Canada - Engine - MIL ON/DTC's P261B/P261C

Bulletin
TSB3427

Issue Date
July 29, 2010

Market
Canada

Title
MIL "ON" DTC P261B OR P261C - COOLANT PUMP CONTROL MALFUNCTION

Component
ENGINE MECHANICAL

Models
'10 Prius

INTRODUCTION:
Some vehicles may exhibit a MIL "ON" condition with one or more of the following Diagnostic Trouble Codes (DTCs):
- P261B - Engine Coolant Pump "B" Control Malfunction
- P261C - Engine Coolant Pump "B" Control Circuit Low
Improvements have been made to the electric water pump to correct this condition.





APPLICABILITY:

PRODUCTION CHANGE INFORMATION:







This TSB applies to vehicles produced BEFORE the Production Change Effective VIN shown.






WARRANTY INFORMATION:






PARTS INFORMATION:






REQUIRED TOOLS & EQUIPMENT:

NOTE:
Additional Techstream units may be ordered by completing the order form on ETAS and faxing it to (416) 431-8342.

REPAIR PROCEDURE:
1. Using ETAS Techstream, check for Diagnostic Trouble Codes (DTCs).
2. Are DTCs P261B or P261C present?
- YES - Continue to step 3.
- NO - Diagnose other DTC(s) first.

3. Disconnect the water pump assembly connector.
4. Turn the power switch ON (IG).
5. Measure the voltage at D13-1 to body ground.
6. Is there battery voltage?
- YES - Go to step 7.
- NO - This TSB does NOT apply. Refer to the Repair Manual for additional diagnostics.

Refer to the Repair Manual within E-TAS / TIS library:
- Division: Toyota
- Model: Prius
- Year: 2010
- Service Category: Engine/Hybrid System
- Section: Engine Control
- Keyword: 2ZR-FXE Engine Control: SFI System: P261B-P261D: Coolant Pump "B" Control Malfunction

7. Replace the electric water pump.
Refer to the Repair Manual within E-TAS / TIS library:
- Division: Toyota
- Model: Prius
- Year: 2010
- Service Category: Engine/Hybrid System
- Section: Cooling
- Keyword: 2ZR-FXE Cooling: Water Pump: Removal / Installation

8. Clear DTCs and confirm repair.

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.