2006 ACURA CSX Service Repair Manual

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Page 1345 of 2893

ACURA CSX 2006 Service Repair Manual ¶
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17-22EPS Components
Memorizing the Torque Sensor Neutral Position
A
The torque sensor neutral position must be memorized
whenever the st

Page 1346 of 2893

ACURA CSX 2006 Service Repair Manual (#

)
DTC Detection Item Note
17-23
DTC Troubleshooting Index
11-01 Low/High IG1-terminal Voltage (Initial Diagnosis)
(see page 17-33)
11-02 Low/High IG1-te

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DTC Detection Item Note
17-23
DTC Troubleshooting Index
11-01 Low/High IG1-terminal Voltage (Initial Diagnosis)
(see page 17-33)
11-02 Low/High IG1-terminal Voltage (Regular Diagnosis) (see page 17-33)
12-01 Low/High VBU Voltage (Regular Diagnosis) (see page 17-34)
21-01 Excessive Change of the Vehicle Speed Signal (Regular Diagnosis) (see page 17-35)
21-02 Comparison between the Vehicle Speed and the Engine Speed Signal (Regular Diagnosis) (see page 17-35)
22-01 Engine Speed Signal (Initial Diagnosis) (see page 17-37)
31-01 No Writing the Torque Sensor Neutral Position (Initial Diagnosis) (see page 17-22)
32-01 EPS Control Unit Internal Circuit (Current Sensor) (Initial Diagnosis) (see page 17-39)
32-02 EPS Control Unit Internal Circuit (Current Sensor) (Regular Diagnosis) (see page 17-39)
32-07 EPS Control Unit Internal Circuit (Current Sensor) (Steering Diagnosis) (see page 17-39)
32-08 Current Sensor (Regular Diagnosis) (see page 17-40)
32-09 Current Sensor (Initial Diagnosis) (see page 17-40)
33-01 Lower FET Stuck ON (Initial Diagnosis) (see page 17-41)
33-02 Upper FET Stuck ON (Initial Diagnosis) (see page 17-43)
33-06 Lower FET Stuck ON (Regular Diagnosis) (see page 17-41)
33-07 Upper FET Stuck ON (Regular Diagnosis) (see page 17-43)
34-01 Power Relay Stuck ON (Ignition Switch is in LOCK (0)) (see page 17-44)
34-02 Fail-safe Relay Stuck ON (Initial Diagnosis) (see page 17-45)
35-01 EPS Control Unit Internal Circuit (CPU) (Initial Diagnosis/Regular Diagnosis) (see page 17-39)
35-02 EPS Control Unit Internal Circuit (EEPROM) (Initial Diagnosis) (see page 17-39)
35-03 EPS Control Unit Internal Circuit (EPS CPU) (Initial Diagnosis) (see page 17-46)
35-04 EPS Control Unit Internal Circuit (CPU Communication) (Regular Diagnosis) (see page 17-39)
35-05 EPS Control Unit Internal Circuit (EPS Motor/EPS CPU) (Initial Diagnosis) (see page 17-46)
35-06 EPS Control Unit Internal Circuit (ITN Communication) (Regular Diagnosis) (see page 17-39)
35-07 EPS Control Unit Internal Circuit (INHL/INHR Ports) (Initial Diagnosis/ Regular Diagnosis) (see page 17-39)
NOTE: Initial diagnosis: Done right after the engine starts and until the EPS indicator goes off.
Regular diagnosis: Done right after the initial diagnosis until the ignition switch is turned to LOCK (0).
Steering diagnosis: Done during regular diagnosis while turning steering wheel.
(cont’d)
08/08/21 14:53:59 61SNR030_170_0024
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Page 1347 of 2893

ACURA CSX 2006 Service Repair Manual DTCDetection Item Note
17-24EPS Components
DTC Troubleshooting Index (cont’d)
36-02 EPS Control Unit Internal Circuit (INH Output Circuit) (Initial Diagnosis) (see page 17-39)
37-01 EPS Control Unit

Page 1348 of 2893

ACURA CSX 2006 Service Repair Manual (#

)
Symptom Diagnostic procedure
17-25
Symptom Troubleshooting Index
HDS does not communicate with the
EPS control unit or the vehicle
Troubleshoot the DL

Page 1349 of 2893

ACURA CSX 2006 Service Repair Manual ´•••
•••
•••

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)EPS Control Unit Inputs and Outputs for Connector A (2P) (Connector disconnected)
EPS Control

Page 1350 of 2893

ACURA CSX 2006 Service Repair Manual •••
•••
•••
EPS Control Unit Inputs and Outputs for Connector D (28P) (Connector disconnected)
Terminalnumber Wire color Terminal sign Description Signal
17-27
NOTE: Sta

Page 1351 of 2893

ACURA CSX 2006 Service Repair Manual Î
System Outline
17-28EPS Components
System Description (cont’d)
GAUGE CONTROL MODULE
ECM
Indicator drive signal
EPS CONTROL UNITEPS MOTOR
EPS MOTOR ANGLE SENSOR TORQUE SENSOR Motor drive sign

Page 1352 of 2893

ACURA CSX 2006 Service Repair Manual Î
ÎSteering Gearbox
Torque Sensor
17-29
Worm wheel gear
Worm gear
EPS motor
Torque sensor
Steered to right Center Steered to left Steered to left
Steered to right
0 VT1
VT3
VT2
Input volta

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