Lexus ES: Terminals Of Ecu
TERMINALS OF ECU
CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY
| *A | w/o Seat Heater | *B | w/ Seat Heater |
(a) Disconnect the G39 air conditioning amplifier assembly connector.
(b) Measure the voltage and resistance 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 |
|---|---|---|---|---|
| G39-2 (IG+) - G39-4 (GND) | R - W-B | Power source (IG) | Engine switch on (IG) | 11 to 14 V |
| G39-2 (IG+) - G39-4 (GND) | R - W-B | Power source (IG) | Engine switch off | Below 1 V |
| G39-1 (B) - G39-4 (GND) | B - W-B | Battery power supply | Always | 11 to 14 V |
| G39-4 (GND) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
(c) Reconnect the G39 air conditioning amplifier 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 |
|---|---|---|---|---|
| G39-17 (FDEF) - G39-4 (GND) | GR - W-B | Wiper Deicer signal | Engine switch on (IG), Front wiper deicer switch off | 11 to 14 V |
| G39-17 (FDEF) - G39-4 (GND) | GR - W-B | Wiper Deicer signal | Engine switch on (IG), Front wiper deicer switch on | Below 2.2 V |
READ NEXT:
Diagnosis System
DIAGNOSIS SYSTEM CHECK DLC3 (a) Check the DLC3. Click here INSPECT BATTERY VOLTAGE (a) Measure the battery voltage. Standard Voltage: 11 to 14 V If the voltage is below 11 V, recharge or replace th
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 func
Windshield Deicer does not Operate
DESCRIPTION When the front wiper deicer switch is operated, the operation signal is transmitted to the air conditioning amplifier assembly directly. When the air conditioning amplifier assembly receiv
SEE MORE:
Radio Receiver Power Source Circuit
DESCRIPTION This is the power source circuit to operate the radio receiver assembly. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the following procedure. PROCEDURE 1. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBL
Installation
INSTALLATION PROCEDURE 1. INSTALL CLEARANCE WARNING ECU ASSEMBLY (a) Engage the claw to install the clearance warning ECU assembly as shown in the illustration. Install in this Direction 2. INSTALL ECU INTEGRATION BOX RH Click here 3. INSTALL GLOVE COMPARTMENT DOOR ASSEMBLY Click here
