RM35X0E _58 Vehicle Interior _078337 METER / GAUGE / DISPLAY _0379907 METER / GAUGE SYSTEM U

METER / GAUGE / DISPLAY  METER / GAUGE SYSTEM  TERMINALS OF ECU  


COMBINATION METER ASSEMBLY


E391347E05
1.5,0.667 1.917,0.917 0.417,0.25 5.167,0.667 5.583,0.917 0.417,0.25 1.583,0.708 2.042,0.906 0.458,0.198 10 false N22 5.26,0.719 5.719,0.917 0.458,0.198 10 false N23

a.

Disconnect the N22 combination meter assembly connector.


b.

Measure the voltage and resistance according to the value(s) in the table below.

Terminal No. Wiring Color Terminal Description Condition Specified Condition
N22-38 (IG+) - Body ground B - Body ground*1
P - Body ground*2 		IG power supply Ignition switch off Below 1 V
Ignition switch ON 11 to 14 V*1
10.5 to 16 V*2
N22-21 (ABOF) - Body ground*3 B - Body ground IG power supply Ignition switch off Below 1 V
Ignition switch ON 11 to 14 V
N22-22 (B) - Body ground SB - Body ground +B power supply Always 11 to 14 V
N22-1 (B) - Body ground B - Body ground +B power supply Always 11 to 14 V
N22-35 (ILL-) - Body ground SB - Body ground Illumination signal Light control switch off Below 1 V
Light control switch in tail or head position 11 to 14 V
N22-19 (EP) - Body ground W-B - Body ground Ground Always Below 1 Ω
N22-23 (ET) - Body ground BR - Body ground Ground Always Below 1 Ω

*1: w/o Stop and Start System

*2: w/ Stop and Start System

*3: w/o Airbag System



c.

Reconnect the N22 combination meter assembly connector.


d.

Measure the voltage and resistance and check for pulses according to the value(s) in the table below.

Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
N22-20 (SI) - Body ground P - Body ground Speed signal for other system (Input) Ignition switch ON, wheel being rotated Pulse generation
(See waveform 1)
N22-36 (+S) - Body ground V - Body ground Speed signal for other system (Output) Ignition switch ON, wheel being rotated Pulse generation
(See waveform 1)
N22-14 (FV) - Body ground Y - Body ground Fuel sender gauge (Power source) Ignition switch ON Pulse generation
(See waveform 3)
N22-31 (FR) - N22-24 (FE&B) R - W Fuel level signal Ignition switch ON, fuel level full → low (fuel level warning light on) Pulse generation
(See waveform 2)
N22-24 (FE&B) - Body ground W - Body ground Fuel sender gauge (Ground) Always Below 1 Ω
N23-36 (RLSB) - Body ground*1 V - Body ground Rear LH seat belt warning light output signal Ignition switch ON, rear seat belt warning light (LH) off 11 to 14 V
Ignition switch ON, rear seat belt warning light (LH) on Below 1 V
N23-19 (RCSB) - Body ground*1 LG - Body ground
·

