MIL ON - DTC P0116 (ECT Range/Performance)

ENGINE
EG003-97

May 2, 1997

Introduction

Some 1997 Land Cruisers may exhibit a MIL "ON" condition (DTC code PO116 - "engine coolant temperature malfunction") under certain normal operating conditions. To improve the operating logic of the coolant temperature circuit, the engine ECM has been changed.

NOTE
When diagnosing a vehicle with this condition, check all related components according to the Repair Manual. If all parts pass testing, the ECM logic may be too sensitive and require replacement.

Production Change Information

^ The new ECM was installed in production after VIN JT3HJ85 * * V0169421.





Parts Information