2006 ACURA CSX brake

Diagnostic Trouble Code (DTC)
Self-diagnosis
Kickback
Pump Motor
Brake Fluid Replacement/Air BleedingHow to Troubleshoot DTCs
Intermittent Failures
19-98
VSA System Components
General Troubleshooting Information (cont’d)
 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
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DTCDetection Item ABS
Indicator Brake
System
Indicator VSA
Indicator VSA
Activation Indicator Note
19-100VSA 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
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1
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DTCDetection Item ABS
Indicator Brake
System
Indicator VSA
Indicator VSA
Activation Indicator Note
19-101
25 Yaw Rate Sensor Internal Circuit Malfunction
(Initial) OFF OFF ON ON (see page 19-126)
-12 Yaw Rate Sensor Internal Circuit Malfunction (Open, Short) OFF OFF ON ON (see page 19-126)
-13 Yaw Rate Sensor Communication Error OFF OFF ON ON (see page 19-126) Yaw Rate/Lateral Acceleration Sensor Circuit High
Voltage OFF OFF ON ON (see page 19-127)
Yaw Rate/Lateral Acceleration Sensor Circuit Low
Voltage OFF OFF ON ON (see page 19-127)
Yaw Rate/Lateral Acceleration Sensor Internal
Circuit Malfunction (Keep Alive Memory (KAM)
Error) OFF OFF ON ON (see page 19-126)
Yaw Rate/Lateral Acceleration Sensor Power
Source Voltage Malfunction OFF OFF ON ON (see page 19-127)
Yaw Rate/Lateral Acceleration Sensor Internal
Circuit Malfunction OFF OFF ON ON (see page 19-126)
Yaw Rate/Lateral Acceleration Sensor Startup Time
Malfunction OFF OFF ON ON (see page 19-127)
-21 Yaw Rate Sensor Neutral Position Malfunction OFF OFF ON ON (see page 19-126)
-22 Yaw Rate Sensor Stuck OFF OFF ON ON (see page 19-128)
-23 Yaw Rate Sensor Circuit Intermittent Interruption OFF OFF ON ON (see page 19-127)
-24 Yaw Rate Sensor Gain Low OFF OFF ON ON (see page 19-128)
-25 Yaw Rate Sensor Gain High OFF OFF ON ON (see page 19-128)
26 Lateral Acceleration Sensor Internal Circuit Malfunction (Initial) OFF OFF ON ON (see page 19-126)
-12 Lateral Acceleration Sensor Internal Circuit Malfunction (Open, Short) OFF OFF ON ON (see page 19-126)
-13 Lateral Acceleration Sensor Communication Error OFF OFF ON ON (see page 19-126)
-21 Lateral Acceleration Sensor Neutral Position Malfunction OFF OFF ON ON (see page 19-129)
-22 Lateral Acceleration Sensor Stuck OFF OFF ON ON (see page 19-129)
-23 Lateral Acceleration Sensor Circuit Intermittent Interruption OFF OFF ON ON (see page 19-129)
-24 Lateral Acceleration Sensor Gain Low OFF OFF ON ON (see page 19-128)
-25 Lateral Acceleration Sensor Gain High OFF OFF ON ON (see page 19-128)
27 -11 Steering Angle Sensor DIAG Signal Error (Initial) OFF OFF ON ON (see page 19-130) -21 Steering Angle Sensor Stuck Neutral Position OFF OFF ON ON (see page 19-132)
-22 Steering Angle Sensor Stuck Offset Position OFF OFF ON ON (see page 19-132)
-23 Steering Angle Sensor Counter Malfunction OFF OFF ON ON (see page 19-135)
-24 Steering Angle Sensor Exchange Malfunction OFF OFF ON ON (see page 19-135)
-26 Steering Angle Sensor DIAG Signal Error (Main) OFF OFF ON ON (see page 19-130)
31 -01 ABS Right-front Inlet Solenoid Valve Malfunction (Solenoid Initial Pulse) ON ON ON ON (see page 19-136)
-21 ABS Right-front Inlet Solenoid Valve Malfunction (Solenoid Pulse) ON ON ON ON (see page 19-136)
-22 ABS Right-front Inlet Solenoid Valve Malfunction (Solenoid Speculative) ON ON ON ON (see page 19-136)
-23 ABS Right-front Inlet Solenoid Valve Malfunction (Solenoid Stuck ON) ON ON ON ON (see page 19-136)
32 -01 ABS Right-front Outlet Solenoid Valve Malfunction (Solenoid Initial Pulse) ON ON ON ON (see page 19-136)
-21 ABS Right-front Outlet Solenoid Valve Malfunction (Solenoid Pulse) ON ON ON ON (see page 19-136)
-22 ABS Right-front Outlet Solenoid Valve Malfunction (Solenoid Speculative) ON ON ON ON (see page 19-136)
-23 ABS Right-front Outlet Solenoid Valve Malfunction (Solenoid Stuck ON) ON ON ON ON (see page 19-136)
2: ’07-08 models
3: ’09 model
(cont’d)-11
-14
-15
-16
-17
-18
-19
-112
2
2
2
3
3
3
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DTCDetection Item ABS
Indicator Brake
System
Indicator VSA
Indicator VSA
Activation Indicator Note
19-102VSA System Components
DTC Troubleshooting Index (cont’d)
33 -01 ABS Left-front Inlet Solenoid Valve Malfunction
(Solenoid Initial Pulse) ON ON ON ON (see page 19-136)
-21 ABS Left-front Inlet Solenoid Valve Malfunction (Solenoid Pulse) ON ON ON ON (see page 19-136)
-22 ABS Left-front Inlet Solenoid Valve Malfunction (Solenoid Speculative) ON ON ON ON (see page 19-136)
-23 ABS Left-front Inlet Solenoid Valve Malfunction (Solenoid Stuck ON) ON ON ON ON (see page 19-136)
34 -01 ABS Left-front Outlet Solenoid Valve Malfunction (Solenoid Initial Pulse) ON ON ON ON (see page 19-136)
-21 ABS Left-front Outlet Solenoid Valve Malfunction (Solenoid Pulse) ON ON ON ON (see page 19-136)
-22 ABS Left-front Outlet Solenoid Valve Malfunction (Solenoid Speculative) ON ON ON ON (see page 19-136)
-23 ABS Left-front Outlet Solenoid Valve Malfunction (Solenoid Stuck ON) ON ON ON ON (see page 19-136)
35 -01 ABS Right-rear Inlet Solenoid Valve Malfunction (Solenoid Initial Pulse) ON ON ON ON (see page 19-136)
-21 ABS Right-rear Inlet Solenoid Valve Malfunction (Solenoid Pulse) ON ON ON ON (see page 19-136)
-22 ABS Right-rear Inlet Solenoid Valve Malfunction (Solenoid Speculative) ON ON ON ON (see page 19-136)
-23 ABS Right-rear Inlet Solenoid Valve Malfunction (Solenoid Stuck ON) ON ON ON ON (see page 19-136)
36 -01 ABS Right-rear Outlet Solenoid Valve Malfunction (Solenoid Initial Pulse) ON ON ON ON (see page 19-136)
-21 ABS Right-rear Outlet Solenoid Valve Malfunction (Solenoid Pulse) ON ON ON ON (see page 19-136)
-22 ABS Right-rear Outlet Solenoid Valve Malfunction (Solenoid Speculative) ON ON ON ON (see page 19-136)
-23 ABS Right-rear Outlet Solenoid Valve Malfunction (Solenoid Stuck ON) ON ON ON ON (see page 19-136)
37 -01 ABS Left-rear Inlet Solenoid Valve Malfunction (Solenoid Initial Pulse) ON ON ON ON (see page 19-136)
-21 ABS Left-rear Inlet Solenoid Valve Malfunction (Solenoid Pulse) ON ON ON ON (see page 19-136)
-22 ABS Left-rear Inlet Solenoid Valve Malfunction (Solenoid Speculative) ON ON ON ON (see page 19-136)
-23 ABS Left-rear Inlet Solenoid Valve Malfunction (Solenoid Stuck ON) ON ON ON ON (see page 19-136)
38 -01 ABS Left-rear Outlet Solenoid Valve Malfunction (Solenoid Initial Pulse) ON ON ON ON (see page 19-136)
-21 ABS Left-rear Outlet Solenoid Valve Malfunction (Solenoid Pulse) ON ON ON ON (see page 19-136)
-22 ABS Left-rear Outlet Solenoid Valve Malfunction (Solenoid Speculative) ON ON ON ON (see page 19-136)
-23 ABS Left-rear Outlet Solenoid Valve Malfunction (Solenoid Stuck ON) ON ON ON ON (see page 19-136)
41 -21 Right-front Wheel Lock ON ON/OFF ON ON (see page 19-137)
42 -21 Left-front Wheel Lock ON ON/OFF ON ON (see page 19-137)
43 -21 Right-rear Wheel Lock ON ON/OFF ON ON (see page 19-137)
44 -21 Left-rear Wheel Lock ON ON/OFF ON ON (see page 19-137)
51 -11 Motor Lock ON OFF ON ON (see page 19-138) -12 Motor Lock Circuit Malfunction ON OFF ON ON (see page 19-138)
-13 Motor Relay OFF Malfunction ON OFF ON ON (see page 19-138)
52 -12 Motor Stuck OFF ON OFF ON ON (see page 19-140)
53 -01 Motor Relay Stuck ON 1 ON OFF ON ON (see page 19-141) -12 Motor Relay Stuck ON 2 ON OFF ON ON (see page 19-141)
54 -03 Fail-safe Relay 1 Stuck ON ON ON ON ON (see page 19-142) -04 Fail-safe Relay 1 Stuck OFF (Initial) ON ON ON ON (see page 19-142)
-21 Fail-safe Relay 1 Stuck OFF (Main) ON ON ON ON (see page 19-142)
56 -01 Initial VIG FET Stuck OFF ON ON ON ON (see page 19-142) -02 Initial VIG FET Stuck ON ON ON ON ON (see page 19-142)
-11 VIG FET Stuck OFF ON ON ON ON (see page 19-142)
1: Brake system indicator turns ON when two or more wheels fail.
1
1
1
1
08/08/21 15:04:51 61SNR030_190_0102
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DTCDetection Item ABS
Indicator Brake
System
Indicator VSA
Indicator VSA
Activation Indicator Note
19-103
61 -01 VSA Modulator-control Unit Initial IG Low Voltage ON ON ON ON (see page 19-143)
-21 VSA Modulator-control Unit Power Source LowVoltage 1 ON ON ON ON (see page 19-143)
-22 VSA Modulator-control Unit Power Source Low Voltage 2 ON OFF ON ON (see page 19-143)
-23 VSA Modulator-control Unit Power Source Low Voltage 3 ON ON ON ON (see page 19-143)
62 -21 VSA Modulator-control Unit IG High Voltage ON ON ON ON (see page 19-144)
64 -11 Steering Angle Sensor Power Circuit Short OFF OFF ON ON (see page 19-144) -12 Steering Angle Sensor Power Circuit Open OFF OFF ON ON (see page 19-145)
65 -21 Brake Fluid Level Stuck ON OFF OFF ON ON (see page 19-147)
66 -11 Pressure Sensor (Inside of VSA Modulator-control Unit) Malfunction OFF OFF ON ON (see page 19-148)
-12 Pressure Sensor (Inside of VSA Modulator-control Unit) Malfunction OFF OFF ON ON (see page 19-148)
-13 Pressure Sensor (Inside of VSA Modulator-control Unit) Malfunction OFF OFF ON ON (see page 19-148)
-14 Pressure Sensor (Inside of VSA Modulator-control Unit) Malfunction OFF OFF ON ON (see page 19-148)
-15 Pressure Sensor (Inside of VSA Modulator-control Unit) Malfunction OFF OFF ON ON (see page 19-149)
-16 Pressure Sensor (Inside of VSA Modulator-control Unit) Malfunction OFF OFF ON ON (see page 19-148)
68 -21 Brake Pedal Position Switch Stuck OFF OFF OFF ON ON (see page 19-149) -22 Brake Pedal Position Switch Stuck ON OFF OFF ON ON (see page 19-151)
71 -21 Right-front or Left-rear Different Diameter Tire Malfunction ON ON ON ON (see page 19-152)
-22 Left-front or Right-rear Different Diameter Tire Malfunction ON ON ON ON (see page 19-152)
-23 Right-front and Right-rear Different Diameter Tire Malfunction ON ON ON ON (see page 19-152)
-24 Left-front and Left-rear Different Diameter Tire Malfunction ON ON ON ON (see page 19-152)
-25 Right-front and Left-front Different Diameter Tire Malfunction ON ON ON ON (see page 19-152)
-26 Right-rear and Left-rear Different Diameter Tire Malfunction ON ON ON ON (see page 19-152)
-27 Right-front or Left-rear Different Diameter Tire Malfunction OFF OFF ON ON (see page 19-152)
-28 Left-front or Right-rear Different Diameter Tire Malfunction OFF OFF ON ON (see page 19-152)
-29 Right-front and Right-rear Different Diameter Tire Malfunction OFF OFF ON ON (see page 19-152)
-2A Left-front and Left-rear Different Diameter Tire Malfunction OFF OFF ON ON (see page 19-152)
-2B Right-front and Left-front Different Diameter Tire Malfunction OFF OFF ON ON (see page 19-152)
-2C Right-rear and Left-rear Different Diameter Tire Malfunction OFF OFF ON ON (see page 19-152)
81 -01 ON ON ON ON (see page 19-153) -02 ON ON ON ON (see page 19-153)
-03 ON ON ON ON (see page 19-153)
-05 ON ON ON ON (see page 19-153)
-06 ON ON ON ON (see page 19-153)
-07 ON ON ON ON (see page 19-153)
-08 ON ON ON ON (see page 19-153)
-11 ON ON ON ON (see page 19-153)
-12 ON ON ON ON (see page 19-153)
-13 ON ON ON ON (see page 19-153)
-14 ON ON ON ON (see page 19-153)
-21 ON ON ON ON (see page 19-153)
-22 ON ON ON ON (see page 19-153)
-23 ON ON ON ON (see page 19-153)
(cont’d)
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
08/08/21 15:04:52 61SNR030_190_0103
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DTCDetection Item ABS
Indicator Brake
System
Indicator VSA
Indicator VSA
Activation Indicator Note
19-104VSA System Components
DTC Troubleshooting Index (cont’d)
81 -31
ON ON ON ON (see page 19-153)
-32 ON ON ON ON (see page 19-153)
-33 ON ON ON ON (see page 19-153)
-35 ON ON ON ON (see page 19-153)
-36 ON ON ON ON (see page 19-153)
-37 ON ON ON ON (see page 19-153)
-38 ON ON ON ON (see page 19-153)
-39 ON ON ON ON (see page 19-153)
-3A ON ON ON ON (see page 19-153)
-3C ON ON ON ON (see page 19-153)
-3D ON ON ON ON (see page 19-155)
-3E ON ON ON ON (see page 19-155)
-40 ON ON ON ON (see page 19-153)
-41 ON ON ON ON (see page 19-153)
-42 ON ON ON ON (see page 19-153)
-51 ON ON ON ON (see page 19-154)
-52 ON ON ON ON (see page 19-153)
-53 ON ON ON ON (see page 19-154)
-54 ON ON ON ON (see page 19-153)
-55 ON ON ON ON (see page 19-154)
-56 ON ON ON ON (see page 19-153)
-57 ON ON ON ON (see page 19-154)
-58 ON ON ON ON (see page 19-153)
-59 ON ON ON ON (see page 19-155)
-61 ON ON ON ON (see page 19-153)
-71 ON OFF ON ON (see page 19-153)
-80 ON ON ON ON (see page 19-153)
83 -13 ECM/PCM Communication Error OFF OFF ON ON (see page 19-155)
-14 ECM/PCM Communication Error OFF OFF ON ON (see page 19-155)
84 -21 VSA Sensor Neutral Position Not Writing OFF OFF ON ON (see page 19-156)
86 -01 F-CAN Bus-off Malfunction OFF OFF ON ON (see page 19-156)
-11 F-CAN Communication with ECM/PCM Malfunction OFF OFF ON ON (see page 19-157)
-21 F-CAN Communication with Engine Malfunction OFF OFF ON ON (see page 19-157)
-22 F-CAN Communication with Engine Malfunction OFF OFF ON ON (see page 19-157)
-23 F-CAN Communication with Engine Malfunction OFF OFF ON ON (see page 19-157)
-24 F-CAN Communication with Engine Malfunction OFF OFF ON ON (see page 19-157)
-25 F-CAN Communication with Engine Malfunction OFF OFF ON ON (see page 19-157)
-31 F-CAN Communication with Gauge Control Module Malfunction OFF OFF ON ON (see page 19-159)
F-CAN Communication with EAT Malfunction OFF OFF ON ON (see page 19-157)
-71 F-CAN Communication with Yaw Rate-Lateral Acceleration Sensor Malfunction OFF OFF ON ON (see page 19-160)
107 -22 Central Processing Unit (CPU) Internal Circuit Malfunction OFF OFF OFF ON (see page 19-162)
108 -21 Steering Angle Sensor Malfunction OFF OFF OFF ON (see page 19-162)
112 -01 Central Processing Unit (CPU) Internal Circuit Malfunction ON ON ON ON (see page 19-163)
121 -01 VSA Solenoid Valve Malfunction ON ON ON ON (see page 19-164)
-02 VSA Solenoid Valve Malfunction ON ON ON ON (see page 19-164)
-11 VSA Solenoid Valve Malfunction ON ON ON ON (see page 19-164)
-21 VSA Solenoid Valve Malfunction ON ON ON ON (see page 19-164)
-24 VSA Solenoid Valve Malfunction ON ON ON ON (see page 19-164)
122 -01 VSA Solenoid Valve Malfunction ON ON ON ON (see page 19-164)
-21 VSA Solenoid Valve Malfunction ON ON ON ON (see page 19-164)
-22 VSA Solenoid Valve Malfunction ON ON ON ON (see page 19-164)
-23 VSA Solenoid Valve Malfunction ON ON ON ON (see page 19-164)
123 -01 VSA Solenoid Valve Malfunction ON ON ON ON (see page 19-164)
-02 VSA Solenoid Valve Malfunction ON ON ON ON (see page 19-164)
-11 VSA Solenoid Valve Malfunction ON ON ON ON (see page 19-164)
-21 VSA Solenoid Valve Malfunction ON ON ON ON (see page 19-164)
-24 VSA Solenoid Valve Malfunction ON ON ON ON (see page 19-164)
124 -01 VSA Solenoid Valve Malfunction ON ON ON ON (see page 19-164)
-21 VSA Solenoid Valve Malfunction ON ON ON ON (see page 19-164)
-22 VSA Solenoid Valve Malfunction ON ON ON ON (see page 19-164)
-23 VSA Solenoid Valve Malfunction ON ON ON ON (see page 19-164)
4: A/TCentral Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
Central Processing Unit (CPU) Internal Circuit Malfunction
-414
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Symptom Diagnostic procedure
19-105
Symptom Troubleshooting Index
When the vehicle has one of these symptoms, check for VSA diagnostic trouble codes (DTCs) with the HDS. If there
are no DTCs, do the diagnostic procedure for the symptom, in the sequence listed, until you find the cause.
HDS does not communicate with the VSA modulator-
control unit or the vehicle Troubleshoot the DLC circuit (see page 11-204).
VSA activation indicator does not come on at start-up
(bulb check) 1.
2.Do the gauge control module troubleshooting
(see page 22-241).
Substitute a known-good VSA modulator-control unit,
then recheck. If it is OK, replace the original VSA
modulator-control unit (see page 19-171).
VSA activation indicator does not go off, and no DTCs
are stored 1.
2.Symptom Troubleshooting (see page 19-165).
Substitute a known-good VSA modulator-control unit,
then recheck. If it is OK, replace the original VSA
modulator-control unit (see page 19-171).
ABS indicator, brake system indicator, and VSA
indicator do not come on 1.
2.Do the gauge control module troubleshooting
(see page 22-241).
Substitute a known-good VSA modulator-control unit,
then recheck. If it is OK, replace the original VSA
modulator-control unit (see page 19-171).
ABS indicator, brake system indicator, and VSA
indicator do not go off 1.
2.
3.Check for F-CAN DTCs, and troubleshoot and repair
those first.
Do the gauge control module troubleshooting
(see page 22-241).
Symptom Troubleshooting (see page 19-166).
08/08/21 15:04:52 61SNR030_190_0105
ProCarManuals.com
DYNOMITE -2009-

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System Outline
19-108VSA System Components
System Description (cont’d)
CONTROL UNIT
MODULATOR UNIT VSA MODULATOR-
CONTROL UNIT
Brake pressure
signal
 Solenoid control
 Motor control
Communication via F-CAN
VSA
OFF
SWITCH
PARKING
BRAKE
SWITCH BRAKE
FLUID
LEVEL
SWITCH
WHEEL SPEED SENSOR
 Engine torque control request
 Control mode signal
 VSA control enable/disable
 Throttle open angle signal
 Engine revolution signal
 Brake pedal
position switch signal
 Service check signal
 Gear position signal
Wheel rotation
pulse signal
ECM/PCM
BRAKE
PEDAL
POSITION
SWITCH
GAUGE CONTROL MODULE (TACH)
YAW RATE-LATERAL
ACCELERATION
SENSORSTEERING ANGLE
SENSOR
VSAOFFswitchsignal
 Parking brake switch signal
 Brake fluid level switch signal
 Yaw rate signal
 Lateral acceleration signal Steering angle signal
 Indicator drive signal
 Buzzer request signal*
*: ’09 model
This system is composed of the VSA modulator-control unit, the wheel speed sensors, the steering angle sensor, the
yaw rate-lateral acceleration sensor, and the system indicators in the gauge control module (tach). The VSA
modulator-control unit controls the ABS, EBD, TCS, VSA, and brake assist with the brake pressure of each wheel and
reduces engine torque.
08/08/21 15:04:53 61SNR030_190_0108
ProCarManuals.com
DYNOMITE -2009-