Abnormal Function Of A/C Combination Meter (EL003-06)

ABNORMAL FUNCTION OF A/C COMBINATION METER

TECHNICAL SERVICE BULLETIN

INTRODUCTION

Some 2004 - 2005 model year RX 330 vehicles may experience an A/C button indicator light blinking (inoperative A/C compressor), and/or various combination meter warning lamps illuminated at times (ABS/VSC). An improved engine compartment Junction Block has been developed to correct this condition.

APPLICABLE VEHICLES

• 2004 - 2005  model year RX 330  vehicles produced BEFORE  the Production Change Effective VINs shown below.

PRODUCTION CHANGE INFORMATION

MODEL	PLANT	DRIVETRAIN	PRODUCTION CHANGE EFFECTIVE VIN
RX330	TMMC	2WD	2T2GA31U*5C039941
		4WD	2T2HA31U*5C083037
	TMK	2WD	JTJGA31U*50058361
		4WD	JTJHA31U*50096093

PARTS INFORMATION

PREVIOUS PART NUMBER	CURRENT PART NUMBER	PART NAME	QTY
82721-48050	Same	Block, Engine Room Junction	1

WARRANTY INFORMATION

OP CODE	DESCRIPTION	TIME	OFP	T1	T2
EL5070	R & R Junction Block	0.8	82721-48050	8C	99

APPLICABLE WARRANTY

This repair is covered under the Lexus Comprehensive Warranty. This warrant) effect for 48 months or 50,000 miles, whichever occurs first, from the vehicle's in-service date.  Warranty application is limited to correction of a problem based upon a customer's specific complaint.

REPAIR PROCEDURE

1. Remove the battery.
2. Remove the driver's side Junction Block No. 2 engine Fuse Block cover.
3. Remove the 2 bolts.
   Fig 1: Removing Bolts

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Disconnect the 4 claws and remove the Junction Block cover (see illustration below for detail).
   Fig 2: Removing Junction Block Cover

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   Fig 3: Removing Claws

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   The Junction Block has a part label affixed as shown below. Verify that the fourth (4th) digit of the upper 8-digit number on the label is a "2" (previous parts would be a "1").

   Fig 4: Identifying Part Label

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Is the part number check digit identified as "2"?

   • Yes - The car is already equipped with countermeasure parts. Perform A/C system diagnostics. Refer to the Technical Information System (TIS), 2005 model year

     RX 330 Repair Manual: Diagnostics: Air Conditioning System: Pre-Check.

   • No - Continue to step 5.
5. Disconnect the eight (8) connectors from Junction Block No. 2.
6. Remove the engine compartment Junction Block.
7. Reassemble the Junction Block, using the NEW countermeasure part, in reverse order.
8. Re-initialize power systems.
   • For 2004 model year RX 330 vehicles, refer to TSIB No. PG002-03 , "Pre-Delivery (PDS) Information for RX 330."
   • For 2005 model year RX 330 vehicles, refer to TSIB No. PD010-05 , "Power System Initialization During PDS."
9. Verify that the combination meter and air conditioning are functioning properly.