Infiniti M45 (Y34). Manual — part 798
TILT & TELESCOPIC SYSTEM
STC-17
[TILT/TELESCOPIC]
C
D
E
F
H
I
J
K
L
M
A
B
STC
7.
CHECK TELESCOPIC MOTOR CIRCUIT
1.
Disconnect BCM and telescopic motor connectors.
2.
Check continuity between BCM harness connector M4 terminals 101 (P/L), 107 (P/B) and telescopic
motor harness connector M60 terminals 1 (P/L), 2 (P/B).
3.
Check continuity between BCM harness connector M4 terminals 101 (P/L), 107 (P/B) and ground.
OK or NG
OK
>> Replace BCM.
NG
>> Repair or replace harness.
Terminals
Continuity
BCM (+)
Telescopic motor (–)
Connector
Terminal
Connector
Terminal
M4
101 (P/L)
M60
1 (P/L)
Yes
107 (P/B)
2 (P/B)
Yes
101 (P/L)
Ground
No
107 (P/B)
Ground
No
SGIA0436E
STC-18
[TILT/TELESCOPIC]
TILT & TELESCOPIC SYSTEM
Symptom 2: Tilt System Does Not Operate
AGS000F4
1.
CHECK STEERING WHEEL TILT MECHANISM
Check the following.
●
Operation malfunction caused by steering wheel tilt mechanism deformation or pinched harness or other
foreign materials.
●
Operation malfunction and interference with other parts by poor installation.
OK or NG
OK
>> GO TO 2.
NG
>> Repair the malfunctioning part and check again.
2.
CHECK TILT SWITCH INPUT/OUTPUT
1.
Disconnect steering position switch connector.
2.
Turn ignition switch ON.
3.
Check voltage between steering position switch harness connector M51 terminals 2 (P/L), 3 (PU/R) and
body ground.
OK or NG
OK
>> GO TO 3.
NG
>> GO TO 5.
3.
CHECK STEERING POSITION SWITCH GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Check continuity between steering position switch harness connector M51 terminal 1 (B) and body
ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace harness.
Terminals
Voltage
(V)
(+)
(–)
Connector
Terminal
M4
2 (P/L)
Ground
5V
3 (PU/R)
Ground
5V
SGIA0437E
1 (B) – Ground
: Continuity should exist.
SGIA0432E
TILT & TELESCOPIC SYSTEM
STC-19
[TILT/TELESCOPIC]
C
D
E
F
H
I
J
K
L
M
A
B
STC
4.
CHECK TILT SWITCH
Check continuity between steering position switch connector terminals 2, 3 and 1.
OK or NG
OK
>> GO TO 6.
NG
>> Replace steering position switch.
5.
CHECK HARNESS CONTINUITY
1.
Disconnect BCM connector.
2.
Check continuity between BCM harness connector M4 terminals 23 (PU/R), 36 (P/L) and steering position
switch harness connector M51 terminals 2 (P/L), 3 (PU/R).
3.
Check continuity between BCM harness connector M4 terminals 23 (PU/R), 36 (P/L) and ground.
OK or NG
OK
>> Replace BCM.
NG
>> Repair or replace harness.
6.
CHECK BCM OUTPUT SIGNAL
1.
Disconnect tilt motor connector.
2.
Check voltage between tilt motor harness connector M58 terminals 1 (R/B), 2 (P) and ground.
OK or NG
OK
>> Replace tilt motor.
NG
>> GO TO 7.
Terminals
Steering position switch operation
Continuity
2 – 1
Tilt up position
Yes
Neutral or tilt down position
No
3 – 1
Tilt down position
Yes
Neutral or tilt up position
No
SGIA0438E
Terminals
Continuity
(+)
(–)
Connector
Terminal
Connector
Terminal
M4
23 (PU/R)
M51
3 (PU/R)
Yes
36 (P/L)
2 (P/L)
Yes
23 (PU/R)
Ground
No
36 (P/L)
Ground
No
SGIA0439E
Terminals
Condition
Voltage
(+)
(–)
Connector
Terminal
M58
1 (R/B)
Ground
Tilt switch
(UP operation)
Battery voltage
2 (P)
Ground
Tilt switch
(DOWN operation)
Battery voltage
1 (R/B), 2 (P)
Ground
Tilt switch OFF
0V
SGIA0440E
STC-20
[TILT/TELESCOPIC]
TILT & TELESCOPIC SYSTEM
7.
CHECK TILT MOTOR CIRCUIT
1.
Disconnect BCM and telescopic motor connectors.
2.
Check continuity between BCM harness connector M4 terminals 102 (P), 103 (R/B) and tilt motor harness
connector M58 terminals 1 (R/B), 2 (P).
3.
Check continuity between BCM harness connector M4 terminals 102 (P), 103 (R/B) and body ground.
OK or NG
OK
>> Replace BCM.
NG
>> Repair or replace harness.
Terminals
Continuity
BCM (+)
Tilt motor (–)
Connector
Terminal
Connector
Terminal
M4
102 (P)
M58
2 (P)
Yes
103 (R/B)
1 (R/B)
Yes
102 (P)
Ground
No
103 (R/B)
Ground
No
SGIA0441E
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