2005 NISSAN X-TRAIL ESP

BRC-98
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

3. YAW RATE SENSOR/SIDE G SENSOR CIRCUIT CHECK
Check that “YAW RATE SEN” and “SIDE G-SENSOR” are in normal operation in “DATA MONITOR”.
Is inspection result OK?
YES >> Perform ESP/TCS/ABS control unit self-diagnosis again.
NO >> The yaw rate/side G sensor malfunction. After replacing the sensor, perform the self-diagnosis of
ESP/TCS/ABS control unit again.
Inspection 7 Solenoid Valve, ESP Switch-over Solenoid Valve and CircuitEFS005WC
INSPECTION PROCEDURE
1. SELF-DIAGNOSTIC RESULT CHECK 1
Check the self-diagnostic results.
Are any self-diagnosis result items above indicated?
YES >> GO TO 2.
NO >> INSPECTION END
2. SELF-DIAGNOSTIC RESULT CHECK 2
1. Disconnect ESP/TCS/ABS control unit connector and solenoid valve connectors. Securely connect them
again.
2. Perform the self-diagnosis again.
Are any self-diagnosis result items indicated again?
YES >> GO TO 3.
NO >> Repair or replace the poorly connected connector.Vehicle statusYAW R AT E S E N
(DATA MONITOR) SIDE G-SENSOR
(DATA MONITOR)
While the vehicle is stopped
– 4 to + 4 °/s
–1.1 to + 1.1 m/s
2
Right turn Negative value Negative value
Left turn Positive value Positive value
Self-diagnostic results
FR LH IN ABS SOL
FR LH OUT ABS SOL
RR RH IN ABS SOL
RR RH OUT ABS SOL
FR RH IN ABS SOL
FR RH OUT ABS SOL
RR LH IN ABS SOL
RR LH OUT ABS SOL
USV LINE [FL-RR]
USV LINE [FR-RL]
HSV LINE [FL-RR]
HSV LINE [FR-RL]

TROUBLE DIAGNOSIS
BRC-99
[ESP/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC

3. SOLENOID VALVE INPUT SIGNAL CHECK.
1. Disconnect ESP/TCS/ABS control unit connector.
2. Turn ignition switch ON and check the voltage between ESP/
TCS/ABS control unit and body ground.
Is inspection result OK?
YES >> Check ESP/TCS/ABS control unit power supply circuit.
NO >> GO TO 4.
SFIA2193E
ESP/TCS/ABS control unit
(harness connector E122)Body ground Voltage
26 (W/G)
– Battery voltage (approx.12V) 5 (G/OR)
6 (PU/W)
53 (P)
55 (R/Y)
3 (Y/G)
4 (GY/R)
25 (LG)
49 (B/W)
50 (R/G)
54 (W/L)
52 (PU)

BRC-100
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

4. SOLENOID VALVE LINE CHECK
1. Disconnect connectors for ESP/TCS/ABS control unit and ESP actuator.
2. Check for continuity between ESP/TCS/ABS control unit and
ESP actuator (harness connector E67and E68).
Is inspection result OK?
YES >> GO TO 5.
NO >> Harness disconnection between ESP/TCS/ABS control unit and the ESP actuator
SFIA2194E
ESP/TCS/ABS control unit
(harness connector E122)ESP actuator
(harness connector E67 and E68)Continuity
26 (W/G) 3 (W/G)
Ye s 5 (G/OR) 1 (G/OR)
6 (PU/W) 7 (PU/W)
53 (P) 5 (P)
55 (R/Y) 15 (R/Y)
3 (Y/G) 14 (Y/G)
4 (GY/R) 17 (GY/R)
25 (LG) 16 (LG)
49 (B/W) 26 (B/W)
50 (R/G) 25 (R/G)
54 (W/L) 28 (W/L)
52 (PU) 27 (PU)

TROUBLE DIAGNOSIS
BRC-101
[ESP/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC

5. ACTUATOR SOLENOID INSPECTION
1. Disconnect ESP actuator connector and ESP relay box harness connector.
2. Check the resistance value at ESP actuator.
Is inspection result OK?
YES >> Perform ESP/TCS/ABS control unit self-diagnosis again.
NO >> Replace ESP actuator assembly.
Inspection 8 Actuator Motor, Motor Relay and CircuitEFS005WD
INSPECTION PROCEDURE
1. SELF-DIAGNOSTIC RESULT CHECK 1
Check the self-diagnostic results.
NOTE:
“ACTUATOR RLY” on the CONSULT-II self-diagnosis results indicates the malfunction of the actuator relay
and circuit.
Are
“PUMP MOTOR” and “ACTUATOR RLY” (NOTE) indicated in the self-diagnosis results?
YES >> GO TO 2.
NO >> INSPECTION END
SFIA2181E
ESP Actuator
(Actuator side)ESP Relay box
(harness connector E57)Resistance
3(W/G)
406.0 – 11Ω 1(G/OR)
7(PU/W)
5(P)
26(B/W)
25(R/G)
15(R/Y)
3.0 – 5.0Ω 14(Y/G)
17(GY/R)
16(LG)
28(W/L)
27(PU)
Self-diagnostic results
PUMP MOTOR
ACTUATOR RLY (NOTE)

BRC-102
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

2. SELF-DIAGNOSTIC RESULT CHECK 2
1. Disconnect connectors for ESP/TCS/ABS control unit and the actuator. Securely connect them again.
2. Perform the self-diagnosis again.
Are any self-diagnosis items indicated again?
YES >> GO TO 3.
NO >> Repair or replace the poorly connected connector.
3. ACTUATOR MOTOR, MOTOR RELAY POWER SUPPLY CIRCUIT INSPECTION
1. Disconnect relay box harness connectors.
2. Check the voltage between the harness connector E55 and
body ground.
Is inspection result OK?
YES >> GO TO 4.
NO >>

Check the fuse 50A.

