Home/Lexus/IS/Lexus IS II (2005-2008)/Repair manual/Antenna Systems/Audio / Visual: Removal & Installation
Contents Wiring diagrams Section: Antenna Systems All sections

Audio / Visual: Removal & Installation Lexus IS II

Antenna Systems 23 illustrations ~1034 words

REMOVAL

Note. When disassembling the network gateway ECU, eliminate static electricity by touching the vehicle body to prevent the components from being damaged.

Scheme 179

Scheme 179: REMOVAL

Scheme 180

Scheme 180
  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait for 90 seconds after disconnecting the cable to prevent airbag deployment (See «AIRBAG SYSTEM»(ref-235542-S13106599752006062400000) ).
  2. REMOVE FRONT DOOR SCUFF PLATE HINT: Removal procedure of the RH side is the same as that of the LH side (See «REMOVAL»(ref-235599-S10274364092006062400000) ).
  3. REMOVE FRONT DOOR OPENING TRIM COVER HINT: Removal procedure of the RH side is the same as that of the LH side (See «REMOVAL»(ref-235599-S10274364092006062400000) ).
  4. REMOVE SIDE INSTRUMENT PANEL (See «REMOVAL»(ref-235591-S20751754672006062400000) )
  5. REMOVE NO. 2 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY (See «REMOVAL»(ref-235591-S20751754672006062400000) )
  6. REMOVE FRONT PASSENGER SIDE KNEE AIRBAG ASSEMBLY (See «REMOVAL»(ref-235542-S26525252422006062400000) )
  7. REMOVE GLOVE COMPARTMENT DOOR ASSEMBLY (See «REMOVAL»(ref-235591-S20751754672006062400000) )
  8. REMOVE NETWORK GATEWAY ECU Disconnect the connector. Disengage the 2 claws and remove the cover. Remove the network gateway ECU.

Scheme 181

Scheme 181: INSTALLATION

Scheme 182

Scheme 182
  1. INSTALL NETWORK GATEWAY ECU Install the network gateway ECU. Engage the 2 claws to install the cover. Connect the connector.
  2. INSTALL GLOVE COMPARTMENT DOOR ASSEMBLY (See «INSTALLATION»(ref-235591-S32740741772006062400000) )
  3. INSTALL FRONT PASSENGER SIDE KNEE AIRBAG ASSEMBLY (See «INSTALLATION»(ref-235542-S26749810932006062400000) )
  4. INSTALL NO. 2 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY (See «INSTALLATION»(ref-235591-S32740741772006062400000) )
  5. INSTALL SIDE INSTRUMENT PANEL (See «INSTALLATION»(ref-235591-S32740741772006062400000) )
  6. INSTALL FRONT DOOR OPENING TRIM COVER
  7. INSTALL FRONT DOOR SCUFF PLATE
  8. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
  9. PERFORM INITIALIZATION NOTE: Some systems need initialization when disconnecting the cable from the negative battery terminal (See «INITIALIZATION»(ref-235541-S32349848442006062400000) ).
  10. INSPECT SRS WARNING LIGHT (see «DIAGNOSIS SYSTEM»(ref-235542-S25406180262006062400000) )

Scheme 183

Scheme 183: COMPONENTS

Scheme 184

Scheme 184: REMOVAL

Scheme 185

Scheme 185

Scheme 186

Scheme 186
  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait for 90 seconds after disconnecting the cable to prevent airbag deployment (See «AIRBAG SYSTEM»(ref-235542-S13106599752006062400000) ).
  2. REMOVE LOWER NO. 3 STEERING WHEEL COVER (See «REMOVAL»(ref-235542-S05597931522006062400000) )
  3. REMOVE LOWER NO. 2 STEERING WHEEL COVER (See «REMOVAL»(ref-235542-S05597931522006062400000) )
  4. REMOVE STEERING PAD (See «REMOVAL»(ref-235542-S05597931522006062400000) )
  5. REMOVE STEERING PAD SWITCH ASSEMBLY Disconnect the cruise switch connector. Disengage the connector clamp. Disconnect the pad switch connector. Remove the screw. Disengage the 2 claws and remove the steering pad switch. Remove the screw. Disengage the 2 claws and remove the steering pad switch.

Scheme 187

Scheme 187: INSPECTION

Scheme 188

Scheme 188
  1. INSPECT STEERING PAD SWITCH (w/ Navigation System) Disconnect the steering pad switch assembly connector. Measure the resistance according to the values in the table below. Standard resistance TESTER CONNECTION AND SPECIFIED CONDITION CHART Tester connection Condition Specified condition AU1 - EAU No switch is pushed Approx. 100 kohms AU1 - EAU SEEK+ switch: push Approx. 0 ohms AU1 - EAU SEEK- switch: push Approx. 0.3 kohms AU1 - EAU VOL+ switch: push Approx. 1 kohms AU1 - EAU VOL- switch: push Approx. 3.2 kohms AU2 - EAU No switch is pushed Approx. 100 kohms AU2 - EAU MODE switch: push Approx. 0 ohms AU2 - EAU VOICE switch: push Approx. 3.2 kohms AU2 - EAU ON HOOK switch: push Approx. 0.3 kohms AU2 - EAU OFF HOOK switch: push Approx. 1 kohms If the result is not as specified, replace the steering pad switch.
  2. INSPECT STEERING PAD SWITCH (w/o Navigation System) Disconnect the steering pad switch assembly connector. Measure the resistance according to the values in the table below.