Rear No. 1 center seat belt buckle switch and occupant detection signal*4

·

Rear No. 3 center seat belt buckle switch and occupant detection signal*9


·

Rear No. 1 center seat occupied, seat belt fastened*4

·

Rear No. 3 center seat occupied, seat belt fastened*9


11 to 14 V
·

Rear No. 1 center seat occupied, seat belt unfastened*4

·

Rear No. 3 center seat occupied, seat belt unfastened*9


Below 1 V
N23-35 (RRSB) - Body ground*1 L - Body ground Rear RH seat belt warning light output signal Ignition switch ON, rear seat belt warning light (RH) off 11 to 14 V
Ignition switch ON, rear seat belt warning light (RH) on Below 1 V
N23-21 (RDC) - Body ground*4 B - Body ground Rear No. 2 RH seat belt buckle switch and occupant detection signal Rear No. 2 RH seat occupied, seat belt fastened Below 100 Ω
Rear No. 2 RH seat occupied, seat belt unfastened 1 MΩ or higher
N23-37 (RDC) - Body ground*4 LG - Body ground Rear No. 2 LH seat belt buckle switch and occupant detection signal Rear No. 2 LH seat belt buckle switch and occupant detection signal Below 100 Ω
Rear No. 2 LH seat occupied, seat belt unfastened 1 MΩ or higher
N23-22 (RBE+) - Body ground*5 P - Body ground Rear No. 3 RH seat belt buckle switch and occupant detection signal Rear No. 3 RH seat occupied, seat belt fastened Below 100 Ω
Rear No. 3 RH seat occupied, seat belt unfastened 1 MΩ or higher
N23-38 (LBE-) - Body ground*6 GR - Body ground Rear No. 3 LH seat belt buckle switch and occupant detection signal Rear No. 3 LH seat belt buckle switch and occupant detection signal Below 100 Ω
Rear No. 3 LH seat occupied, seat belt unfastened 1 MΩ or higher
N22-25 (CANL) W CAN communication line - -
N22-9 (CANH) R CAN communication line - -
N22-10 (MSCL)*2 W Local bus communication line - -
N22-27 (MSCH)*2 B Local bus communication line - -
N22-28 (CXPI)*3 GR CXPI communication line - -
N22-15 (MSTI) - Body ground*10 BE - Body ground Steering pad switch signal Ignition switch ON, up, down, right and left switches on steering pad switch assembly not pushed 4.3 to 5.2 V
Ignition switch ON, left switch on steering pad switch pushed Below 0.6 V
Ignition switch ON, up switch on steering pad switch pushed 1.0 to 2.2 V
Ignition switch ON, down switch on steering pad switch pushed 2.3 to 3.4 V
Ignition switch ON, right switch on steering pad switch pushed 3.4 to 4.5 V
N22-32 (MSM+) - Body ground*10 LG - Body ground Steering pad switch signal Ignition switch ON, enter and back switches on steering pad switch not pushed 4.3 to 5.2 V
Ignition switch ON, enter switch on steering pad switch pushed Below 0.6 V
Ignition switch ON, back switch on steering pad switch pushed 1.0 to 2.2 V
N23-34 (PBKL) - Body ground G - Body ground Front passenger seat belt buckle switch and occupant detection signal Ignition switch ON, front seat belt warning light on Below 1 V
Ignition switch ON, front seat belt warning light off 11 to 14 V
N23-23 (S) - Body ground W - Body ground Oil pressure signal Engine started 11 to 14 V
Engine not started Below 1 V
N23-30 (S) - Body ground LG - Body ground Fuel filter level warning switch Ignition switch ON, fuel filter warning light off 11 to 14 V
Ignition switch ON, fuel filter warning light on Below 1 V
N22-37 (R) - Body ground L - Body ground Back-up light switch signal Ignition switch off, shift lever not in R Below 1 V
Ignition switch ON, shift lever in R 11 to 14 V
N23-31 (OILW) - Body ground Y - Body ground Engine oil level signal Ignition switch ON, engine oil level not low Below 1 V
Ignition switch ON, engine oil level low 11 to 14 V
N23-7 (LP) - Body ground W - Body ground Security indicator signal Security indicator light off Below 2 V
Security indicator light blinking Pulse generation
N23-17 (HAZ) - Body ground W - Body ground Hazard warning signal switch signal (Output) Hazard warning signal switch off 11 to 14 V
Hazard warning signal switch on Below 1 V
N23-16 (SW) - Body ground B - Body ground Brake fluid level signal Ignition switch ON, brake fluid level full Below 1 V
Ignition switch ON, brake fluid level low (brake fluid level warning light on) 11 to 14 V
N23-32 (VCM) - Body ground SB - Body ground Vacuum warning switch signal Vacuum warning switch off 11 to 14 V
Vacuum warning switch on Below 1 V
N23-6 (TRNR) - Body ground R - Body ground Rear turn signal light RH signal Ignition switch ON, RH turn indicator light off Below 1 V
Ignition switch ON, RH turn indicator light blinking 11 to 14 V ←→ Below 1 V
N23-5 (TRNL) - Body ground GR - Body ground Rear turn signal light LH signal Ignition switch ON, LH turn indicator light off Below 1 V
Ignition switch ON, LH turn indicator light blinking 11 to 14 V ←→ Below 1 V
N23-2 (LR) - Body ground R - Body ground Front/Side turn signal light RH signal Ignition switch ON, RH turn indicator light off Below 1 V
Ignition switch ON, RH turn indicator light blinking 11 to 14 V ←→ Below 1 V
N23-1 (LL) - Body ground L - Body ground Front/Side turn signal light LH signal Ignition switch ON, LH turn indicator light off Below 1 V
Ignition switch ON, LH turn indicator light blinking 11 to 14 V ←→ Below 1 V
N23-8 (RRMT) - Body ground*1*8,*4*7 Y - Body ground
·

