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Other System: Overview Lexus ES XV40

Communication Devices 16 illustrations ~1487 words

DESCRIPTION

The clock assembly uses this circuit to communicate with the A/C amplifier via the direct line. The clock assembly uses this circuit to receive auto dimmer signals. When the clock assembly receives an auto dimmer signal from the main body ECU through the A/C amplifier via the direct line, the clock assembly causes the clock display to be dimmed.

HINT

If the automatic light control sensor has a malfunction, DTC B1244 is output.

Clock Display Circuit - Wiring Diagram. Scheme 162

Scheme 162: Clock Display Circuit - Wiring Diagram
Scheme 162: Clock Display Circuit - Wiring Diagram

Scheme 163

Scheme 163
Scheme 163

Scheme 164

Scheme 164
Scheme 164
  1. CHECK CAN COMMUNICATION SYSTEM Check if CAN communication DTC is output (See «DIAGNOSIS SYSTEM»(ref-283107-S41788043622008041700000) ). Result RESULT CHART Result Proceed to CAN communication DTC is not output A CAN communication DTC is output B B: GO TO «CAN COMMUNICATION SYSTEM»(ref-283107-S25736989962008041700000) A: Go to Next Step
  2. CHECK AIR CONDITIONING SYSTEM Check the heater control panel illumination. OK: The heater control panel illumination operates normally. NG: GO TO «AIR CONDITIONING SYSTEM»(ref-283108-S12578108312008041700000) OK: Go to Next Step
  3. PERFORM ACTIVE TEST BY INTELLIGENT TESTER Connect the intelligent tester to the DLC3. Engine switch on (IG). Turn the tester ON. Light control switch TAIL/HEAD. Enter the following menus: DIAGNOSIS / BODY / MAIN BODY / ACTIVE TEST. Check the clock illumination. MAIN BODY: ITEM TEST DETAIL Item Test Details Diagnostic Note DIMMER SIG Auto dimmer signal ON/OFF - OK: The clock illumination is dimmed when the DIMMER SIG is ON. HINT: Refer to the sensitivity setting in the customization table of the automatic light control system (See «CUSTOMIZE PARAMETERS»(ref-283105-S33907569182008041700000) ). NG: Go to step 4 OK: REPLACE MAIN BODY ECU
  4. CHECK HARNESS AND CONNECTOR (ILL+) Disconnect the E3 (*1)/E18 (*2) connector. Measure the voltage according to the value(s) in the table below. Standard voltage TESTER CONNECTION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition E3-11 (ILL+) ( (1) ) - Body ground Engine switch on (IG), light control switch TAIL/HEAD 10 to 14 V E18-6 (ILL+) ( (2) ) - Body ground Engine switch on (IG), light control switch TAIL/HEAD 10 to 14 V (1) without Navigation System (2) with Navigation System NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (Scheme 163): Identifying Clock Assembly Wire Harness Connector E3 OK: Go to Next Step
  5. CHECK HARNESS AND CONNECTOR (CLOCK ASSEMBLY - COMBINATION METER) Disconnect the E19 connector. Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONNECTION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition E3-17 (ILL-) ( (1) ) - E19-11 (ILL-) Always Below 1 ohms E18-7 (ILL-) ( (2) ) - E19-11 (ILL-) Always Below 1 ohms E19-11 (ILL-) - Body ground Always 10 kohms or higher (1) without Navigation System (2) with Navigation System NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (Scheme 164): Identifying Clock Assembly E19 Connector OK: Go to Next Step
  6. INSPECT CLOCK ASSEMBLY Reconnect the E19 connector. Check the waveform shown in the illustration below. OK TESTER CONNECTION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition E19-11 (ILL-) - Body ground Turn the engine switch on (IG), light control switch TAIL/ HEAD Pulse generation (See 1 waveform) see scheme 18: Identifying Combination Meter Assembly E19 Connector Waveform (Reference): Using oscilloscope: ITEM CONDITION CHART Item Condition Tool setting 2V/DIV, 1 ms./DIV Vehicle condition Turn the engine switch on (IG), light control switch TAIL/HEAD see scheme 19: Identifying Signal Waveform HINT: Duty ratio changes as the illumination becomes darker (the period "A" shown in the illustration becomes longer). Result RESULT CHART Result Proceed to NG (without Navigation System) A NG (with Navigation System) B OK C HINT: The whole heater control panel/multi-display should be replaced if the clock assembly has a malfunction because this part is not independently supplied. A: REPLACE HEATER CONTROL PANEL B: REPLACE MULTI-DISPLAY C: REPLACE COMBINATION METER ASSEMBLY

This circuit is the power source for the clock assembly. This circuit provides two types of power sources; one is a constant power source mainly used as a backup power source, and the other is a power source mainly used for signal transmission. The constant power source is mainly used as a backup power source of the clock assembly, however, it is also used for communication.

HINT

If the clock assembly displays "1:00" when the engine switch is turned off, then on (IG) again, the +B (*1)/B (*2) terminal has a malfunction.

The maximum clock assembly margin of error is -4 to 4 seconds per day when the temperature is between -20°C (-4°F) and 60°C (140°F).

