Infiniti Q45 (FY33). Manual - part 102

SBR633D

Electrical Component Inspection

INSPECTION OF TAC MODULE

I

Check that voltage between TAC module terminals is within the
following reference value.

SBR414E

I

Pin connector terminal layout.

TAC module inspection table for digital multimeter

*Data are reference values.

TERMINAL

NO.

ITEM

CONDITION

*DATA

2

Throttle opening signal

Ignition switch “ON”

Approximately 0.4 - 3.1V

Voltage varies with the throttle

valve opening angle.

3

Secondary throttle position sen-

sor

Vehicle is running

Approximately 0.5 - 4.1V

Voltage varies with the second-

ary throttle valve opening

angle.

4

Secondary throttle valve

signal

Vehicle is running

Approximately 0.4 - 3.1V

7

TCS SW

Ignition switch “ON”

Approximately 10V

8

Power source

Ignition switch “ON”

Battery voltage

9

19

14

Throttle motor relay

Ignition switch “ON”

Approximately 1.5V

15

Power supply for sensor

Ignition switch “ON”

Approximately 5V

108

Throttle motor relay

Ignition switch “ON”

Approximately 12V

110

Engine start signal

Ignition switch “ON”

Approximately 12V

GI

MA

EM

LC

EC

FE

AT

PD

FA

RA

ST

RS

BT

HA

EL

IDX

TROUBLE DIAGNOSES FOR TCS

BR-125

TAC MODULE INSPECTION TABLE FOR CONSULT-II

Monitor item

Display representation

Condition

Standard value or

indication

(Reference) Diagnostic
Procedures (When mea-
sured voltage is outside
specifications.)

THRTL POS SEN [V]

Sensor voltage [V]

Throttle valve

fully-closed

Approx. 0.5V

14

THRTL POS SE2

Sensor voltage [V]

Idling

Approx. 3.4V

15

TH OPEN SIG

Motor throttle target

position signal [ms]

TCS not operating

Approx. 9 ms

16

START SIGNAL

ON/OFF

Key switch “ON”

ON

21

NEUT POSI SW

ON/OFF

Switch in Park/Neutral

ON

22

SBR704D

TCS OFF SWITCH

Check continuity between terminals as shown.

SWITCH condition

Continuity existence

Pushed

Yes

Released

No

SBR729DA

THROTTLE MOTOR RELAY

Condition

Continuity existence between

terminals

q

3

and

q

5

Battery voltage not applied between
terminals

q

1

and

q

2

.

No

Battery voltage applied between ter-
minals

q

1

and

q

2

.

Yes

SBR675BB

PARK/NEUTRAL POSITION RELAY

Check continuity between terminals

q

6

and

q

7

.

Condition

Continuity

12V direct current supply between
terminals

q

1

and

q

2

.

Yes

No current supply

No

TROUBLE DIAGNOSES FOR TCS

Electrical Component Inspection (Cont’d)

BR-126

SBR705DA

PARK/NEUTRAL POSITION (PNP) SWITCH

Check continuity between terminals

q

3

and

q

7

,

q

9

.

Condition

Continuity between

terminals

q

3

and

q

7

Continuity between

terminals

q

3

and

q

9

Shift to “P” position

Yes

No

Shift to “N” position

No

Yes

Shift to positions other
than “P” and “N”

No

No

SBR709D

THROTTLE MOTOR

1.

Remove intake manifold upper collector.

2.

Disconnect connector. Manually push throttle valve to ensure
that it moves properly from fully closed to fully open position.

3.

With throttle valve set at fully open position, apply 12 volts (DC)
across throttle motor terminals

q

1

and

q

2

. Throttle valve must

move in fully closed direction.

GI

MA

EM

LC

EC

FE

AT

PD

FA

RA

ST

RS

BT

HA

EL

IDX

TROUBLE DIAGNOSES FOR TCS

Electrical Component Inspection (Cont’d)

BR-127

General Specifications

Front brake

Brake model

AD31VB disc brake

Cylinder bore diameter
x number of pistons

mm (in)

44.4 (1.748) x 2

Pad length x width
x thickness

mm (in)

132 x 52.5 x 11.0

(5.20 x 2.067 x 0.433)

Rotor outer diameter
x thickness

mm (in)

296 x 28 (11.65 x 1.10)

Rear brake

Brake model

AD11VB disc brake

Cylinder bore diameter
x number of piston

mm (in)

38.2 (1.504) x 1

Pad length x width
x thickness

mm (in)

97.4 x 33.9 x 10

(3.835 x 1.335 x 0.39)

Rotor outer diameter
x thickness

mm (in)

292 x 16 (11.50 x 0.63)

Parking brake

Brake model

DS17HE drum brake

Lining length x width
x thickness

mm (in)

172.0 x 25.0 x 3.2

(6.77 x 0.984 x 0.126)

Drum inner diameter

mm (in)

172.0 (6.77)

Master cylinder

Cylinder bore diameter

mm (in)

25.40 (1)

Control valve

Valve model

Proportioning valve

(within master cylinder)

Split point [kPa (kg/cm

2

, psi)] x

reducing ratio

1,961 (20, 284) x 0.4

Brake booster

Booster model

M215T

Diaphragm diameter

mm (in)

Primary: 230 (9.06)

Secondary: 205 (8.07)

Brake fluid

Recommended brake fluid

DOT 3

Inspection and Adjustment

DISC BRAKE

Unit: mm (in)

Location

Front

Rear

Brake model

AD31VB

AD11VB

Pad wear limit

Minimum thickness

2.0 (0.079)

Rotor repair limit

Maximum runout

0.07 (0.0028)

0.07 (0.0028)

Minimum thickness

26.0 (1.024)

14.0 (0.551)

PARKING DRUM BRAKE

Unit: mm (in)

Location

Rear

Brake model

DS17HE

Lining wear limit

Minimum thickness

1.5 (0.059)

Drum repair limit

Maximum inner diameter

173.0 (6.81)

Brake shoe “backoff” adjustment

5 - 6 latches

BRAKE PEDAL

Unit: mm (in)

Free height “H”

★

183 - 193

(7.20 - 7.60)

Depressed height “D”
[under force of 490 N (50 kg, 110 lb) with
engine running]

95 (3.74) or more

Clearance “C” between pedal
stopper and threaded end of
stop lamp switch or ASCD cancel switch

0.3 - 1.0

(0.012 - 0.039)

Pedal free play

1.0 - 3.0

(0.039 - 0.118)

★

: Measured from metal panel to surface of pedal pad.

PARKING BRAKE

Unit: mm (in)

Control type

Foot lever

Pedal stroke
[under force of 196 N (20 kg, 44 lb)]

88 - 103 (3.46 - 4.06)

Pedal stroke when warning switch comes on

29 (1.14) or less

SERVICE DATA AND SPECIFICATIONS (SDS)

BR-128