Ignition System - MIL ON/Multiple Ignition Coil DTC's
L-SB-0043-09April 22, 2009
M.I.L. "ON" DTC P0351, P0352, P0353, P0354, P0355, and/or P0356
Service Category
Engine/Hybrid System
Section
Engine Control
Market
USA
Applicability
Introduction
Some 2006 model year RX400h vehicles may exhibit a M.l.L. "ON" condition with one or more of the following Diagnostic Trouble Codes (DTCs) stored as a result of an ignition coil malfunction:
The engine may not start, and may also have the following DTCs:
Replacement of the affected ignition coil will address this condition.
Production Change Information
This TSIB applies to vehicles produced BEFORE the Production Change Effective VINs shown.
Parts Information
Warranty Information
APPLICABLE WARRANTY
^ This repair is covered under the Lexus Comprehensive Warranty. This warranty is in 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.
Required Tools & Equipment
Additional TIS Techstream units may be ordered by calling Approved Dealer Equipment (ADE).
Repair Procedure
NOTE
It is likely that only one ignition coil is the cause of the DTCs, even if all ignition coil DTCs are present.
HINT
The malfunctioning ignition coil may have a discolored top surface.
Refer to the Technical Information System (TIS) applicable model year RX 400h Repair Manual for diagnostic information:
^ 2006 RX 400h:
Engine/Hybrid System - Engine Control - SFI System - "R0351: Ignition Coil "A" Primary/Secondary Circuit"