Page 1377 of 2893

µ
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YES
NO
YES
NO
17-54EPS Components
DTC Troubleshooting (cont’d)
EPS CONTROL UNIT CONNECTOR B (2P)
H-W (GRN)
EPS CONTROL UNIT CONNECTOR C (2P) H-U (RED) H-V (BLU) EPS CONTROL UNIT CONNECTOR B (2P)
H-W (GRN)
EPS CONTROL UNIT CONNECTOR C (2P) H-U (RED) H-V (BLU)
10. Check for continuity between body ground and EPScontrol unit connector B (2P) terminal No. 1,
connector C (2P) terminal No. 1, and connector C
(2P) terminal No. 2 individually.
Go to step 11.
Check for loose terminals in the EPS control
unit connectors, and repair if necessary. If no poor
connections are found, replace the EPS control unit
(see page 17-84).
11. Disconnect the EPS motor 1P connector and the EPS motor 2P connector. 12. Check for continuity between body ground and EPS
control unit connector B (2P) terminal No. 1,
connector C (2P) terminal No. 1, and connector C
(2P) terminal No. 2 individually.
Repair short to body ground in the wire
between the EPS control unit and the EPS motor.
Short to the body ground in the EPS motor
wire, or the EPS motor internal circuit, replace the
EPS motor (see page 17-65).
Wire side of female terminals
Wire side of female terminals Wire side of female terminals
Wire side of female terminals
I s t her e cont i nui t y ? I s t her e cont i nui t y ?
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Page 1378 of 2893

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µ
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YES
NO
YES
NO
YES
NO
DTC 71-01:
DTC 71-02:
DTC 71-03:
DTC 71-05:
DTC 71-06:
17-5517-55
No. 1
No. 2
No. 1
No. 2
H-W (RED)
H-U (BLK)
H-V (WHT)
EPS MOTOR
1P CONNECTOR
EPS MOTOR
2P CONNECTOR
No. 1
No. 1
EPS MOTOR 2P CONNECTOR
EPS MOTOR 1P CONNECTOR
13. Disconnect the EPS motor 1P connector and the
EPS motor 2P connector.
14. On the EPS motor side, check for continuity between the following terminals of the EPS motor
1P and the EPS motor 2P connector.
Repair open in the wire between the EPS
control unit and the EPS motor.
Open in the EPS motor wire, or EPS motor
internal circuit, replace the EPS motor (see page
17-63). 1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Turn the ignition switch to LOCK (0).
4. Start the engine.
5. Turn the steering wheel to the right or left, and wait
10 seconds or more.
Go to step 6.
Check for loose terminals or poor connections.
If the connections are good, the system is OK at
this time.
6. Check for DTCs with the HDS.
Go to step 7.
Troubleshoot the indicated DTC. If there are
no DTCs, the system is OK at this time.
7. Turn the ignition switch to LOCK (0).
8. Disconnect EPS control unit connector D (28P).
(cont’d)EPS Motor Angle Sensor (SIN/
COS Signals) (Steering Diagnosis)
EPS Motor Angle Sensor (Neutral
Position Learning of SIN/COS) (Initial
Diagnosis)
EPS Motor Angle Sensor (SIN/
COS Signals) (Steering Diagnosis)
EPS Motor Angle Sensor (SIN/
COS Signals Charging Amount) (Steering
Diagnosis)
EPS Motor Angle Sensor (Neutral
Position of SIN/COS) (Initial Diagnosis)
Terminal side of male terminal
Terminal side of male terminals
Is there continuity? Does t he E PS i nd i cat or come on?
Is DT C 7 1-01, 7 1-02, 7 1-03, 7 1-05 or 7 1-06indicated?
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Page 1379 of 2893

