A/T Controls - MIL ON/DTC P2742 Set
ENGINEEG017-05
Title:
M.I.L. "ON" DTC P2742
Models:
'04 - '05 GX 470 & LX 470
November 8, 2005
Introduction
Some 2004 and 2005 model year vehicles equipped with the A750 ATM may experience an intermittent M.I.L. "ON" condition with DTC P2742 (Transmission Fluid Temperature Sensor B" Circuit Low). Replacement of the transmission wire harness will eliminate the condition.
Applicable Vehicles
2004 - 2005 model year GX 470 and LX 470 vehicles.
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 SSTs
Repair Procedure
1. To start diagnosis of the vehicle for DTC P2742, refer to the Technical Information System (TIS), applicable model and model year Repair Manual:
Diagnostics: Automatic Transmission (A 750): P2740, P2742 or P2743.
2. Monitor transmission fluid temperature sensor No. 2 during diagnosis and watch for a short circuit to intermittently occur.
NOTE:
If a short circuit is occurring, the transmission fluid temperature sensor No. 2 will read 302°F (150°C).
3. If no cause for the short circuit is found following the Repair Manual diagnosis, replace the transmission wire harness (P/N 82125-351 # 0).
^ Refer to TIS, 2004 - 2005 model year GX 470 Repair Manual: Automatic Transmission / Trans: Transmission Wire: Replacement for transmission wire harness replacement.
^ Refer to TIS, 2004 - 2005 model year LX 470 Repair Manual: Automatic Transmission: ATF Temperature Sensor: On-Vehicle Repair for transmission wire harness replacement.
4. Adjust fluid to proper level.
^ Refer to TIS, applicable model and model year Repair Manual, to properly adjust fluid level.
5. Test drive vehicle after replacement of transmission wire harness to confirm repair effectiveness.