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Volume 5

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LOCATION:    15.2a Electric Seat Adjustment (ESA)   >   23 Electrical Test Program - Testing


Electrical Test Program - Testing

Test step
DTC
Test scope
Test connection
Test condition
Nominal value
Possible cause/Remedy
1.0 Non - USA vehicle only
Continue to next step
     
2.0 Left front power seat motor group, fore/aft motor (M25m1)
Voltage supply

9
X55/3

10
Ignition: ON
Disconnect contact
strip (X55/3).
Press left front power seat switch (S22s3):
forward
backward







11 - 14 V
-11 to -14 V

Wiring,
Left front power seat switch (S22).
3.0 Left front power seat motor group, fore/aft motor (M25m1)
Resistance

9
X55/3

10
- 0.5 - 15 Left front power seat motor group, fore/aft motor (M25m1).
4.0 Left front power seat motor group, front raise/lower motor (M25m3)
Voltage supply

8
X55/3

7
Ignition: ON
Disconnect contact
strip (X55/3).
Press seat switch (S22s2):
seat front height up
seat front height down





11 - 14 V
-11 to -14 V

Wiring,
Left front power seat switch (S22).
5.0 Left front power seat motor group, front raise/lower motor (M25m3)
Resistance

7
X55/3

8
- 0.5 - 15 Left front power seat motor group, front raise/lower motor (M25m3).
6.0 Left front power seat motor group, rear raise/lower
motor (M25m2)
Voltage supply

12
X55/3

11
Ignition: ON
Disconnect contact
strip (X55/3).
Press seat switch (S22s2):
seat rear height up

seat rear height down





11 - 14 V

-11 to -14 V

Wiring,
Left front power seat switch (S22).
7.0 Left front power seat motor group, rear raise/lower
motor (M25m2)
Resistance

11
X55/3

12
- 0.5 - 15 Left front power seat motor group, rear raise/lower motor (M25m2).
8.0 Left front power seat motor group, backrest fore/aft
motor (M25m5)
Voltage supply

2
X55/3

1
Ignition: ON
Disconnect contact
strip (X55/3).
Press seat switch (S22s5):
backrest forward

backrest rearward





11 - 14 V

-11 to -14 V

Wiring,
Left front power seat switch (S22).
9.0 Left front power seat motor group, backrest fore/aft
motor (M25m5)
Resistance

2
X55/3

1
-
0.5 - 15 Left front power seat motor group, backrest fore/aft motor (M25m5).
10.0 Left front power seat motor group, head restraint raise/lower motor (M25m4)
Voltage supply

3
X55/3

4
Ignition: ON
Disconnect contact
strip (X55/3).
Press seat switch (S22s1):

head restraint up

head restraint down






11 - 14 V

-11 to -14 V

Wiring,
Left front power seat switch (S22).
11.0 Left front power seat motor group, head restraint raise/lower motor (M25m4)
Resistance

3
X55/3

4
-
0.5 - 15 Left front power seat motor group, head restraint raise/lower
motor (M25m4).

12.0 thru
16.0

Non - USA vehicle only
Continue to next step
     
17.0 Right front power seat motor group, fore/aft motor (M26m1)
Voltage supply
10
X55/4

9
Ignition: ON
Disconnect contact
strip (X55/4).
Press left front power seat switch (S23s3):
forward

backward






11 - 14 V

-11 to -14 V

Wiring,
Right front power seat switch (S23).
18.0 Right front power seat motor group, fore/aft motor (M26m1)
Resistance

10
X55/4

9
- 0.5 - 15 Right front power seat motor group, fore/aft motor (M26m1).
19.0 Right front power seat motor group, front raise/lower motor (M26m3)
Voltage supply

7
X55/4

8
Ignition: ON
Disconnect contact
strip (X55/4).
Press seat switch (S23s2):
seat front height up
seat front height down





11 - 14 V
-11 to -14 V
Wiring,
Right front power seat switch (S23).
20.0 Right front power seat motor group, front raise/lower motor (M26m3)
Resistance

