Lexus ES manuals

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

Auxiliary battery power supply

Power 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

Power switch on (IG), OPEN switch on

Below 1 V

P22-10 (OPN) - P22-2 (E)

W - W-B

Sliding roof motor open

Power switch on (IG), OPEN switch off

11 to 14 V

P22-8 (CLS) - P22-2 (E)

SB - W-B

Sliding roof motor close

Power switch on (IG), CLOSE switch on

Below 1 V

P22-8 (CLS) - P22-2 (E)

SB - W-B

Sliding roof motor close

Power switch on (IG), CLOSE switch off

11 to 14 V

P22-5 (UP) - P22-2 (E)

R - W-B

Sliding roof motor up

Power switch on (IG), UP switch on

Below 1 V

P22-5 (UP) - P22-2 (E)

R - W-B

Sliding roof motor up

Power switch on (IG), UP switch off

11 to 14 V

P22-9 (DWN) - P22-2 (E)

LG - W-B

Sliding roof motor down

Power switch on (IG), DOWN switch on

Below 1 V

P22-9 (DWN) - P22-2 (E)

LG - W-B

Sliding roof motor down

Power switch on (IG), DOWN switch off

11 to 14 V

CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

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