|---|---|
| Defogger Relay (Rear) | Mirror heater operation | OFF or ON | - |
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Mirror Heater does not Operate with Rear Defogger Switch
DESCRIPTION When the mirror heater switch (rear window defogger switch) on the air conditioning control assembly is pressed, the operation signal is sent to the air conditioning amplifier assembly via
Precaution
PRECAUTION PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL NOTICE: When disconnecting the cable from the negative (-) auxiliary battery terminal, initialize the following s
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Dtc Check / Clear
DTC CHECK / CLEAR CHECK FOR DTC (MAIN BODY) (a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Main Body / Trouble Codes. Body Electrical > Main Body > Trouble Codes (e) Check for DTCs. CHECK
Door Mirror ECU LH Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area Door Mirror ECU LH Communication Stop Mode Any of the following conditions are met:
Communication stop for "Front Door LH/L-Mirror (FL-Door/L-Mirror)" is indicated on the "Communication Bus Check" screen of the Techstream.
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