Toyota Camry Manual page 1264

DTC P0116
CIRCUIT DESCRIPTION
Refer to DTC P0115 (Engine Coolant Temp. Circuit Malfunction) on page DI–233.
DTC No.
If THW –7°C (19.4°F), 20 min. or more after starting
engine, engine coolant temp. sensor value is 20°C (68°F) or
less
(2 trip detection logic)
If THW X –7°C (19.4°F) and
after starting engine,
engine coolant temp. sensor value is 20°C (68°F) or less
(2 trip detection logic)
If THW X 10°C (50 °F), 2 min. or more after starting engine,
P0116
engine coolant temp. sensor value is 30°C (86°F)
(2 trip detection logic)
When THW X 35°C (95°F) or more and less than 60°C
(140°F), THA X – 6.7°C (19.9°F) or more, when starting
engine , condition (a) and (b) continues:
(a) Vehicle speed is changing (Not stable)
(b) When starting engine, THW< 3°C (37.4°F)
(2 trip detection logic)
INSPECTION PROCEDURE
HINT:
D
If DTCs P0115 (Engine Coolant Temp. Circuit Malfunction) and P0116 (Engine Coolant Temp. Circuit
Range/Performance) are output simultaneously, engine coolant temp. sensor circuit may be open.
Perform troubleshooting of DTC P0115 first.
D
Read freeze frame data using TOYOTA hand–held tester or OBD II scan tool. Because freeze frame
records the engine conditions when the malfunction is detected, when troubleshooting it is useful for
determining whether the vehicle was running or stopped, the engine warmed up or not, the air–fuel
ratio lean or rich, etc. at the time of the malfunction.
1 Are there any other codes (besides DTC P0116) being output?
NO
DIAGNOSTICS
Engine Coolant Temp. Circuit Range/
Performance Problem
DTC Detecting Condition
10°C (50°F), 5 min. or more
YES
– ENGINE (1MZ–FE)
D Engine coolant temp. sensor
Engine coolant temp sensor
D Cooling system
Go to relevant DTC chart.
Author :
Trouble Area
Date :
DI–237
DI07J–06
472