Rear No. 1 RH seat belt warning light output signal*4

·

Rear No. 2 RH seat belt warning light output signal*9


·

Ignition switch ON, rear No. 1 RH seat belt warning light off*8

·

Ignition switch ON, rear No. 2 RH seat belt warning light off*4


11 to 14 V
·

Ignition switch ON, rear No. 1 RH seat belt warning light on*8

·

Ignition switch ON, rear No. 2 RH seat belt warning light off*4


Below 1 V
N23-9 (RLMT) - Body ground*1*8,*4*7 L - Body ground
·

Rear No. 1 LH seat belt warning light output signal*4

·

Rear No. 2 LH seat belt warning light output signal*9


·

Ignition switch ON, rear No. 1 LH seat belt warning light off*8

·

Ignition switch ON, rear No. 2 LH seat belt warning light off*4


11 to 14 V
·

Ignition switch ON, rear No. 1 LH seat belt warning light on*8

·

Ignition switch ON, rear No. 2 LH seat belt warning light off*4


Below 1 V
N23-25 (RCMT) - Body ground*1*8,*7*9 B - Body ground*8
G - Body ground*7
·

Rear No. 1 center seat belt warning light output signal*8

·

Rear No. 3 center seat belt warning light output signal*7


·

Ignition switch ON, rear center seat belt warning light off*8

·

Ignition switch ON, rear No. 3 center seat belt warning light off*9


11 to 14 V
·

Ignition switch ON, rear center seat belt warning light on*8

·

Ignition switch ON, rear No. 3 center seat belt warning light on*9


Below 1 V
N23-10 (R2RM) - Body ground*1*7 R - Body ground Rear No. 1 RH seat belt warning light output signal Ignition switch ON, rear No. 1 RH seat belt warning light off 11 to 14 V
Ignition switch ON, rear No. 1 RH seat belt warning light on Below 1 V
N23-11 (SW) - Body ground*6 SB - Body ground Rear No. 3 LH seat belt warning light output signal Ignition switch ON, rear No. 3 LH seat belt warning light off 11 to 14 V
Ignition switch ON, rear No. 3 LH seat belt warning light on Below 1 V
N23-26 (R2LM) - Body ground*1*7 W - Body ground Rear No. 1 LH seat belt warning light output signal Ignition switch ON, rear No. 1 LH seat belt warning light off 11 to 14 V
Ignition switch ON, rear No. 1 LH seat belt warning light on Below 1 V
N23-27 (B) - Body ground*5 BE - Body ground Rear No. 3 RH seat belt warning light output signal Ignition switch ON, rear No. 3 RH seat belt warning light off 11 to 14 V
Ignition switch ON, rear No. 3 RH seat belt warning light on Below 1 V

*1: w/ Rear Seat Belt Warning

*2: for Radio and Display Type

*3: for Radio Receiver Type

*4: w/ Rear No. 2 Seat Belt Warning

*5: w/ Rear No. 3 RH Seat Belt Warning

*6: w/ Rear No. 3 LH Seat Belt Warning

*7: for Wagon

*8: except Wagon

*9: w/ Rear No. 3 Center Seat Belt Warning

*10: for Multi-information Display Type


If the result is not as specified, the combination meter assembly may be malfunctioning.

i.
E267248N02
2.969,1.198 3.323,1.396 0.354,0.198 10 false GND 1.156,1.625 1.365,1.833 0.208,0.208 10 false A

Waveform 1 (Reference):

Item Condition
Tester Connection
·

N22-20 (SI) - Body ground

·

N22-36 (+S) - Body ground


Tool setting 5 V/DIV., 20 ms./DIV.
Vehicle condition Ignition switch ON wheel being rotated

HINT:

When the system is functioning normally, one wheel revolution generates 4 pulses. As the vehicle speed increases, the width indicated by (A) in the illustration narrows.



ii.
E400349N01
2.958,0.917 3.396,1.219 0.438,0.302 10 false GND 0.615,0.646 0.771,0.844 0.156,0.198 10 false A 1.823,0.646 1.979,0.844 0.156,0.198 10 false A

Waveform 2:

Item Condition
Tester Connection N22-31 (FR) - N22-24 (FE&B)
Tool setting 2.5 V/DIV., 20 ms./DIV.
Vehicle condition Ignition switch ON, fuel level full → low (fuel level warning light on)

HINT:

(A) will differ depending on the fuel level.

·

Fuel level full: 4.2 to 4.6 V

·

Fuel level low (fuel level warning light on): 0.3 to 0.7 V




iii.
E400350N01
2.958,0.896 3.417,1.094 0.458,0.198 10 false GND

Waveform 3:

Item Condition
Tester connection N22-14 (FV) - Body ground
Tool setting 2.5 V/DIV., 20 ms./DIV.
Vehicle condition Ignition switch ON

HINT:

Ignition switch ON (4.5 to 5.5 V)