Nissan Frontier D40. Manual - part 127

BRC-206

< FUNCTION DIAGNOSIS >

[TYPE 3]

HILL DESCENT CONTROL

HILL DESCENT CONTROL

System Description

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• The hill descent control system will help maintain vehicle speed when driving under 25-35 km/h (15-21 MPH)

on steeper downhill grades. Hill descent control will provide braking allowing the driver to concentrate on
steering while reducing the burden of brake and accelerator operation.

• To operate the system, set the 4WD switch to 4H or 4LO and push the hill descent control switch. The hill

descent control indicator in the combination meter will turn on. While hill descent control is operating, the
stop/tail lamps will illuminate.

• If the accelerator or brake pedal is depressed while the hill descent control system is on, the system will stop

operating.

• During hill descent control operation, a mechanical noise may be heard. This is normal.
• Electrical system diagnosis by CONSULT-III is available.

HILL DESCENT CONTROL

BRC-207

< FUNCTION DIAGNOSIS >

[TYPE 3]

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Component Parts Location

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AWFIA0588GB

1.

Front wheel sensor LH E18
Front wheel sensor RH E117

2.

Brake  fluid level switch  E21

3.

ABS actuator and electric unit (control unit) 
E127

4.

Hill descent control switch M155 5.

Combination meter M24

6.

Yaw rate/side/decel G sensor B73

7.

C200 rear axle

8.

Rear wheel sensor LH C11
Rear wheel sensor RH C10

9.

M226 rear axle

BRC-208

< FUNCTION DIAGNOSIS >

[TYPE 3]

HILL DESCENT CONTROL

Component Description

INFOID:0000000005549783

10. Rear wheel sensor LH C11

Rear wheel sensor RH C10

11.

Steering angle sensor (behind spiral ca-
ble) M47
(Steering wheel removed for clarity)

12. VDC OFF switch M154

13. Stop lamp switch E39

Component parts

Reference

ABS actuator and electric unit (control unit)

Pump

BRC-227, "Description"

Motor

Actuator relay

BRC-244, "Description"

Solenoid valve

BRC-236, "Description"

VDC switch-over valve
(CV1, CV2, SV1, SV2)

BRC-255, "Description"

Wheel sensor

BRC-231, "Description"

Yaw rate/side/decel G sensor

BRC-229, "Description"

Brake fluid level switch

BRC-246, "Description"

Steering angle sensor

BRC-246, "Description"

Stop lamp switch

BRC-234, "Description"

VDC OFF switch

BRC-262, "Description"

Hill descent control switch

BRC-260, "Description"

ABS warning lamp

BRC-264, "Description"

Brake warning lamp

BRC-265, "Description"

VDC OFF indicator lamp

BRC-266, "Description"

SLIP indicator lamp

BRC-268, "Description"

Hill descent control indicator lamp

BRC-269, "Description"

HILL START ASSIST

BRC-209

< FUNCTION DIAGNOSIS >

[TYPE 3]

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HILL START ASSIST

System Description

INFOID:0000000005275248

• The hill start assist system will assist the driver by applying the brake automatically and preventing the vehi-

cle from rolling backward when starting on an uphill.

• The maximum holding time is 2 seconds. After 2 seconds, the vehicle will begin to roll back gradually and

then hill start assist will stop operating completely.