DI
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34
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DIAGNOSTICS
ENGINE
1996 LAND CRUISER (RM451U)
DTC
P0116
Engine Coolant Temp. Circuit Range/
Performance Problem
CIRCUIT DESCRIPTION
Refer to DTC P0115 (Engine Coolant Temp. Circuit Malfunction) on page
DI
−
30
.
DTC No..
DTC Detecting Condition
Trouble Area
P0116
If THW
y
10
°
C (50
°
F), 2 min. or more after starting engine,
engine coolant temp. sensor value is 35
°
C (95
°
F) or less
(2 trip detection logic)
S
Engine coolant temp. sensor
S
Cooling system
If
−
7
°
C (19.4
°
F)
x
THW < 10
°
C (50
°
F), 5 min. or more after
starting engine, engine coolant temp. sensor value 35
°
C
(95
°
F) or less
(2 trip detection logic)
If THW <
−
7
°
C (19.4
°
F), 20 min. or more after starting engine,
engine coolant temp. sensor value is 35
°
C (95
°
F) or less
(2 trip detection logic)
INSPECTION PROCEDURE
HINT:
If DTC 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.
1
Are there any other codes (besides DTC P0116) being output?
YES
Go to relevant DTC chart.
NO
2
Check thermostat (See page
CO
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9
).
NG
Replace the thermostat.
OK
Replace engine coolant temp. sensor.
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Version 1.00 - 12/21/2010