Check for the continuity between battery and relay box terminal No. 10.
4. ACTUATOR MOTOR AND MOTOR RELAY CIRCUIT CHECK
1. Disconnect connectors for ESP/TCS/ABS control unit and the
relay box.
2. Check for continuity between ESP/TCS/ABS control unit, the
relay.
Is inspection result OK?
YES >> GO TO 5.
NO >> Harness malfunction between ESP/TCS/ABS control unit, the ESP relay box.
5. MOTOR RELAY UNIT INSPECTION
Check the motor relay as a unit.
Is inspection result OK?
YES >> Check ESP/TCS/ABS control unit power supply circuit.
NO >> Replace the motor relay.
SFIA2206E
ESP Relay box
(harness connector E55)Body ground Voltage value
10 (W/R) – Battery voltage (approx. 12V)
ESP/TCS/ABS
control unit
(harness
connector E122)ESP relay box
(harness
connector
E56and E57)Continuity
20 (R/B) 4 (R/B)
Ye s
7 (G/W) 8 (G/W)
SFIA2182E

TROUBLE DIAGNOSIS
BRC-103
[ESP/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC

Inspection 9 Actuator Relay and CircuitEFS005WE
INSPECTION PROCEDURE
1. SELF-DIAGNOSTIC RESULT CHECK 1
Check the self-diagnostic results.
Is
“MAIN RELAY” indicated in the self-diagnosis results?
YES >> GO TO 2.
NO >> INSPECTION END
2. SELF-DIAGNOSTIC RESULT CHECK 2
1. Disconnect ESP/TCS/ABS control unit connector. Securely connect them again.
2. Perform ESP/TCS/ABS control unit self-diagnosis again.
Is the same self-diagnosis item indicated?
YES >> GO TO 3.
NO >> Repair or replace the poorly connected connector.
3. ESP/TCS/ABS CONTROL UNIT GROUND CIRCUIT INSPECTION
1. Disconnect ESP/TCS/ABS control unit connector.
2. Check ESP/TCS/ABS control unit ground circuit.
Is inspection result OK?
YES >> GO TO 4.
NO >> Poor connection on ESP/TCS/ABS control unit connector or harness disconnection.
Self-diagnostic results
MAIN RELAY
SFIA2195E
ESP/TCS/ABS control unit
(harness connector E122)Body ground Continuity
28 (B)
–Yes
29 (B)

BRC-104
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

4. ACTUATOR RELAY POWER SUPPLY CIRCUIT INSPECTION
1. Disconnect the relay box connectors.
2. Check the voltage between the harness connector and body
ground.
Is inspection result OK?
YES >> GO TO 5.
NO >>

Check the fuse 30A.

Check for the continuity between battery and the relay box terminal No. 9. If it is not OK,
replace the fuse or harness.
5. ACTUATOR RELAY POWER CIRCUIT CHECK
1. Disconnect connectors for ESP/TCS/ABS control unit and the
relay box.
2. Check for continuity between ESP/TCS/ABS control unit and
the relay box.
Is inspection result OK?
YES >> GO TO 6.
NO >> The harness disconnection between ESP/TCS/ABS control unit and the relay box.
6. ACTUATOR RELAY UNIT INSPECTION
Check the actuator relay as a unit.
Is inspection result OK?
YES >> Check ESP/TCS/ABS control unit power supply circuit.
NO >> Replace the actuator relay.
SFIA2183E
ESP relay box
(harness connector E55)Body ground Voltage value
9 (BR) – Battery voltage (approx. 12V)
SFIA2184E
ESP/TCS/ABS control unit
(harness connector E122)ESP relay box
(harness connector E56)Continuity
2 (Y/R) 5 (Y/R)
Yes
36 (L/Y) 7 (L/Y)

TROUBLE DIAGNOSIS
BRC-105
[ESP/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC

Inspection 10 Stop Lamp Switch and CircuitEFS005WF
INSPECTION PROCEDURE
1. SELF-DIAGNOSTIC RESULT CHECK
Check the self-diagnostic results.
Is
“STOP LAMP SW” indicated in the self-diagnosis results?
YES >> GO TO 2.
NO >> INSPECTION END
2. STOP LAMP INSPECTION
1. Disconnect connectors for stop lamp switch and ESP/TCS/ABS control unit.
2. Securely connect them again.
3. Start the engine.
4. Repeat depressing brake pedal carefully several times, then perform the self-diagnosis again.
Is the same self-diagnosis item indicated?
YES >> GO TO 3.
NO >> Repair or replace the poorly connected connector.
3. STOP LAMP SWITCH CIRCUIT CHECK
1. Disconnect connectors for stop lamp switch and ESP/TCS/
ABS control unit.
2. Check for the continuity between the stop lamp switch and ESP/
TCS/ABS control unit.
Is inspection result OK?
YES >> Perform ESP/TCS/ABS control unit self-diagnosis again.
NO >> The harness disconnection between ESP/TCS/ABS control unit and stop lamp switch.
Inspection 11 ESP/TCS/ABS Control Unit Power Supply CircuitEFS005WG
INSPECTION PROCEDURE
1. SELF-DIAGNOSTIC RESULT CHECK 1
Check the self-diagnostic results.
Is
“BATTERY VOLTAGE [ABNORMAL]” indicated in the self-diagnosis results?
YES >> GO TO 2.
NO >> INSPECTION END
Self-diagnostic results
STOP LAMP SW
SFIA2185E
ESP/TCS/ABS control unit
(harness connector E122)STOP LAMP SW
(harness connector M12)Continuity
48 (P) 2 (P) Yes
Self-diagnostic results
BATTERY VOLTAGE [ABNORMAL]