Lexus ES300 (1997 year). Manual — part 271

V08418

Turn ignition Key from LOCK position to ACC position.

Troubleshooting for ANTI–THEFT SYSTEM

Display A:

ID Number is set.

Display E:

ANTI–THEFT SYSTEM opera-

tion condition. (ID number input

error 10 times or more.)

Display B

”SEC display disappears after 1

second.

Radio switch ON.

Take to designated radio

service station.

Display B

Display D

Refer to each

malfunction item.

Normal

operation.

Radio switch ON.

Normal operation.

Cancel ID number, refer to each malfunction item.

Yes

No

OK

NG

ANTI–THEFT SYSTEM operation condition. (ID number input error 9 times or less.)

Input ID number to cancel ANTI–THEFT SYSTEM, and check display.

Display A

→

B

Display B

Display E

Display C

→

A

Radio switch ON.

Refer to each

malfunction item.

Take to designated

radio service station.

ANTI–THEFT SYSTEM not can-

celled. (ID number input error 10

times or less.)

Display D

ANTI–THEFT SYSTEM cancelled.

Check audio system again.

Normal operation.

OK

NG

Cancel ID number, refer to each malfunction item.

Liquid Crystal Display (LCD) or VFD for Audio System

Display ”A”

Display ”B”

Display ”C”

Display ”D” Example:

Display ”E”

2 DIN Type

1 DIN Type

Blank

No Illumination

2 DIN Type

1 DIN Type

2 DIN Type

1 DIN Type

Error Times

2 DIN Type

1 DIN Type

Radio Display

1 DIN Type

2 DIN Type

HINT:

Refer to Owner’s Manual for operation details of ANTI–THEFT SYSTEM.

When the ID number has been cancelled, reset the same number after completing the operation, or

inform the customer that it has been cancelled.

BE–148

–

BODY ELECTRICAL

AUDIO SYSTEM

1532

1997 LEXUS ES300 (RM511U)

V08480

1

Radio

RADIO NOT OPERATING WHEN POWER SWITCH TURNED TO ”ON”

+ B wire harness faulty.

GND faulty.

Power amplifier or wire harness faulty.

Power amplifier or wire harness faulty.

GND faulty.

Check if GND (wire harness side) to power amplifier is OK?

Is tape player operating normally?

Check if RAD–No.2 fuse is OK?

Is ACC applied to power amplifier?

Is + B applied to power amplifier?

Yes

NG

No

OK

No

No

No

No

OK

OK

OK

Yes

Yes

Yes

Yes

NG

NG

NG

Check if RAD–No.1 fuse is OK?

Is + B applied to radio assembly?

Radio assembly faulty.

Replace fuse.

ACC wire harness faulty.

Is ACC applied to radio assembly?

Check if GND (wire harness side) to radio assembly is OK?

Radio assembly faulty.

Replace fuse.

–

BODY ELECTRICAL

AUDIO SYSTEM

BE–149

1533

1997 LEXUS ES300 (RM511U)

*

V08481

2

Radio

DISPLAY INDICATES WHEN POWER SWITCH TURNED TO
”ON”, BUT NO SOUND (INCLUDING ”NOISE”) IS PRODUCED

+ B wire harness faulty.

GND faulty.

Power amplifier faulty.

Speaker wire harness faulty.

GND faulty.

Check if GND (wire harness side) to power amplifier is OK?

Is tape player operating normally?

Check if RAD–No.2 fuse is OK?

Is ACC applied to power amplifier?

Is + B applied to power amplifier?

Yes

NG

No

OK

No

No

No

No

OK

OK

OK

Yes

Yes

Yes

Yes

NG

NG

NG

Check if RAD–No.1 fuse is OK?

Is + B applied to radio assembly?

Radio assembly faulty. Recheck system after repair.

Replace fuse.

ACC wire harness faulty.

Is ACC applied to radio assembly?

Check if GND (wire harness side) to radio assembly is OK?

Radio assembly faulty.

Replace fuse.

Is there continuity in speaker wire harness?

Temporarily install another speaker. Functions OK?

Hiss noise from speaker?

Yes

Yes

No

No

No

Yes

Power amplifier faulty.

Power amplifier faulty.
Recheck system after repair.

Speaker faulty.

BE–150

–

BODY ELECTRICAL

AUDIO SYSTEM

1534

1997 LEXUS ES300 (RM511U)

V08482

Speaker wire harness faulty.

Is tape player operating normally?

Yes

No

Radio assembly faulty.
Recheck system after repair.

Radio assembly faulty.

Temporarily install another speaker? Functions OK?

Power amplifier faulty. Recheck system after repair.

Speaker faulty.

4

Radio

ANY SPEAKER DOSE NOT WORK

5

Radio

EITHER AM OR FM DOES NOR WORK
FEW PRESET TUNING BANDS

Is hiss noise produced by non–functioning speaker?

Is there continuity in speaker wire harness?

Problem with radio wave signals or location?

Are both AM and FM defective?

Yes

Yes

No

Yes

No

No

3

Radio

NOISE PRESENT, BUT AM–FM NOT OPERATING

Go to No.25

Radio faulty.

If radio side faulty.

Radio assembly faulty.

Go to No.16

Is tape player operating normally?

Radio assembly faulty.

Is power for the antenna being output from the radio assembly?

Hiss noise from speaker?

Temporarily install another speaker. Functions OK?

Radio assembly faulty. Recheck system after repair.

Speaker faulty.

Power amplifier faulty.
Recheck system after repair.

Poor signals, poor location.

No

Yes

Yes

No

No

No

Yes

Yes

Yes

Yes

No

No

–

BODY ELECTRICAL

AUDIO SYSTEM

BE–151

1535

1997 LEXUS ES300 (RM511U)