8
X55/4

7
- 0.5 - 15 Right front power seat motor group, front raise/lower motor (M26m3).
21.0 Right front power seat motor group, rear raise/lower
motor (M26m2)
Voltage supply

11
X55/4

12
Ignition: ON
Disconnect contact
strip (X55/4).
Press seat switch (S23s2):
seat rear height up
seat rear height down





11 - 14 V
-11 to -14 V
Wiring,
Right front power seat switch (S23).
22.0 Right front power seat motor group, rear raise/lower
motor (M26m2)
Resistance

12
X55/4

11
- 0.5 - 15 Right front power seat motor group, rear raise/lower motor (M26m2).
23.0 Right front power seat motor group, backrest fore/aft
motor (M26m5)
Voltage supply

2
X55/4

1
Ignition: ON
Disconnect contact
strip (X55/4).
Press seat switch (S23s5):
backrest forward

backrest rearward





11 - 14 V

-11 to -14 V

Wiring,
Right front power seat switch (S23).
24.0 Right front power seat motor group, backrest fore/aft
motor (M26m5)
Resistance

2
X55/4

1
-
0.5 - 15 Right front power seat motor group, backrest fore/aft motor (M26m5).
25.0 Right front power seat motor group, head restraint raise/lower motor (M26m4)
Voltage supply

3
X55/4

4
Ignition: ON
Disconnect contact
strip (X55/4).
Press seat switch (S23s1):
head restraint up

head restraint down





11 - 14 V

-11 to -14 V

Wiring,
Right front power seat switch (S23).
26.0 Right front power seat motor group, head restraint raise/lower motor (M26m4)
Resistance

3
X55/4

4
-
0.5 - 15 Right front power seat motor group, head restraint raise/lower
motor (M26m4).
27.0 thru
30.0
Non - USA vehicles only
Continue to next step
     
31.0 Left front power seat
switch (S22)
Voltage supply

2
(4)
2
(2)
S22

S22



1
(4)
2
(1)
Ignition: ON
Disconnect connector (4) from seat switch (S22)
Disconnect connectors (1, 2) from seat switch (S22)



11 - 14 V



11 - 14 V
Wiring,
Convenience relay module (K24).

32.0

Right front power seat
switch (S23)
Voltage supply

2
(6)

 


2
(8)

S23

 

S23


2
(5)



1
(8)
Ignition: ON
Disconnect connectors (5, 6) from seat switch (S23)
Disconnect connector (8) from seat switch (S23)




11 - 14 V


11 - 14 V
Wiring,
Convenience relay module (K24).
33.0
Up to 2/97
Convenience relay
module (K24)
Voltage supply

5
K24

3
Ignition: OFF
Disconnect module (K24)


11 - 14 V
Wiring
   
5
2
  11 - 14 V
 
   
5

4
Ignition key in position "1" 11 - 14 V  

 
Ignition: OFF
Disconnect module (K24)

 

 
As of 3/97
 

6
K24

8

 

11 - 14 V
 
   
6
3
  11 - 14 V
 
   
6

2
Ignition key in position "1" 11 - 14 V  
   

6



4
Ignition key in position "1"
11 - 14 V
 
34.0
Up to 2/97
Door switch (S17/3, S17/4)
Voltage supply

6
K24

2
Ignition: OFF
Disconnect module (K24)

Front doors: closed

Left front door: open

Left front door: closed

Right front door: open





0-2 V


11 - 14 V


0-2 V


11 - 14 V
Wiring,
Left door switch (S17/3),
Right door switch (S17/4),
Pneumatic control module (A37/2),
Convenience control module (N57).
As of 3/97
 


3

 

 





3

K24









K24



1

 

 





7

Ignition: OFF
Disconnect module (K24)

Left front door: open

Left front door: closed


Right front door: open

Right front door: closed




11 - 14 V


0-2 V



11 - 14 V


0-2 V
Wiring,
Left door switch (S17/3),
Right door switch (S17/4),