Lexus SC300 / Lexus SC400. Manual — part 942

OK

NG

Type I

NG

Type II

NG

OK

OK

NG

INSPECTION PROCEDURE

1

Check output condition of diag. code 51.

C

P

(2) Connect terminals TE2 and E1 of TDCL.

(2) Turn ignition switch on.

(2) Crank the engine.

(2) Connect terminal TE1 and E1 of TDCL.

Check if diagnostic code “51” is output when then shift
level is in the P and D shift positions.

Result:

Go to step 2.

Go to step 3.

Proceed to next circuit inspection shown on ma-

trix chart (See page

TR–35

).

2

Check for open in harness and connector between engine & ECT ECU and neutral start switch

(See page

IN–27

).

Check and replace engine & ECT ECU.

Repair or replace harness or connector.

3

Check neutral start switch (See page

AT–100

).

Replace neutral start switch.

Check and replace engine & ECT ECU.

–

ENGINE TROUBLESHOOTING

Circuit Inspection

TR–123

VALVE CLEARANCE ADJUSTING TOOL SET

Page 1 of 1

The Valve Lifter Press has undergone two modifications that will improve service procedures
on UZ and VZ series engines.

1. Due to space limitations on these engines, the thickness of the valve lifter press jaws

and its connecting rivet have been reduced. This reduction will allow proper
compression of the cam follower and spring without the tool slipping out of position.

2. The front jaw angle on the valve lifter press has also been modified. This change will

allow easier installation of the tool between the camshaft and the follower, and also
provide improved leverage for the compression of the cam follower and spring.

The updated tool set, Part Number 09248–55020, supersedes your previous 09248–55010
tool set. This new tool set will service all current Lexus engines.

SST’S/SSI’S
001
OCTOBER 11, 1991
ALL MODELS

A/C COMPRESSOR OIL APPLICATIONS

Page 1 of 1

Care must be taken to use only refrigerant oil which is compatible to the vehicle’s system.
Following are A/C oil application charts for both R–12 and HFC–134a systems:

R–12 SYSTEMS

MODEL

OIL TYPE

PART NUMBER

QUANTITY

All Models

ND–Oil 6

P/N (88899–28040)

60 cc

(or Equivalent)

P/N (07117–68040)

500 cc

HFC–134A SYSTEMS

MODEL

OIL TYPE

PART NUMBER

QUANTITY

All Models

ND–Oil 8

P/N (08885–09109)

40 cc

P/N (08885–09107)

250 cc

HEATING & AIR CONDITIONING
AC93–004
OCTOBER 22, 1993
ALL MODELS

DATE:

JULY 19, 1996

Title

1992 - 1995 SC 300/400 A/C CONTROL ASSEMBLY SERVICE PARTS

Page 1 of 6

To allow repairs to the A/C Control Assembly, service parts are now available. The following
information on parts and troubleshooting will aid you in addressing complaints with the LCD
display, night illumination or switch indicators.

PREVIOUSLY AVAILABLE PARTS:

CURRENTLY AVAILABLE PARTS:

*

Face Plate is not available as a separate part.

REF

:

HEATING & AIR
CONDITIONING

NO:

AC004-96

MODEL:

SC 300/400