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Service bulletin 970506

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id53030
Published by NHTSA1997-11-06
Manufacturer's number970506
Manufacturer's date1997-05-06
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

EXHIBITING A MIL "ON" CONDITION (DTC CODE) P0116. *YC

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine

Trouble codes named

P0116

Vehicles listed
TOYOTA LAND CRUISER1997
TOYOTA TOYOTA1997

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
T-TT-0010-10 Rev2018-04-02. Service bulletin. Tech Tip: Low battery voltage can contribute to a MIL "ON" condition for P0335 (Crankshaft Position Sensor Circuit) and/or P0340 (Camshaft Position Sensor Circuit) due to inconsistent rotational speed of the engine's crankshaft.
970502003971997-11-06. Service bulletin. EXHIBITING A MIL "ON" CONDITION (DTC CODE P0116- "ENGINE COOLANT TEMPERATRUE MALFUNCTION") UNDER CERTAIN NORMAL OPERATING CONDITIONS. *YC
EG004961997-05-27. Service bulletin. LAND CRUISER (1FZ-FE) THERMOSTAT GASKET LEAK. *TW