RM38T0EC
_58
Vehicle Interior
_112289
METER / GAUGE / DISPLAY
_0504968
METER / GAUGE SYSTEM
U
METER / GAUGE / DISPLAY METER / GAUGE SYSTEM TERMINALS OF ECU
COMBINATION METER ASSEMBLY
5,0.198 5.406,0.417
0.406,0.219
1.677,1.365 2.083,1.583
0.406,0.219
5.052,1.365 5.458,1.583
0.406,0.219
5.083,0.229 5.615,0.427
0.531,0.198
10
false
I288
1.823,1.396 2.281,1.594
0.458,0.198
10
false
I4
5.188,1.396 5.646,1.594
0.458,0.198
10
false
I5
a.
Measure the voltage and resistance according to the value(s) in the table below.
| Terminal No. (Symbol) | Terminal Description | Condition | Specified Condition |
|---|---|---|---|
| I4-1 (EP) - Body ground | Ground | Always | Below 1 Ω |
| I4-2 (ES) - Body ground | Ground | Always | Below 1 Ω |
| I4-5 (B) - Body ground | Auxiliary battery | Ignition switch off | 11 to 14 V |
| I4-6 (IG+) - Body ground | Ignition switch signal | Ignition switch off | Below 1 V |
| Ignition switch ON | 10.5 to 16 V | ||
| I4-8 (+S) - Body ground | Vehicle speed output signal | Ignition switch ON, wheel being rotated | Pulse generation
(See waveform 1) |
| I4-11 (SW) - Body ground | Brake fluid level warning switch signal | Ignition switch ON, brake fluid level not low (brake warning light off) → low (brake warning light on) | 11 to 14 V → Below 1 V |
| I4-12 (HZSW) - Body ground | Hazard warning signal switch signal | Hazard warning signal switch signal | 11 to 14 V → Below 1 V |
| I4-25 (SI) - Body ground | Vehicle speed input signal | Ignition switch ON, wheel being rotated | Pulse generation
(See waveform 1) |
| I4-28 (LST1) - Body ground*1 | Fuel lid operation signal | The following message (interrupt display) being displayed on the multi-information display:
"Ready to Refuel" |
Pulse generation
(See waveform 4) |
| The following message (interrupt display) being displayed on the multi-information display:
"Close Fuel Lid" |
Pulse generation
(See waveform 5) |
||
| I4-29 (BKL) - Body ground | Driver seat belt buckle switch signal | Ignition switch ON, driver seat belt unfastened → fastened | Below 1 V → 11 to 14 V |
| I5-2 (B) - Body ground | Auxiliary battery | Ignition switch off | 11 to 14 V |
| I4-37 (LP) - Body ground*2 | Security indicator signal | Security indicator light off → blinking | Below 2 V → Pulse generation |
| I5-5 (LL) - Body ground | Front turn signal flasher signal
(LH side) |
Turn indicator light (LH) blinking | 11 to 14 V → Below 1 V |
| Turn indicator light (LH) off | Below 1 V | ||
| I5-6 (LR) - Body ground | Front turn signal flasher signal
(RH side) |
Turn indicator light (RH) blinking | 11 to 14 V → Below 1 V |
| Turn indicator light (RH) off | Below 1 V | ||
| I5-7 (FR) - I5-25 (FE&B) | Fuel level signal | Ignition switch ON, fuel receiver gauge indicates F → E (fuel level warning light on) | Pulse generation
(See waveform 3) |
| I5-12 (MSTI) - Body ground | Steering pad switch signal | Ignition switch ON, up, down, left and right switches on steering pad switch not pushed | 4.8 to 5.2 V |
| I5-13 (ODO) - Body ground*3 | ODO/TRIP switch signal | Ignition switch ON, ODO/TRIP switch not pushed | 4.8 to 5.2 V |
| I5-14 (CANL) | CAN communication signal | - | - |
| I5-15 (TX-) | Local bus communication signal | - | - |
| I5-21 (TRNR) - Body ground | Side/rear turn signal flasher signal
(RH side) |
Turn indicator light (RH) blinking | 11 to 14 V → Below 1 V |
| Turn indicator light (RH) off | Below 1 V | ||
| I5-22 (TRNL) - Body ground | Side/rear turn signal flasher signal
(LH side) |
Turn indicator light (LH) blinking | 11 to 14 V → Below 1 V |
| Turn indicator light (LH) off | Below 1 V | ||
| I5-23 (FV) - Body ground | Power source for fuel sender gauge | Ignition switch ON | Pulse generation
(See waveform 2) |
| I5-25 (FE&B) - Body ground | Ground for fuel sender gauge | Always | Below 1 Ω |
| I5-26 (SW3) - Body ground*3 | Ground for trip switch | Always | Below 1 Ω |
| I5-29 (MSM+) - Body ground | Steering pad switch signal | Ignition switch ON, OK and back switches on steering pad switch not pushed | 4.8 to 5.2 V |
| I5-31 (CANH) | CAN communication signal | - | - |
| I5-32 (TX+) | Local bus communication signal | - | - |
| I288-1 (ET+)*3 | Ethernet communication signal | - | - |
| I288-2 (ET-)*3 | Ethernet communication signal | - | - |
*1: w/ Fuel Lid Opener System
*2: for TFTM Made Gasoline Model without Smart Entry and Start System
*3: for 12.3 Inch Type Multi-information Display
b.
Check for pulses according to the value(s) in the table below.
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
| Item | Condition |
|---|---|
| Tester connection | ·
I4-25 (SI) - Body ground ·
I4-8 (+S) - Body ground |
| Tool setting | 5 V/DIV., 20 ms./DIV. |
| 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.
2.958,0.896 3.417,1.094
0.458,0.198
10
false
GND
| Item | Condition |
|---|---|
| Tester connection | I5-23 (FV) - Body ground |
| Tool setting | 2.5 V/DIV., 20 ms./DIV. |
| Condition | Ignition switch ON |
| Specified Condition | 4.5 to 5.5 V |
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
| Item | Condition |
|---|---|
| Tester connection | I5-7 (FR) - I5-25 (FE&B) |
| Tool setting | 2.5 V/DIV., 20 ms./DIV. |
| Condition | Ignition switch ON, fuel level full → low (fuel level warning light on) |
- HINT:
-
(A) varies 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
2.76,0.927 3.333,1.125
0.573,0.198
10
false
GND
| Item | Condition |
|---|---|
| Tester Connection | I4-28 (LST1) - Body ground |
| Tool setting | 5 V/DIV., 20 ms./DIV. |
| Condition | The following message (interrupt display) being displayed on the multi-information display:
"Ready to Refuel" |
2.771,0.938 3.323,1.146
0.552,0.208
10
false
GND
| Item | Condition |
|---|---|
| Tester Connection | I4-28 (LST1) - Body ground |
| Tool setting | 5 V/DIV., 20 ms./DIV. |
| Condition | The following message (interrupt display) being displayed on the multi-information display:
"Close Fuel Lid" |
- HINT:
-
This waveform is output when the fuel lid opener switch is operated if the fuel lid is open and any of the following conditions are met:
- ·
The vehicle has been driven for 1 km (0.6 mile) or more at a speed of 50 km/h (31 mph) or more.
·30 minutes or more have elapsed since the fuel lid opener switch was operated.