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YES
NO YES
NO
17-56EPS Components
DTC Troubleshooting (cont’d)
No. 27 (R2)
No. 13 (R1)
No. 12 (S1)
No. 14 (S2) No. 26 (S3)
No. 28 (S4)
EPS CONTROL UNIT CONNECTOR D (28P)
EPS CONTROL UNIT CONNECTOR D (28P) S1 (PNK)
S3 (BRN) S4 (BLU)
S2 (BRN)
R1 (BLU)
R2 (PNK) EPS CONTROL UNIT CONNECTOR D (28P)
S3 (BRN)R2 (PNK) S4 (BLU) S2 (BRN)
R1 (BLU)
S1 (PNK)
9. Measure the resistance between the following
terminals of EPS control unit connector D (28P).
Go to step 10.
Go to step 13. 10. Check for continuity between body ground and EPS
control unit connector D (28P) terminal No. 12,
terminal No. 13, terminal No. 14, terminal No. 26,
terminal No. 27, and terminal No. 28 individually.
Go to step 11.
Check for loose terminals in the EPS control
unit connectors, and repair if necessary. If no poor
connections are found, replace the EPS control unit
(see page 17-84).
11. Disconnect the EPS motor angle sensor 6P connector.
Wire side of female terminals
Wire side of female terminals
Is t he r esi st ance bet w een R1-R2 13 25 , S1-S326 49 , and S2-S4 26 49 ? I s t her e cont i nui t y ?
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Page 1380 of 2893

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YES
NO
YES
NO
17-57
EPS MOTOR ANGLE SENSOR 6P CONNECTOR
S3
(BLU)R2
(GRN)S4 (RED) S2 (BLK)
R1 (BRN)
S1 (YEL) No. 5 (R2)
No. 2 (R1)
No. 1 (S1)
No. 3 (S2) No. 4 (S3)
No. 6 (S4)
EPS MOTOR ANGLE SENSOR 6P CONNECTOR
EPS MOTOR ANGLE SENSOR 6P CONNECTOR S1 (YEL)
S3 (BLU) R1 (BRN)
S2 (BLK)
S4 (RED)
R2 (GRN)
12. On the sensor side, check for continuity between body ground and EPS motor angle sensor 6P
connector terminal No. 1, terminal No. 2, terminal
No.3,terminalNo.4,terminalNo.5,andterminal
No. 6 individually.
Faulty EPS motor angle sensor (internal
failure), or short to body ground in the wire (sensor
side), replace the EPS motor (see page 17-63).
Repair short to body ground in the wire
between the EPS motor angle sensor 6P connector
and the EPS control unit. 13. Disconnect the EPS motor angle sensor 6P
connector.
14. On the sensor side, measure the resistance between the following terminals of the EPS motor
angle sensor 6P connector.
Open, or short to body ground in the wire
between the EPS motor angle sensor 6P connector
and the EPS control unit.
Faulty EPS motor angle sensor (internal
failure), or short to body ground in the wire (sensor
side), replace the EPS motor (see page 17-63).
Terminal side of male terminals
Terminal side of male terminals
Is there continuity?Is t he r esi st ance bet w een R1-R2 13 25 , S1-S326 49 , and S2-S4 26 49 ?
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Page 1381 of 2893

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DTC 71-04:
YES
NO
YES
NO YES
NO
YES
NO
17-58EPS Components
DTC Troubleshooting (cont’d)
EPS CONTROL UNIT CONNECTOR D (28P)
R1 (BLU)
R2 (PNK)
EPS CONTROL UNIT CONNECTOR D (28P) R1 (BLU)
R2 (PNK)
EPS Motor Angle Sensor (Check
Signals) (Regular Diagnosis)
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Turn the ignition switch to LOCK (0).
4. Start the engine.
5. Turn the steering wheel to the right or left, and wait
10 seconds or more.
Go to step 6.
Check for loose terminals or poor connections.
If the connections are good, the system is OK at
this time.
6. Check for DTCs with the HDS.
Go to step 7.
Troubleshoot the indicated DTC. If there are
no DTCs, the system is OK at this time.
7. Turn the ignition switch to LOCK (0).
8. Disconnect the EPS control unit connector D (28P). 9. Measure the resistance between the EPS control
unit connector D (28P) terminal No. 13 and No. 27.
Go to step 10.
Go to step 13.
10. Check for continuity between body ground and the EPS control unit connector D (28P) terminal No. 13
and the terminal No. 27 individually.
Go to step 11.
Check for loose terminals in the EPS control
unit connectors, and repair if necessary. If no poor
connections are found, replace the EPS control unit
(see page 17-84).
Wire side of female terminals
Wire side of female terminalsDoes t he E PS i nd i cat or come on?
Is DTC 71-04 indicated? Is t he r esi st ance bet w een 13 25 ?
Is there continuity?
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Page 1382 of 2893