Power Source Circuit - Wiring Diagram. Scheme 165

Scheme 165: Power Source Circuit - Wiring Diagram
Scheme 165: Power Source Circuit - Wiring Diagram
  1. CHECK HARNESS AND CONNECTOR Disconnect the E3 (*1)/E18 (*2) connector. Measure the voltage according to the value(s) in the table below. Standard voltage TESTER CONNECTION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition E3-1 (B) ( (1) ) - Body ground Always 10 to 14 V E18-1 (B) ( (2) ) - Body ground Always 10 to 14 V E3-10 (ACC) ( (1) )-Body ground Engine switch on (ACC) 10 to 14 V E18-2 (ACC) ( (2) )- Body ground Engine switch on (ACC) 10 to 14 V (1) without Navigation System (2) with Navigation System Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONNECTION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition E3-18 (GND) ( (1) ) - Body ground Always Below 1 ohms E18-8 (E) ( (2) ) - Body ground Always Below 1 ohms (1) without Navigation System (2) with Navigation System see scheme 21: Identifying Clock Assembly Wire Harness Connector Terminal E3 Result RESULT CHART Result Proceed to OK (without Navigation System) A OK (with Navigation System) B NG C HINT: The whole heater control panel (*1)/multi-display should be replaced if the clock assembly has a malfunction because this part is not independently supplied. B: REPLACE MULTI-DISPLAY C: REPAIR OR REPLACE HARNESS OR CONNECTOR A: REPLACE HEATER CONTROL PANEL

Identifying Cigarette Lighter Components. Scheme 166

Scheme 166: Identifying Cigarette Lighter Components
Scheme 166: Identifying Cigarette Lighter Components

Scheme 167

Scheme 167
Scheme 167

Scheme 168

Scheme 168
Scheme 168
  1. REMOVE SHIFT LEVER KNOB SUB-ASSEMBLY (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
  2. REMOVE UPPER CONSOLE PANEL ASSEMBLY WITH FRONT ASH RECEPTACLE (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
  3. REMOVE CIGARETTE LIGHTER ASSEMBLY Remove the cigarette lighter knob and element assembly. Disconnect the connector. (Scheme 167): Locating Cigarette Lighter Knob And Element Assembly Turn the cigarette lighter nut in the direction indicated by the arrow to remove it. (Scheme 168): Turning Cigarette Lighter Nut Remove the cigarette lighter retainer. Remove the cigarette lighter socket. see scheme 25: Identifying Cigarette Lighter Retainer

Scheme 169

Scheme 169
Scheme 169
  1. INSTALL CIGARETTE LIGHTER ASSEMBLY Install the cigarette lighter socket. Install the cigarette lighter retainer. (Scheme 169): Identifying Cigarette Lighter Retainer And Cigarette Lighter Socket Turn the cigarette lighter nut in the direction indicated by the arrow to install it. see scheme 27: Turning Cigarette Lighter Nut Connect the connector. Install the cigarette lighter knob and element assembly.
  2. INSTALL UPPER CONSOLE PANEL ASSEMBLY WITH FRONT ASH RECEPTACLE (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
  3. INSTALL SHIFT LEVER KNOB SUB-ASSEMBLY (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) ) see scheme 28: Locating Cigarette Lighter Knob And Element Assembly

Identifying Power Outlet Socket Components. Scheme 170

Scheme 170: Identifying Power Outlet Socket Components
Scheme 170: Identifying Power Outlet Socket Components

Scheme 171

Scheme 171
Scheme 171
  1. REMOVE INSTRUMENT PANEL FINISH PANEL END LH (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
  2. REMOVE INSTRUMENT PANEL FINISH PANEL END RH (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
  3. REMOVE SHIFT LEVER KNOB SUB-ASSEMBLY (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
  4. REMOVE UPPER CONSOLE PANEL ASSEMBLY WITH FRONT ASH RECEPTACLE (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
  5. REMOVE HEATER SEAT SWITCH CONSOLE BASE (w/o Seat Heater System) (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
  6. REMOVE HEATER SEAT SWITCH CONSOLE BASE (w/ Seat Heater System) (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
  7. REMOVE CONSOLE BOX POCKET (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
  8. REMOVE CONSOLE BOX CARPET (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
  9. REMOVE CONSOLE REAR END PANEL SUB-ASSEMBLY (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
  10. REMOVE REAR CONSOLE BOX ASSEMBLY (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
  11. REMOVE POWER OUTLET SOCKET ASSEMBLY Disconnect the connector. Disengage the claw and remove the power outlet socket assembly. (Scheme 171): Identifying Power Outlet Socket Assembly Claw
  12. REMOVE POWER OUTLET SOCKET COVER Disengage the 2 claws and remove the power outlet socket cover. see scheme 31: Identifying Power Outlet Socket Cover Claws

Scheme 172

Scheme 172
Scheme 172

Scheme 173

Scheme 173
Scheme 173
  1. INSTALL POWER OUTLET SOCKET COVER Engage the 2 claws and install the power outlet socket cover. (Scheme 172): Identifying Power Outlet Socket Cover Claws
  2. INSTALL POWER OUTLET SOCKET ASSEMBLY Referring to the shape of the parts, align the power outlet socket assembly with the power outlet socket cover and install the power outlet socket assembly. (Scheme 173): Aligning Power Outlet Socket Assembly With Power Outlet Socket Cover Connect the connector.
  3. INSTALL REAR CONSOLE BOX ASSEMBLY (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
  4. INSTALL CONSOLE REAR END PANEL SUB-ASSEMBLY (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
  5. INSTALL CONSOLE BOX CARPET (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
  6. INSTALL CONSOLE BOX POCKET (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
  7. INSTALL HEATER SEAT SWITCH CONSOLE BASE (w/ Seat Heater System) (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) ) see scheme 34: Locating Connector
  8. INSTALL HEATER SEAT SWITCH CONSOLE BASE (w/o Seat Heater System) (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
  9. INSTALL UPPER CONSOLE PANEL ASSEMBLY WITH FRONT ASH RECEPTACLE (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
  10. INSTALL SHIFT LEVER KNOB SUB-ASSEMBLY (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
  11. INSTALL INSTRUMENT PANEL FINISH PANEL END RH (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
  12. INSTALL INSTRUMENT PANEL FINISH PANEL END LH (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )

See also:
• REMOVAL
• INSTALLATION

More articles — Other System