Suzuki Grand Vitara JB416 / JB420 (ESP model). Service manual — part 101
10B-6 Body Electrical Control System:
Final Confirmation Test
Confirm that the problem symptom has gone and the body electrical control system is free from any abnormal
conditions. If what has been repaired is related to the malfunction DTC, check DTC again and confirm that no DTC is
indicated.
Scan Tool Data
S5JB0EA204003
Scan tool Data
Condition
Normal condition /
reference value
Vehicle Speed
At stop with ignition switch turned ON
0 km/h
Outside air Temp
Reference value is relative to outside air temperature
–40
°C – 70 °C
(–40
°F – 158 °F)
Battery Voltage
At specified idle speed after warming up
10 – 14 V
Coolant Temp
At specified idle speed after warming up
80
°C – 100 °C
(176
°F – 212 °F)
Engine Speed
Engine idling with no load applied after warming up
Desired idle speed
± 50 rpm
Fuel Consumption
At specified idle speed after warming up
0.0 km/l
Key Reminder Sw
Ignition key inserted in ignition key cylinder
Key in
Ignition key pulled out from ignition key cylinder
Pulled
Door key Sw
Key cylinder switch of driver side door at lock position
LOCK
Key cylinder switch of driver side door not turned
Neutral
Key cylinder switch of driver side door at unlock position
Unlock
Door Lock Sw
Lock side of manual door lock switch pressed
LOCK
Manual door lock switch not pressed
Neutral
Unlock side of manual door lock switch pressed
Unlock
Driv Door Sw
Driver side door open
Open
Driver side door closed
Close
Pass Door Sw
Doors other than driver side door open
Open
Doors other than driver side door closed
Close
Brake Fluid Level
Brake fluid level at MIN level or higher
Normal
Brake fluid level lower than MIN level
Low
Parking Brake Sw
Parking brake lever pulled
ON
Parking brake lever released
OFF
Rear Defogger Sw
Rear end door window defogger switch turned ON with engine
running
ON
Rear end door window defogger switch turned OFF with engine
running
OFF
Tail Light Sw
Lighting switch at HEAD or CLEARANCE position
ON
Lighting switch at OFF position
OFF
Driv Seat belt Sw
Driver side seat belt fastened
Fasten
Driver side seat belt unfastened
Unfasten
Charge Light
Engine at stop with ignition switch turned ON
ON
Engine running
OFF
Oil pressure switch
Engine at stop with ignition switch turned ON
ON
Engine running
OFF
A/C Switch
A/C and ignition switch turned ON
ON
A/C switch turned OFF
OFF
Rear Wiper Sw
Rear wiper switch at ON position
ON
Rear wiper switch at INT position
INT
Rear wiper switch at OFF position
OFF
Front Fog Light Sw
Lighting switch at HEAD or CLEARANCE position and front fog
light switch at ON position
ON
Lighting switch at HEAD or CLEARANCE position and front fog
light switch at OFF position
OFF
Headlight Sw
Lighting switch at HEAD position
ON
Lighting switch at OFF position
OFF
Body Electrical Control System: 10B-7
Scan Tool Data Definitions
Vehicle Speed (km/h, mph): This parameter indicates the vehicle speed computed by ECM.
Outside air Temp (
°C, °F): It is detected by outside air temperature sensor.
Battery Voltage (V): This parameter indicates battery positive voltage inputted to BCM.
Coolant Temp (Engine coolant temperature) (
°C, °F): This parameter indicates the engine coolant temperature
computed by ECM.
Engine Speed (RPM): This parameter indicates the engine speed computed by ECM.
Fuel Consumption (km/l): This parameter indicates the fuel consumption computed by ECM.
Key Reminder Sw (Key reminder switch) (Pulled / Key in): This parameter indicates the state of the key reminder
switch.
Door key Sw (Door key cylinder switch) (Lock / Neutral / Unlock): This parameter indicates the state of the door
key cylinder switch.
Door lock Sw (Manual door lock switch) (Lock / Neutral / Unlock): This parameter indicates the state of the
manual door lock switch.
Driv Door Sw (Driver side door switch) (Open / Close): This parameter indicates the state of the driver side door
switch.
Pass Door Sw (Other than driver side door switch) (Open / Close): This parameter indicates the state of the door
switches other than driver side door switch.
Brake Fluid Level (Low / Normal): Low: Brake fluid level is lower than specified level.
Normal: Brake fluid level is higher than MIN level.
Parking Brake Sw (Parking brake switch) (ON / OFF): ON: Parking brake lever is pulled up.
OFF: Parking lever is released
Rear Defogger Sw (Rear end door window defogger switch) (ON / OFF): This parameter indicates the state of
the rear end door window defogger switch.
Tail Light Sw (Lighting switch) (ON / OFF): This parameter indicates the state of the lighting switch.
Driv Seat belt Sw (Driver seat belt switch) (Fasten / Unfasten): This parameter indicates the state of the driver
side seat belt buckle switch.
Charge Light (ON / OFF): This parameter indicates the state of the charge system monitor switch.
Oil pressure switch (ON / OFF): This parameter indicates the state of the oil pressure switch.
A/C Switch (ON / OFF): This parameter indicates the state of the air conditioning switch.
Rear Wiper Sw (Rear wiper switch) (ON / INT / OFF): This parameter indicates the state of the rear wiper switch.
Front Fog Light Sw (Front fog light switch) (ON / OFF): This parameter indicates the state of the front fog light
switch.
Headlight Sw (Headlight switch) (ON / OFF): This parameter indicates the state of the lighting switch.
Diagnosis Using Output Test Function of SUZUKI Scan Tool
SUZUKI scan tool has the output test function which can force operation of following actuators and relays of the
system controlled by BCM. When a malfunction is found in the system controlled by BCM, execute the output test
which enables easy judgment whether the malfunction is on the input side or output side of BCM. For detailed
information on operation of SUZUKI scan tool, refer to “SUZUKI Scan Tool Operator’s Manual”.
Output Test Item
Controlled Parts
Hazard Warning Light
Turn signal and hazard warning relay
Interior (Dome) Light
Interior (Dome) light (when interior light switch is at DOOR position)
Parking/Tail Light
Tail light relay
Front Fog Light
Front fog light relay (when lighting switch is at CLEARANCE position)
Rear defogger
Rear defogger and mirror heater relays
D.R.L.
Headlight low beam relay
Auto on headlight
Headlight low beam and tail light relays
Door
Each door lock actuator
Dead lock
Each door lock actuator
Warning buzzer
Warning buzzer (in BCM)
Rear wiper
Rear wiper relay
Alarm indicator
Theft deterrent light (in HVAC control module)
10B-8 Body Electrical Control System:
DTC Table
S5JB0EA204004
DTC
(displayed on
SUZUKI scan
tool)
DTC (indicated
by theft
deterrent light)
DTC (displayed on
odometer in
combination meter)
Detected item
Detecting condition
NO DTC
0000
0000
—
No DTC detected
)
B1133
1133
b1133
Battery voltage too high
Battery voltage too high
B1141
1141
b1141
Outside air temperature
(ambient temperature)
sensor circuit open
Sensor output voltage too
high
B1142
1142
b1142
Outside air temperature
(ambient temperature)
sensor circuit short to
ground
Sensor output voltage too
low
)
B1150
1150
b1150
Air bag communication
circuit malfunction
Air bag communication
circuit open or short to
ground
)
B1157
1157
b1157
Air bag deployment signal
input
Air bag deployment signal
inputted
)
B1170
1170
b1170
EEPROM access error
Memory error
U1073
1073
U1073
Control module
communication bus off
Transmitting and receiving
error of BCM for specified
time continuously
U1100
1100
U1100
Lost communication with
ECM
Receiving error of BCM from
ECM for specified time
continuously
U1101
1101
U1101
Lost communication with
TCM
Receiving error of BCM from
TCM for specified time
continuously
U1144
1144
U1144
Lost communication with
keyless start control module
Receiving error of BCM from
keyless start control module
for specified time
continuously
Body Electrical Control System: 10B-9
DTC B1141 / B1142 (No. 1141 / No. 1142): Outside Air Temperature (Ambient Temp.) Sensor Circuit
Malfunction
S5JB0EA204009
Wiring Diagram
DTC Detecting Condition and Possible Cause
Flow Test Description
Step 1: Check whether malfunction is in outside air temperature sensor.
Step 2: Check outside air temperature sensor circuit.
DTC Troubleshooting
7
8
9
10
11
12
13
14
15
6
5
4
3
2
1
G32
24
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
G30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
G31
WHT/BLK
BLK/RED
5V
G31-24
G31-21
1
2
2
3
1
I5JB0AA20007-01
1. Outside air temperature sensor
3. Outside air temperature sensor connector
2. BCM
DTC detecting condition
Possible cause
DTC B1141 (DTC No. 1141):
Input signal from outside air temperature sensor is higher
than 4.88 V.
• Open in outside air temperature sensor circuit
• Outside air temperature sensor malfunction
• BCM malfunction
DTC B1142 (DTC No. 1142):
Input signal from outside air temperature sensor is lower
than 0.1 V.
• Short in outside air temperature sensor circuit
• Outside air temperature sensor malfunction
• BCM malfunction
Step
Action
Yes
No
1
Outside air temperature sensor check
1) Turn ignition switch to OFF position.
2) Disconnect connector from outside air temperature
sensor.
3) Check outside air temperature sensor for resistance
referring to “Outside Air Temperature Sensor Inspection
(If Equipped) in Section 9C in related manual”.
Is it in good condition?
Go to Step 2.
Replace outside air
temperature sensor.
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