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µ
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YES
NO YES
NO
17-59
EPS MOTOR ANGLE SENSOR 6P CONNECTOR
R2 (GRN)
R1 (BRN)
EPS MOTOR ANGLE SENSOR 6P CONNECTOR
R2 (GRN)
R1 (BRN)
11. Disconnect the EPS motor angle sensor 6P
connector.
12. On the sensor side check for continuity between body ground and EPS motor angle sensor 6P
connector terminal No. 2 and the terminal No. 5
individually.
Faulty EPS motor angle sensor (internal
failure), or short to body ground in the wire (sensor
side), replace the EPS motor (see page 17-63).
Repair short to body ground in the wire
between the EPS motor angle sensor 6P connector
and the EPS control unit. 13. Disconnect the EPS motor angle sensor 6P
connector.
14. On the sensor side measure the resistance between the EPS motor angle sensor 6P connector terminals
No. 2 and No. 5.
Open, or short to body ground in the wire
between the EPS motor angle sensor 6P connector
and EPS control unit.
Faulty EPS motor angle sensor (internal
failure), or short to body ground in the wire (sensor
side), replace the EPS motor (see page 17-63).
Terminal side of male terminals Terminal side of male terminals
Is there continuity?
Is t he r esi st ance bet w een 13 25?
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Page 1383 of 2893

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EPS indicator does not come on EPS indicator does not go off, and no DTCs
are stored
YES
NO
YES
NO
YES
NO
17-6017-60EPS Components
Symptom Troubleshooting
EPS CONTROL UNIT CONNECTOR D (28P)
IG1 (YEL)* (GRY)*
*1: ’06 model
*2: ’07-09 models
12
1. Turn the ignition switch to ON (II), and watch the EPS indicator.
The system is OK at this time.
Troubleshoot the gauge control module (tach)
(see page 22-241). NOTE: Check for gauge DTCs with the HDS (see page
22-3). If gauge DTCs are stored, troubleshoot those
DTCs first.
1. Turn the ignition switch to LOCK (0).
2. Check the No. 4 (7.5 A) fuse in the under-dash fuse/ relay box.
Reinstall the checked fuse, then go to step 5.
Go to step 3.
3. Disconnect EPS control unit connector D (28P).
4. Check for continuity between EPS control unit connector D (28P) terminal No. 16 and body ground.
Repair short to body ground in the wire
between the EPS control unit and the No. 4 (7.5 A)
fuse in the under-dash fuse/relay box.
Install a new No. 4 (7.5 A) fuse in the under-
dashfuse/relaybox,thengotostep5.
Wire side of female terminals
Does t he E PS i nd i cat or come on?
IsthefuseOK?
Is there continuity?
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YES
NO
YES
NO YES
NO
17-61
EPS CONTROL UNIT CONNECTOR D (28P)
IG1 (YEL)* (GRY)*
*1: ’06 model
*2: ’07-09 models EPS CONTROL UNIT CONNECTOR A (2P)
PG (BLK)
12
5. Reconnect EPS control unit connector D (28P).
6. Turn the ignition switch to ON (II), and watch theEPS indicator.
Troubleshooting is complete.
Replace the EPS control unit (see page 17-84).
7. Disconnect EPS control unit connector D (28P).
8. Turn the ignition switch to ON (II).
9. Measure the voltage between EPS control unit connector D (28P) terminal No. 16 and body ground.
Go to step 10.
Repair open in the wire between the EPS
control unit and under-dash fuse/relay box.
10. Turn the ignition switch to LOCK (0).
11. Disconnect EPS control unit connector A (2P). 12. Check for continuity between EPS control unit
connector A (2P) terminal No. 1 and body ground.
Go to step 13.
Repair open in the wire between the EPS
control unit and body ground (G 402).
(cont’d)
Wire side of female terminals Wire side of female terminals
Does the EPS indicator come on, then go of f ?
Is there battery voltage? Is there continuity?
08/08/21 14:55:07 61SNR030_170_0062
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