Acura CSX. Manual — part 398
01
SNR9AC7D52100000000BBAT00
System Indicator
ABS Indicator
Brake System Indicator
VSA Indicator
VSA Activation Indicator
19-97
General Troubleshooting Information
A
D
B
C
This system has four indicators:
• ABS indicator (A)
• Brake system indicator (B)
• VSA indicator (C)
• VSA activation indicator (D)
When the system is OK, each indicator comes on for
about 2 seconds after turning the ignition switch to
ON (II), then goes off.
When the system detects a problem, a DTC is set and,
depending upon the failure, the VSA modulator-control
unit determines which indicator(s) are turned on. If the
problem goes away (system returns to normal), the
indicator(s) are controlled in the following way
depending upon the DTC that is set:
• The indicator(s) come on and stay on when the
ignition switch is ON (II).
• The indicator(s) automatically go off.
• The indicator(s) go off after the vehicle is driven.
The ABS indicator comes on when the ABS function is
lost. The brakes still work like a conventional system.
The brake system indicator comes on when the EBD
function is lost, the parking brake is applied, and/or the
brake fluid level is low.
NOTE: If two or more wheel speed sensors fail, the
brake system indicator comes on.
The VSA indicator comes on when the VSA function is
lost.
The VSA activation indicator blinks when the VSA
function is activating. The VSA activation indicator
comes on and stays on when the VSA is turned OFF by
using the VSA OFF switch, or when the VSA function is
lost.
08/08/21 15:04:50 61SNR030_190_0097
Diagnostic Trouble Code (DTC)
Self-diagnosis
Kickback
Pump Motor
Brake Fluid Replacement/Air Bleeding
How to Troubleshoot DTCs
Intermittent Failures
19-98
VSA System Components
• The memory holds all DTCs. However, when the
same DTC is detected more than once, the more
recent DTC is written over the earlier one. Therefore,
when the same problem is detected repeatedly, it is
memorized as a single DTC.
• The DTCs are indicated in the order they occur.
• The DTCs are memorized in the EEPROM. Therefore,
the memorized DTCs cannot be erased by
disconnecting the battery. Do the specified
procedures to clear the DTCs.
• Self-diagnosis can be classified into two categories:
– Initial diagnosis: Done right after the ignition switch
is turned to ON (II) and until the ABS and VSA
indicators go off.
– Regular diagnosis: Done right after the initial
diagnosis until the ignition switch is turned to
LOCK (0).
• When the system detects a problem, the VSA
modulator-control unit shifts to fail-safe mode.
The pump motor operates when the VSA modulator-
control unit is functioning, and the fluid in the reservoir
is forced out to the master cylinder, causing kickback at
the brake pedal.
• The pump motor operates when the VSA modulator-
control unit is functioning.
• The VSA modulator-control unit checks the pump
motor operation one time after completing initial
diagnosis during regular diagnosis when the vehicle
is driven over 15 km/h (10 mph).
Brake fluid replacement and air bleeding procedures
are identical to the procedures used on vehicles without
the VSA system (see page 19-9).
The troubleshooting procedures assume that the cause
of the problem is still present, and the ABS and/or VSA
indicator is still on. Following a troubleshooting
procedure for a code that has been cleared but does not
reset can result in incorrect diagnosis.
1. Question the client about the conditions when the
problem occurred, and try to reproduce the same
conditions for troubleshooting. Find out when the
ABS and/or VSA indicator came on, such as during
activation, after activation, when the vehicle was
traveling at a certain speed, etc. If necessary, have
the client demonstrate the concern.
2. When the ABS or VSA indicator does not come on
during the test-drive, check for loose connectors,
poor contact of the terminals, etc. in the circuit
indicated by the DTC before you start
troubleshooting.
3. After troubleshooting, or the repairs are done, clear
the DTCs, and test-drive the vehicle under the same
conditions that originally set the DTCs. Make sure
the ABS and VSA indicators do not come on.
4. Check for DTCs from other systems which are
connected via F-CAN. If there are DTCs that are
related to F-CAN, one possible cause was that the
ignition switch was turned to ON (II) with the VSA
modulator-control unit connector disconnected.
Clear the DTCs. Check for fuel and emissions DTC’s
first.
NOTE: Always troubleshoot fuel and emissions
DTC’s first.
The term ‘‘intermittent failure’’ means a system may
have had a failure, but it checks OK now. If you cannot
reproduce the condition, check for loose connectors or
terminal pins related to the circuit that you are
troubleshooting.
08/08/21 15:04:50 61SNR030_190_0098
02
How to Use the HDS (Honda Diagnostic
System)
How to Retrieve DTCs
How to Clear DTCs
19-99
A
1. If the system indicators stay on, connect the HDS to
the data link connector (DLC) (A) located under the
driver’s side of the dashboard.
2. Turn the ignition switch to ON (II).
3. Make sure the HDS communicates with the vehicle
and the VSA modulator-control unit. If it doesn’t,
troubleshoot the DLC circuit (see page 11-204).
4. Check the diagnostic trouble code (DTC) for all
systems, troubleshoot the powertrain DTCs first
and note it. Then refer to the indicated DTC’s
troubleshooting, and do the appropriate
troubleshooting procedure.
NOTE:
• The HDS communication stops when the vehicle
speed is at 50 km/h (31 mph) or more.
• The HDS reads the DTC, current data, and other
system data.
• For specific operations, refer to the Help menu
that came with the HDS.
1. With the ignition switch in LOCK (0), connect the
HDS to the data link connector (DLC) under the
driver’s side of the dashboard.
