Suzuki Grand Vitara JB419. Manual — part 7
Engine General Information and Diagnosis: 1A-5
ECM Transmission Data
NOTE
In communication between ECM and combination meter, between ECM and 4WD control module, data
is transmitted only from ECM to combination meter and 4WD control module. (combination meter and
4WD control module does not transmit data to ECM.)
ECM Reception Data
Engine torque signal
Accelerator pedal position
Engine speed
Throttle position
Engine emissions related
malfunction
Injection warning light
(Gravity 1 Fault)
Red Stop Warning Light
(Gravity 2 Fault)
Glow indicator light
Diesel particulate filter warning light
Fuel filter warning light
Engine coolant temperature
Cruise control signal
(if equipped)
Cruise control system
indication (if equipped)
Vehicle speed
Brake pedal switch active
Air conditioning compressor
clutch engaged
(if equipped with A/C)
A/C refrigerant pressure
(if equipped with A/C)
Distance kilometers per
liter of fuel
Additional heater relay signal
Radiator cooling fan relay signal
BCM
Transmits data
of ECM
4WD control
module
(if equipped)
Combination
Meter
ESP® control
module (if equipped)
ABS control
module
(if equipped)
I5JB0B110004-10
BCM
ESP® control
module (if equipped)
Air conditioning switch ON
(if equipped with A/C)
Torque up request
Wheel speed pulse (rear right)
Wheel speed pulse (rear left)
Antilock brake system active
Electronic stability program
system active
ABS control module
(if equipped)
Transmits data of ECM
I5JB0B110005-08
1A-6 Engine General Information and Diagnosis:
Diesel Particulate Filter Regeneration Description
S5JB0B1101006
As Diesel Particulate Filter is a device to trap the diesel particulate (PM), it is necessary that the accumulated PM is
burned and diesel particulate filter regenerated.
There are three ways to regenerate diesel particulate filter.
• “Natural regeneration” by catalysis and exhaust gas temperature
• “Forced regeneration” by post-injection
• “After-sales regeneration” by using SUZUKI scan tool
And, here is the mechanism to regenerate diesel particulate filter.
1. Diesel particulate filter, trapping PM, carries out “Natural regeneration” according to the driving condition. The
driver will not find it.
2. ECM consistently monitors the exhaust gas temperature, injection quantity, driving time, vehicle speed, PM mass
etc. In case of the long-time idling and traffic jam at low speed that cause lowering the exhaust gas temperature,
PM is accumulated gradually.
When “Natural regeneration” becomes insufficient (PM mass exceeds 25 g), ECM will perform “Forced
regeneration” by the post-injection at the point of appropriate driving condition. The post-injection will heat the
exhaust gas temperature to enable “Forced regeneration”. In this situation, any warning indicator will not come on.
Therefore, the driver will not recognize that “Forced regeneration” is performed.
3. If “Forced regeneration” is interrupted by the engine stop, long-time idling and traffic jam at low speed that do not
keep the specified exhaust gas temperature, ECM will memorize it as “Regeneration failure”. When the
“regeneration failure” number (5 times) or PM mass reach at the specified conditions (PM mass exceeds 42 g),
ECM will find it as “impossible to regenerate by diesel particulate filter itself and incapable of continuing the
driving” and ask the driver for a help. This is “Speed request” announced to the driver by diesel particulate filter
warning light (1) in combination meter. Then, the driver will be asked to increase the vehicle speed more than 75
km/h (47 MPH) on the average for heating the exhaust gas temperature. If the regeneration is completed by
“natural regeneration” or “Forced regeneration” when accumulating “regeneration failure”, the accumulation of
“regeneration failure” will be reset.
4. After the driver fulfills “speed request” for the regeneration and PM mass falls to the specified amount (5 ~ 8 g), the
regeneration will complete and diesel particulate filter warning light be turned OFF. It will take about 20 minutes to
complete the regeneration if the regeneration driving is performed properly. During the regeneration driving,
“Forced regeneration” will go simultaneously to hasten the increase of exhaust gas temperature and shorten the
time of regeneration. When the engine stops before diesel particulate filter warning light is turned OFF, PM mass
that should be decreased will be calculated at starting the engine next time. At that time, if PM mass does not fall
to the specified amount, diesel particulate filter warning light will come on again and the vehicle continue to ask the
driver for regeneration driving.
5. If the regeneration driving is not achieved and diesel particulate filter becomes almost clogged while “Speed
request” is on, injection warning light (Gravity 1 Fault) (2) in combination meter will come on. Also, to prevent
diesel particulate filter from melting and cracking, ECM will take following actions;
1) EGR (Exhaust Gas Recirculation) will be cut off to avoid generating the extra PM.
2) “Forced regeneration” function will stop.
3) Driving performance will be limited by lowering the engine torque to avoid “Natural regeneration”.
Therefore, the driver will recognize the malfunction of diesel particulate filter.
In this situation, “After-sales regeneration” using SUZUKI scan tool will be necessary or diesel particulate filter has to
be replaced in the worst case.
2
1
I5JB0B110016-01
Engine General Information and Diagnosis: 1A-7
Schematic and Routing Diagram
Electronic Control System Diagram
S5JB0B1102001
23
2
9
10
11
12
13
14
16
15
4
3
5
6
7
17
8
20
21
22
23
18
36
37
38
39
40
41
55
42
43
44
45
46
47
48
49
50
33
51
54
52
53
19
24
25
26
27
28
29
30
31
32
33
34
35
1
56
I5JB0B110006-04
1. ECM
20. Boost pressure control solenoid valve
39. 4WD control module
1A-8 Engine General Information and Diagnosis:
2. Exhaust gas temperature sensor 3
21. Common rail (High pressure fuel injection
rail)
40. Immobilizer control module
3. Diesel particulate filter
22. Fuel pressure sensor
41. BCM
4. Exhaust gas temperature sensor 2
23. Fuel injector
42. Electric load
5. Oxidation catalytic converter
24. Vacuum pump
43. A/C refrigerant pressure sensor (if equipped with
A/C)
6. Turbocharger
25. CMP sensor
44. Cruise control switch (if equipped with cruise
control system)
7. Boost pressure control valve actuator
26. Glow plug
45. Radiator fan motor relay
8. Exhaust gas temperature sensor 1
27. ECT sensor
46. Additional heater
9. Differential pressure sensor
28. CKP sensor
47. Turbocharger electric water pump
10. Fuel flow actuator
29. EGR valve
48. A/C compressor magnet clutch
11. Injection pump
30. Boost pressure sensor
49. Data link connector
12. Fuel filter
31. Inlet throttle valve
50. Brake lamp
13. Fuel heater
32. Glow plug control module
51. Ignition switch
14. Fuel filter water detection sensor
33. Clutch pedal position (CPP) switch
52. Main relay
15. Priming pump
34. Brake lamp switch
53. Fuel heater relay
16. Fuel pump
35. Accelerator pedal position (APP) sensor
54. Battery
17. MAF sensor assembly with IAT sensor
36. Wheel speed sensor (VSS signal)
55. Barometric pressure sensor
18. Air cleaner
37. ABS or ESP
® control module
56. EGR cooler
19. Intercooler
38. Combination meter
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст