ACURA CSX 2006 Service Repair Manual

Î
(#'
)

19-48ABS Components
Component Location Index
UNDER-HOOD FUSE/RELAY BOX
UNDER-DASH FUSE/RELAY BOXRIGHT-REAR WHEEL SPEED SENSOR
ABS MODULATOR-CONTROL UNIT LEFT-FRONT WHEEL SPEED SENSOR
WHEEL BEARING
(MAGNETIC ENCODER)
RIGHT-FRONT WHEEL SPEED SENSOR
WHEEL BEARING
(MAGNETIC ENCODER)
DATA LINK CONNECTOR (DLC)
HUB BEARING UNIT
(MAGNETIC ENCODER)
LEFT-REAR WHEEL SPEED SENSOR
HUB BEARING UNIT
(MAGNETIC ENCODER)
Replacement, page 19-93
Removal and Installation, page 19-90
Replacement, page 19-92
Replacement, page 18-18
Replacement, page 19-92
Replacement, page 18-18 Replacement, page 18-32
Replacement, page 19-93
Replacement, page 18-32
08/08/21 15:02:15 61SNR030_190_0048
ProCarManuals.com
DYNOMITE -2009-


(#'
)

System IndicatorABS Indicator
Brake System Indicator
19-49
General Troubleshooting Information
AB
This system has two indicators: ABS indicator (A)
 Brake system indicator (B)
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 ABS 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.
(cont’d)
08/08/21 15:02:15 61SNR030_190_0049
ProCarManuals.com
DYNOMITE -2009-

Diagnostic Trouble Code (DTC)
Self-diagnosis
Kickback
Pump Motor
Brake Fluid Replacement/Air BleedingHow to Troubleshoot DTCs
Intermittent Failures
19-50
ABS 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 indicator goes
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 ABS modulator-control unit shifts to fail-safe mode.
The pump motor operates when the ABS 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 ABS modulator- control unit is functioning.
 The ABS 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
ABS (see page 19-9). The troubleshooting procedures assume that the cause
of the problem is still present, and the ABS 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 indicator came on, such as during activation,
after activation, when the vehicle was traveling at a
certainspeed,etc.Ifnecessary,havetheclient
demonstrate the concern.
2. When the ABS 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 indicator does 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 ABS
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 15:02:15 61SNR030_190_0050
ProCarManuals.com
DYNOMITE -2009-


How to Use the HDS (Honda Diagnostic
System)How to Retrieve DTCs
How to Clear DTCs
19-51
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 ABS 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 can read the DTC, the 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 ABS 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 ABS 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 15:02:15 61SNR030_190_0051
ProCarManuals.com
DYNOMITE -2009-

(#'
)

DTCDetection Item ABS Indicator Brake System
Indicator Note
19-52ABS Components
DTC Troubleshooting Index
11 -13 Right-front Wheel Speed Sensor Circuit Malfunction
ONON/OFF (see page 19-65)
12 -11 Right-front Wheel Speed Sensor Electrical Noise or Intermittent Interruption ON
ON/OFF (see page 19-68)
-12 Right-front Wheel Speed Sensor Short to the Other Sensor Circuit ONON/OFF (see page 19-69)
-21 Right-front Wheel Speed Sensor Installation Error ONON/OFF (see page 19-71)
-22 Right-front Wheel Speed Sensor Installation Error (30 km/h (19 mph) or More) ON
ON/OFF (see page 19-71)
-23 Right-front Wheel Speed Sensor Installation Error (0 to 15 km/h (0 to 9 mph) ) ON
ON/OFF (see page 19-72)
13 -13 Left-front Wheel Speed Sensor Circuit Malfunction ONON/OFF (see page 19-65)
14 -11 Left-front Wheel Speed Sensor Electrical Noise or Intermittent Interruption ON
ON/OFF (see page 19-68)
-12 Left-front Wheel Speed Sensor Short to the Other Sensor Circuit ONON/OFF (see page 19-69)
-21 Left-front Wheel Speed Sensor Installation Error ONON/OFF (see page 19-71)
-22 Left-front Wheel Speed Sensor Installation Error (30 km/h (19 mph) or More) ON
ON/OFF (see page 19-71)
-23 Left-front Wheel Speed Sensor Installation Error (0 to 15 km/h (0 to 9 mph) ) ON
ON/OFF (see page 19-72)
15 -13 Right-rear Wheel Speed Sensor Circuit Malfunction ONON/OFF (see page 19-65)
16 -11 Right-rear Wheel Speed Sensor Electrical Noise or Intermittent Interruption ON
ON/OFF (see page 19-68)
-12 Right-rear Wheel Speed Sensor Short to the Other Sensor Circuit ONON/OFF (see page 19-69)
-21 Right-rear Wheel Speed Sensor Installation Error ONON/OFF (see page 19-71)
-22 Right-rear Wheel Speed Sensor Installation Error (30 km/h (19 mph) or More) ON
ON/OFF (see page 19-71)
-23 Right-rear Wheel Speed Sensor Installation Error (0 to 15 km/h (0 to 9 mph) ) ON
ON/OFF (see page 19-72)
17 -13 Left-rear Wheel Speed Sensor Circuit Malfunction ONON/OFF (see page 19-65)
18 -11 Left-rear Wheel Speed Sensor Electrical Noise or Intermittent Interruption ON
ON/OFF (see page 19-68)
-12 Left-rear Wheel Speed Sensor Short to the Other Sensor Circuit ONON/OFF (see page 19-69)
-21 Left-rear Wheel Speed Sensor Installation Error ONON/OFF (see page 19-71)
-22 Left-rear Wheel Speed Sensor Installation Error (30 km/h (19 mph) or More) ON
ON/OFF (see page 19-71)
-23 Left-rear Wheel Speed Sensor Installation Error (0 to 15 km/h (0 to 9 mph) ) ON
ON/OFF (see page 19-72)
21 -11 Right-front Magnetic Encoder (Wheel Bearing) Malfunction (Pulse Missing) ON
ON/OFF (see page 19-72)
22 -11 Left-front Magnetic Encoder (Wheel Bearing) Malfunction (Pulse Missing) ON
ON/OFF (see page 19-72)
23 -11 Right-rear Magnetic Encoder (Wheel Bearing) Malfunction (Pulse Missing) ON
ON/OFF (see page 19-72)
24 -11 Left-rear Magnetic Encoder (Wheel Bearing) Malfunction (Pulse Missing) ON
ON/OFF (see page 19-72)
31 -01 ABS Right-front Inlet Solenoid Valve Malfunction (Solenoid Initial Pulse) ON
ON (see page 19-73)
-21 ABS Right-front Inlet Solenoid Valve Malfunction (Solenoid Pulse) ON
ON (see page 19-73)
-22 ABS Right-front Inlet Solenoid Valve Malfunction (Solenoid Speculative) ON
ON (see page 19-73)
-23 ABS Right-front Inlet Solenoid Valve Malfunction (Solenoid Stuck ON) ON
ON (see page 19-73)
32 -01 ABS Right-front Outlet Solenoid Valve Malfunction (Solenoid Initial Pulse) ON
ON (see page 19-73)
-21 ABS Right-front Outlet Solenoid Valve Malfunction (Solenoid Pulse) ON
ON (see page 19-73)
-22 ABS Right-front Outlet Solenoid Valve Malfunction (Solenoid Speculative) ON
ON (see page 19-73)
-23 ABS Right-front Outlet Solenoid Valve Malfunction (Solenoid Stuck ON) ON
ON (see page 19-73)
33 -01 ABS Left-front Inlet Solenoid Valve Malfunction (Solenoid Initial Pulse) ON
ON (see page 19-73)
-21 ABS Left-front Inlet Solenoid Valve Malfunction (Solenoid Pulse) ON
ON (see page 19-73)
-22 ABS Left-front Inlet Solenoid Valve Malfunction (Solenoid Speculative) ON
ON (see page 19-73)
-23 ABS Left-front Inlet Solenoid Valve Malfunction (Solenoid Stuck ON) ON
ON (see page 19-73)
: Brake system indicator turns ON when two or more wheels fail.
08/08/21 15:02:16 61SNR030_190_0052
ProCarManuals.com
DYNOMITE -2009-

DTCDetection Item ABS Indicator Brake System
Indicator Note
19-53
34 -01 ABS Left-front Outlet Solenoid Valve Malfunction
(Solenoid Initial Pulse) ON ON (see page 19-73)
-21 ABS Left-front Outlet Solenoid Valve Malfunction (Solenoid Pulse) ON ON (see page 19-73)
-22 ABS Left-front Outlet Solenoid Valve Malfunction (Solenoid Speculative) ON ON (see page 19-73)
-23 ABS Left-front Outlet Solenoid Valve Malfunction (Solenoid Stuck ON) ON ON (see page 19-73)
35 -01 ABS Right-rear Inlet Solenoid Valve Malfunction (Solenoid Initial Pulse) ON ON (see page 19-73)
-21 ABS Right-rear Inlet Solenoid Valve Malfunction (Solenoid Pulse) ON ON (see page 19-73)
-22 ABS Right-rear Inlet Solenoid Valve Malfunction (Solenoid Speculative) ON ON (see page 19-73)
-23 ABS Right-rear Inlet Solenoid Valve Malfunction (Solenoid Stuck ON) ON ON (see page 19-73)
36 -01 ABS Right-rear Outlet Solenoid Valve Malfunction (Solenoid Initial Pulse) ON ON (see page 19-73)
-21 ABS Right-rear Outlet Solenoid Valve Malfunction (Solenoid Pulse) ON ON (see page 19-73)
-22 ABS Right-rear Outlet Solenoid Valve Malfunction (Solenoid Speculative) ON ON (see page 19-73)
-23 ABS Right-rear Outlet Solenoid Valve Malfunction (Solenoid Stuck ON) ON ON (see page 19-73)
37 -01 ABS Left-rear Inlet Solenoid Valve Malfunction (Solenoid Initial Pulse) ON ON (see page 19-73)
-21 ABS Left-rear Inlet Solenoid Valve Malfunction (Solenoid Pulse) ON ON (see page 19-73)
-22 ABS Left-rear Inlet Solenoid Valve Malfunction (Solenoid Speculative) ON ON (see page 19-73)
-23 ABS Left-rear Inlet Solenoid Valve Malfunction (Solenoid Stuck ON) ON ON (see page 19-73)
38 -01 ABS Left-rear Outlet Solenoid Valve Malfunction (Solenoid Initial Pulse) ON ON (see page 19-73)
-21 ABS Left-rear Outlet Solenoid Valve Malfunction (Solenoid Pulse) ON ON (see page 19-73)
-22 ABS Left-rear Outlet Solenoid Valve Malfunction (Solenoid Speculative) ON ON (see page 19-73)
-23 ABS Left-rear Outlet Solenoid Valve Malfunction (Solenoid Stuck ON) ON ON (see page 19-73)
41 -21 Right-front Wheel Lock ON ON/OFF (see page 19-74)
42 -21 Left-front Wheel Lock ON ON/OFF (see page 19-74)
43 -21 Right-rear Wheel Lock ON ON/OFF (see page 19-74)
44 -21 Left-rear Wheel Lock ON ON/OFF (see page 19-74)
51 -11 Motor Lock ON OFF (see page 19-75) -12 Motor Drive Circuit Malfunction ON OFF (see page 19-76)
-13 Motor Drive Circuit Malfunction ON OFF (see page 19-75)
52 -12 Motor Stuck OFF ON OFF (see page 19-78)
53 -01 Motor Relay Stuck ON 1 ON OFF (see page 19-78) -12 Motor Relay Stuck ON 2 ON OFF (see page 19-78)
54 -03 Fail-safe Relay 1 Stuck ON ON ON (see page 19-79) -04 Fail-safe Relay 1 Stuck OFF (Initial) ON ON (see page 19-80)
-21 Fail-safe Relay 1 Stuck OFF (Main) ON ON (see page 19-80)
61 -01 ABS Modulator-control Unit Initial IG Low Voltage ON ON (see page 19-81) -21 ABS Modulator-control Unit Power Source Low Voltage 1 ON ON (see page 19-81)
-22 ABS Modulator-control Unit Power Source Low Voltage 2 ON OFF (see page 19-81)
-23 ABS Modulator-control Unit Power Source Low Voltage 3 ON ON (see page 19-81)
62 -21 ABS Modulator-control Unit IG High Voltage ON ON (see page 19-82)
: Brake system indicator turns ON when two or more wheels fail.
(cont’d)
08/08/21 15:02:16 61SNR030_190_0053
ProCarManuals.com
DYNOMITE -2009-

DTCDetection Item ABS Indicator Brake System
Indicator Note
19-54ABS Components
DTC Troubleshooting Index (cont’d)
71 -21 Right-front or Left-rear Different Diameter Tire Malfunction
ONON (see page 19-83)
-22 Left-front or Right-rear Different Diameter Tire Malfunction ONON (see page 19-83)
-23 Right-front and Right-rear Different Diameter Tire Malfunction ONON (see page 19-83)
-24 Left-front and Left-rear Different Diameter Tire Malfunction ONON (see page 19-83)
-25 Right-front and Left-front Different Diameter Tire Malfunction ONON (see page 19-83)
-26 Right-rear and Left-rear Different Diameter Tire Malfunction ONON (see page 19-83)
81 -01 Central Processing Unit (CPU) Internal Circuit Malfunction ONON (see page 19-84)
-05 Central Processing Unit (CPU) Internal Circuit Malfunction ONON (see page 19-84)
-06 Central Processing Unit (CPU) Internal Circuit Malfunction ONON (see page 19-84)
-08 Central Processing Unit (CPU) Internal Circuit Malfunction ONON (see page 19-84)
-11 Central Processing Unit (CPU) Internal Circuit Malfunction ONON (see page 19-84)
-14 Central Processing Unit (CPU) Internal Circuit Malfunction ONON (see page 19-84)
-23 Central Processing Unit (CPU) Internal Circuit Malfunction ONON (see page 19-84)
-30 Central Processing Unit (CPU) Internal Circuit Malfunction ONON (see page 19-84)
-31 Central Processing Unit (CPU) Internal Circuit Malfunction ONON (see page 19-84)
-32 Central Processing Unit (CPU) Internal Circuit Malfunction ONON (see page 19-84)
-51 Central Processing Unit (CPU) Internal Circuit Malfunction ONON (see page 19-84)
-52 Central Processing Unit (CPU) Internal Circuit Malfunction ONON (see page 19-84)
-71 Central Processing Unit (CPU) Internal Circuit Malfunction ONOFF (see page 19-84)
86 -01 F-CAN Bus-off Malfunction OFFOFF (see page 19-85)
-24 F-CAN Communication with Engine Malfunction OFFOFF (see page 19-86)
-25 F-CAN Communication with Engine Malfunction OFFOFF (see page 19-86)
-FF F-CAN Communication with ABS Malfunction OFFOFF (see page 19-87)
08/08/21 15:02:16 61SNR030_190_0054
ProCarManuals.com
DYNOMITE -2009-

(#'
)
Symptom Diagnostic procedure
19-55
Symptom Troubleshooting Index
When the vehicle has one of these symptoms, check for a diagnostic trouble code (DTC) with the HDS. If there is no
DTC, do the diagnostic procedure for the symptom, in the sequence listed, until you find the cause.
HDS does not communicate with the ABS
modulator-control unit or the vehicle Troubleshoot the DLC circuit (see page 11-204).
ABS indicator and brake system indicator
do not come on 1.
2.Do the gauge control module troubleshooting (see page 22-241).
Substitute a known-good ABS modulator-control unit, then
recheck. If it is OK, replace the original ABS modulator-control
unit (see page 19-90).
ABS indicator and brake system indicator
do not go off 1.
2.
3.Check for F-CAN DTCs, and troubleshoot and repair those first.
Symptom troubleshooting (see page 19-88).
Do the gauge control module troubleshooting (see page 22-241).
08/08/21 15:02:16 61SNR030_190_0055
ProCarManuals.com
DYNOMITE -2009-

•••
´
´ ´
´

(#'
)

ABS Modulator-control Unit Inputs and Outputs for 25P Connector (Connector Disconnected)
TerminalnumberWire color Terminal sign Description Signal
19-56ABS Components
System Description
NOTE: Standard battery voltage is about 12 V.
1 WHT CAN-H F-CAN communication circuit
2 GRN FR B Detects right-front wheel speed sensor signal
3 RED FL-GND Detects left-front wheel speed sensor signal
5 PUR RL-GND Detects left-rear wheel speed sensor signal
6 LT GRN RR B Detects right-rear wheel speed sensor signal
8 WHT FSR B Power source for the fail-safe relay Battery voltage at all times
9 RED MR B Power source for the motor relay Battery voltage at all times
Wire side of female terminals
08/08/21 15:02:17 61SNR030_190_0056
ProCarManuals.com
DYNOMITE -2009-

•••
´
´
•••
TerminalnumberWire color Terminal sign Description Signal
19-57
NOTE: Standard battery voltage is about 12 V.
10 LT BLU K-LINE Communication with HDS
12 WHT FL B Detects left-front wheel speed sensor signal
14 YEL RL B Detects left-rear wheel speed sensor signal
15 BLU RR-GND Detects right-rear wheel speed sensor signal
16 YEL GRY IG1 Power source for activating the
system With ignition switch ON (II): about battery
voltage
17 RED CAN-L F-CAN communication circuit
18 PNK FR-GND Detects right-front wheel speed sensor signal
24 BLK GND Ground for the ABS modulator- control unit Continuity to ground
25 BLK MR-GND Ground for the pump motor Continuity to ground
*1: ’06 model
*2: ’07 model
(cont’d)
*1*2
08/08/21 15:02:17 61SNR030_190_0057
ProCarManuals.com
DYNOMITE -2009-