Standard resistance

Tester connectionConditionSpecified condition
AU1 - EAUNo switch is pushedApprox. 100 kohms
AU1 - EAUSEEK+ switch: pushApprox. 0 ohms
AU1 - EAUSEEK- switch: pushApprox. 0.3 kohms
AU1 - EAUVOL+ switch: pushApprox. 1 kohms
AU1 - EAUVOL- switch: pushApprox. 3.2 kohms
AU2 - EAUNo switch is pushedApprox. 100 kohms
AU2 - EAUMODE switch: pushApprox. 0 ohms

TESTER CONNECTION AND SPECIFIED CONDITION CHART

If the result is not as specified, replace the steering pad switch.

Scheme 189

Scheme 189: INSTALLATION

Scheme 190

Scheme 190

Scheme 191

Scheme 191
  1. INSTALL STEERING PAD SWITCH ASSEMBLY Engage the 2 claws and install the steering pad switch. Install the screw. Engage the 2 claws and install the steering pad switch. Install the screw. Connect the connector to the spiral cable. Connect the cruise connector and install the connector clamp.
  2. INSTALL STEERING PAD (See «INSTALLATION»(ref-235542-S14674145642006062400000) )
  3. INSTALL LOWER NO. 3 STEERING WHEEL COVER (See «INSTALLATION»(ref-235542-S14674145642006062400000) )
  4. INSTALL LOWER NO. 2 STEERING WHEEL COVER (See «INSTALLATION»(ref-235542-S14674145642006062400000) )
  5. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
  6. PERFORM INITIALIZATION NOTE: Some systems need initialization when disconnecting the cable from the negative battery terminal (See «INITIALIZATION»(ref-235541-S32349848442006062400000) ).
  7. INSPECT SRS WARNING LIGHT (see «DIAGNOSIS SYSTEM»(ref-235542-S25406180262006062400000) )

Scheme 192

Scheme 192: COMPONENTS

Scheme 193

Scheme 193: REMOVAL

Scheme 194

Scheme 194
  1. REMOVE MAP LIGHT ASSEMBLY (w/o Sliding Roof) (See «REMOVAL»(ref-235599-S10274364092006062400000) )
  2. REMOVE MAP LIGHT ASSEMBLY (w/ Sliding Roof) (See «REMOVAL»(ref-235599-S10274364092006062400000) )
  3. REMOVE AMPLIFIER MICROPHONE Disconnect the connector. Disengage the 2 claws and remove the amplifier microphone.

Scheme 195

Scheme 195: INSTALLATION

Scheme 196

Scheme 196
  1. INSTALL AMPLIFIER MICROPHONE Engage the 2 claws and install the amplifier microphone. Connect the connector.
  2. INSTALL MAP LIGHT ASSEMBLY (w/o Sliding Roof) (See «INSTALLATION»(ref-235599-S41342360772006062400000) )
  3. INSTALL MAP LIGHT ASSEMBLY (w/ Sliding Roof) (See «INSTALLATION»(ref-235599-S41342360772006062400000) )

Scheme 197

Scheme 197: ON-VEHICLE INSPECTION
  1. INSPECT WINDOW GLASS ANTENNA WIRE Check for continuity of the antenna. HINT: Check for continuity at the center of each antenna wire as shown in the illustration. NOTE: When cleaning the glass, wipe it in the direction of the wire with a soft dry cloth. Take care not to damage the wire. Do not use detergents or glass cleaners with abrasive ingredients. When measuring voltage, wrap a piece of tin foil around the tip of the negative probe and press the foil against the wire with your finger, as shown in the illustration. OK: There is continuity in the antenna. If the result is not specified, repair the wind glass antenna wire.

Scheme 198

Scheme 198: REPAIR

Scheme 199

Scheme 199

Scheme 200

Scheme 200

Scheme 201

Scheme 201
  1. WINDOW GLASS ANTENNA WIRE NOTE: When cleaning the glass, use a soft, dry cloth, and wipe the glass in the direction of the wire. Take care not to damage the wires. Do not use detergents or glass cleaners with abrasive ingredients. When measuring voltage, wind a piece of tin foil around the top of the negative probe and press the foil against the wire with your finger, as shown in the illustration. Check the voltage at the center of each wire, as shown in the illustration.
  2. REPAIR WINDOW GLASS ANTENNA WIRE Clean the broken wire tips with grease, wax and silicone remover. Place masking tape along both sides of the wire to be repaired. Thoroughly mix the repair agent (DuPont paste No. 4817 or equivalent). Using a fine tip brush, apply a small amount of the repair agent to the wire. After a few minutes, remove the masking tape. Do not repair the antenna wire for at least 24 hours.