2. Turn the ignition switch to ON (II).
3. Make sure the HDS communicates with the vehicle
and the VSA modulator-control unit. If it doesn’t
troubleshoot the DLC circuit (see page 11-204).
4. Follow the prompts on the HDS to display the
DTC(s) on the screen. After determining the DTC,
refer to the DTC troubleshooting. Do the all
systems DTC check, and troubleshoot any
powertrain DTCs first.
5. Turn the ignition switch to LOCK (0).
1. With the ignition switch in LOCK (0), connect the
HDS to the data link connector (DLC) under the
driver’s side of the dashboard.
2. Turn the ignition switch to ON (II).
3. Make sure the HDS communicates with the vehicle
and the VSA modulator-control unit. If it doesn’t
troubleshoot the DLC circuit (see page 11-204).
4. Clear the DTC(s) by following the screen prompts
on the HDS.
5. Turn the ignition switch to LOCK (0).
08/08/21 15:04:51 61SNR030_190_0099
SNR9AC7D52100000000GAAT00
DTC
Detection Item
ABS
Indicator
Brake
System
Indicator
VSA
Indicator
VSA
Activation
Indicator
Note
19-100
VSA System Components
DTC Troubleshooting Index
11
-13
Right-front Wheel Speed Sensor Circuit Malfunction
ON
ON/OFF
ON
ON
(see page 19-117)
12
-11
Right-front Wheel Speed Sensor Electrical Noise or
Intermittent Interruption
ON
ON/OFF
ON
ON
(see page 19-120)
-12
Right-front Wheel Speed Sensor Short to the Other
Sensor Circuit
ON
ON/OFF
ON
ON
(see page 19-121)
-21
Right-front Wheel Speed Sensor Installation Error
ON
ON/OFF
ON
ON
(see page 19-123)
-22
Right-front Wheel Speed Sensor Installation Error
(30 km/h (19 mph) or More)
ON
ON/OFF
ON
ON
(see page 19-124)
-23
Right-front Wheel Speed Sensor Installation Error
(0 to 15 km/h (0 to 9 mph))
ON
ON/OFF
ON
ON
(see page 19-124)
13
-13
Left-front Wheel Speed Sensor Circuit Malfunction
ON
ON/OFF
ON
ON
(see page 19-117)
14
-11
Left-front Wheel Speed Sensor Electrical Noise or
Intermittent Interruption
ON
ON/OFF
ON
ON
(see page 19-120)
-12
Left-front Wheel Speed Sensor Short to the Other
Sensor Circuit
ON
ON/OFF
ON
ON
(see page 19-121)
-21
Left-front Wheel Speed Sensor Installation Error
ON
ON/OFF
ON
ON
(see page 19-123)
-22
Left-front Wheel Speed Sensor Installation Error
(30 km/h (19 mph) or More)
ON
ON/OFF
ON
ON
(see page 19-124)
-23
Left-front Wheel Speed Sensor Installation Error
(0 to 15 km/h (0 to 9 mph))
ON
ON/OFF
ON
ON
(see page 19-124)
15
-13
Right-rear Wheel Speed Sensor Circuit Malfunction
ON
ON/OFF
ON
ON
(see page 19-117)
16
-11
Right-rear Wheel Speed Sensor Electrical Noise or
Intermittent Interruption
ON
ON/OFF
ON
ON
(see page 19-120)
-12
Right-rear Wheel Speed Sensor Short to the Other
Sensor Circuit
ON
ON/OFF
ON
ON
(see page 19-121)
-21
Right-rear Wheel Speed Sensor Installation Error
ON
ON/OFF
ON
ON
(see page 19-123)
-22
Right-rear Wheel Speed Sensor Installation Error
(30 km/h (19 mph) or More)
ON
ON/OFF
ON
ON
(see page 19-124)
-23
Right-rear Wheel Speed Sensor Installation Error
(0 to 15 km/h (0 to 9 mph))
ON
ON/OFF
ON
ON
(see page 19-124)
17
-13
Left-rear Wheel Speed Sensor Circuit Malfunction
ON
ON/OFF
ON
ON
(see page 19-117)
18
-11
Left-rear Wheel Speed Sensor Electrical Noise or
Intermittent Interruption
ON
ON/OFF
ON
ON
(see page 19-120)
-12
Left-rear Wheel Speed Sensor Short to the Other
Sensor Circuit
ON
ON/OFF
ON
ON
(see page 19-121)
-21
Left-rear Wheel Speed Sensor Installation Error
ON
ON/OFF
ON
ON
(see page 19-123)
-22
Left-rear Wheel Speed Sensor Installation Error
(30 km/h (19 mph) or More)
ON
ON/OFF
ON
ON
(see page 19-124)
-23
Left-rear Wheel Speed Sensor Installation Error
(0 to 15 km/h (0 to 9 mph))
ON
ON/OFF
ON
ON
(see page 19-124)
21
-11
Right-front Magnetic Encoder (Wheel Bearing)
Malfunction (Pulse Missing)
ON
ON/OFF
ON
ON
(see page 19-125)
22
-11
Left-front Magnetic Encoder (Wheel Bearing)
Malfunction (Pulse Missing)
ON
ON/OFF
ON
ON
(see page 19-125)
23
-11
Right-rear Magnetic Encoder (Wheel Bearing)
Malfunction (Pulse Missing)
ON
ON/OFF
ON
ON
(see page 19-125)
24
-11
Left-rear Magnetic Encoder (Wheel Bearing)
Malfunction (Pulse Missing)
ON
ON/OFF
ON
ON
(see page 19-125)
1: Brake system indicator turns ON when two or more wheels fail.
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
08/08/21 15:04:51 61SNR030_190_0100
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст