Canada - Electrical - MIL ON/DTC P0A2D/249 Set

Bulletin
T-TCI- 3651

Issue Date
December 7, 2011

Market
Canada

Title
MIL "ON" DTC P0A2D/249

Service Category
Engine/Hybrid System

Section
Cooling

Market
Canada






APPLICABILITY:

INTRODUCTION:

Some 2010 model year Prius vehicles may exhibit a Master Warning Light (MWL) "ON" condition with Diagnostic Trouble Code (DTC) P0A2D/249, Drive Motor "A" Temperature Sensor Open Circuit, detected. This condition may be caused by water exposure to the Engine Relay Block if the Relay Block cover is not properly installed. Please refer to the procedure below to address this condition.






WARRANTY INFORMATION:






REQUIRED TOOLS & EQUIPMENT:

NOTE
Additional Techstream or Techstream LITE units may be ordered by completing the order form on ETAS (Tools > Tools and Equipment > Order Form) and faxing it to (416) 431-8342.

REPAIR PROCEDURE:

1. Remove the engine bay Relay Block cover and inspect inside for signs of water intrusion or contamination.
- If water intrusion or contamination is present, proceed to step 2.
- If no water intrusion or contamination is present, proceed to step 3.

2. If any fuses or relays show any signs of corrosion, repair or replace as necessary.







3. Disconnect and inspect connector DA1 at the Relay Block for signs of water intrusion or contamination.
- If water intrusion or contamination is found, clean and dry as needed, then proceed to step 4.
- If no water intrusion or contamination is found, proceed to step 4.

4. Reinstall the Relay Block cover and ensure it is properly secured.







A. Secure the rear hooks of the Relay Block cover.







B. Secure the front hook of the Relay Block cover.

5. Using ETAS Techstream, clear all DTCs and retest. If P0A2D/249 recurs, follow the Repair Manual diagnostic procedure.

Refer to ETAS/TIS Library, 2010 model year Prius Repair Manual:
Engine/Hybrid System - Hybrid/Battery Control System - "Hybrid/Battery Control: Hybrid Control System: P0A2C-247,P0A2D-249: Drive Motor "A" Temperature Sensor Circuit Low

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.