Suzuki GRAND VITARA User Manual

1A-91 Engine General Information and Diagnosis:
DTC P0116: Engine Coolant Temperature Circuit Range / Performance
S5JB0A1104026
Wiring Diagram
DTC Detecting Condition and Trouble Area
8 Ground circuit check
1) Remove ECM from its bracket with ECM connectors
connected.
2) Measure resistance between “C37-57” terminal of ECM
connector and vehicle body ground.
Is resistance below 3
Ω ?
“GRY/GRN” wire is
open circuit or high
resistance circuit. Poor
“C37-57” connection.
Faulty ECM ground
circuit. If circuit is OK,
substitute a known-
good ECM and recheck.
9 IAT sensor for performance check
1) Check IAT sensor according to “Mass Air Flow (MAF)
and Intake Air Temperature (IAT) Sensor Inspection: in
Section 1C”.
Is it in good condition?
Substitute a known-
good ECM and recheck.
Replace MAF and IAT
sensor.
Step Action Yes No
C37-57
GRY/GRNGRY/GRN
3
1
2
5V
C37-24
PPL/YEL
E23 C37
34
1819
5671011
1720
47 46495051
2122
52
1625
9
24
14
29
5557 54 53
59
60 58
2
262728
15
30
56 48
32 31343536374042 39 38
44
45 43 41 33
11213
23
834
1819
5671011
1720
47 46495051
2122
52
1625
9
24
14
29
5557 54 53
59
60 58
2
262728
15
30
56 48
32 31343536374042 39 38
44
45 43 41 33
11213
23
8
I5JB0A110038-01
1. ECT sensor
2. ECM
3. To other sensors
DTC detecting condition Trouble area
ECT sensor values is less than –10 °C, 14 °F (for M16 engine)
or –5 °C, 23 °F (for J20 engine) while engine is running under
more than specified engine load (more than 1000 rpm) for 2 to
1116 min (depending on ECT at engine start) continuously from
engine start.
(2 driving cycle detecting logic)
• ECT sensor
• ECT sensor circuit
•Thermostat
•ECM

Suzuki GRAND VITARA Specifications

General

Brand	Suzuki
Model	GRAND VITARA
Category	Automobile
Language	English