Lexus ES: Terminals Of Ecu
TERMINALS OF ECU
CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)
(a) Disconnect the P22 sliding roof ECU (sliding roof drive gear sub-assembly) connector.
(b) Measure the resistance and voltage according to the value(s) in the table below.
HINT:
Measure the values on the wire harness side with the connector disconnected.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| P22-1 (B) - P22-2 (E) | B - W-B | Battery power supply | Engine switch off | 11 to 14 V |
| P22-2 (E) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
(c) Reconnect the P22 sliding roof ECU (sliding roof drive gear sub-assembly) connector.
(d) Measure the voltage according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| P22-10 (OPN) - P22-2 (E) | W - W-B | Sliding roof motor open | Engine switch on (IG), OPEN switch on | Below 1 V |
| P22-10 (OPN) - P22-2 (E) | W - W-B | Sliding roof motor open | Engine switch on (IG), OPEN switch off | 11 to 14 V |
| P22-8 (CLS) - P22-2 (E) | SB - W-B | Sliding roof motor close | Engine switch on (IG), CLOSE switch on | Below 1 V |
| P22-8 (CLS) - P22-2 (E) | SB - W-B | Sliding roof motor close | Engine switch on (IG), CLOSE switch off | 11 to 14 V |
| P22-5 (UP) - P22-2 (E) | R - W-B | Sliding roof motor up | Engine switch on (IG), UP switch on | Below 1 V |
| P22-5 (UP) - P22-2 (E) | R - W-B | Sliding roof motor up | Engine switch on (IG), UP switch off | 11 to 14 V |
| P22-9 (DWN) - P22-2 (E) | LG - W-B | Sliding roof motor down | Engine switch on (IG), DOWN switch on | Below 1 V |
| P22-9 (DWN) - P22-2 (E) | LG - W-B | Sliding roof motor down | Engine switch on (IG), DOWN switch off | 11 to 14 V |
CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
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Diagnosis System
DIAGNOSIS SYSTEM DESCRIPTION (a) Sliding roof system data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). When the system seems to be malfunctioning,
Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTC (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 / Sliding Roof / Trou
Data List / Active Test
DATA LIST / ACTIVE TEST 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. Th
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Installation
INSTALLATION CAUTION / NOTICE / HINT NOTICE: After installing the luggage door hinge torsion bar, use your hand to open and close the luggage door. Make sure the luggage door can open and close smoothly. PROCEDURE 1. INSTALL LUGGAGE COMPARTMENT DOOR TORSION BAR SUPPORT (a) Install a new luggage comp
Tilt and Telescopic ECU Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area Tilt and Telescopic ECU Communication Stop Mode Any of the following conditions are met:
Communication stop for "Multiplex Tilt and Telescopic" is indicated on the "Communication Bus Check" screen of the Techstream.
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Comm
