Canada - A/T Controls - MIL ON, DTC P2742
BulletinTSB2177
Issue Date
November 29, 2005
Title
M.I.L. "ON" DTC P2742
Component
AUTOMATIC TRANSMISSION & TRANSAXLE
Models
'04 - '05 GX 470 & LX 470
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:
REQUIRED SSTs:
REPAIR PROCEDURE:
1. To start diagnosis of the vehicle for DTC P2742, refer to ETAS, applicable model and model year Repair Manual: Diagnostics: Automatic Transmission (A750): P2740, P2742 or P2743.
2. Monitor transmission fluid temperature sensor No. 2 during diagnosis and watch for a short circuit to intermittently occur.
NOTE:
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, refer to the following sections on ETAS to replace the transmission wire harness (P/N 82125-351#0).
- Refer to ETAS, 2004 - 2005 model year GX 470 Repair Manual: Automatic Transmission / Trans: Transmission Wire: Replacement for transmission wire harness replacement.
- Refer to ETAS, 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 ETAS, 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.
NOTE:
Issue of this Technical Service Bulletin is to ensure that proper repair information is available. IT DOES NOT CONSTITUTE AN AUTHORIZATION FOR REPAIR. Normal provisions of the formal warranty policy, as applicable, will apply.