- LG - SB*3
- LG - BE*4
| Last Modified: 11-20-2023 | 6.11:8.1.0 | Doc ID: RM100000001MUDG |
| Model Year Start: 2020 | Model: Camry | Prod Date Range: [03/2020 - 10/2020] |
| Title: METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: TERMINALS OF ECU; 2020 MY Camry [03/2020 - 10/2020] | ||
TERMINALS OF ECU
COMBINATION METER ASSEMBLY
(a) Measure the voltage and resistance and check for pulses according to the value(s) in the table below.
|
Terminal No. (Symbol) |
Wiring Color |
Signal Input/Output |
Condition |
Specified Condition |
|---|---|---|---|---|
|
K21-1 (ILL-) - Body ground |
LA-L - Body ground |
Output |
Taillights off → on |
Below 1 V → Pulse generation |
|
K21-2 (EP) - Body ground |
W-B - Body ground |
- |
Always |
Below 1 Ω |
|
K21-4 (INT) - Body ground |
L - Body ground |
Output |
Ignition switch ON, OK switch on steering pad switch not pushed |
8 to 15 V |
|
K21-5 (SI) - Body ground |
W - Body ground |
Input |
Ignition switch ON, wheel being rotated |
Pulse generation (See waveform 1) |
|
K21-6 (+S) - Body ground |
L - Body ground |
Output |
Ignition switch ON, wheel being rotated |
Pulse generation (See waveform 1) |
|
K21-7 (VCM) - Body ground |
BE - Body ground |
Input |
Engine started, vacuum warning switch off (brake warning light off) → on (brake warning light on) |
11 to 14 V → Below 1 V |
|
K21-9 (S)*1 - Body ground |
LA-R - Body ground |
Input |
Engine started → not started |
11 to 14 V → Below 1 V |
|
K21-12 (SW) - Body ground |
G - Body ground |
Input |
Ignition switch ON, brake fluid level not low (brake warning light off) → low (brake warning light on) |
11 to 14 V → Below 1 V |
|
K21-14 (FR) - K21-33 (FE) |
|
Input |
Ignition switch ON, fuel level full → low (fuel level warning light on) |
Pulse generation (See waveform 2) |
|
K21-15 (FV) - Body ground |
|
Input |
Ignition switch ON |
Pulse generation (See waveform 3) |
|
K21-17 (WLVL) - Body ground |
LG - Body ground |
Input |
Ignition switch ON, washer fluid level not low → low |
11 to 14 V → Below 1 V |
|
K21-18 (RLMT) -Body ground |
BE - Body ground |
Output |
Ignition switch ON, rear seat belt warning light LH off → on |
11 to 14 V → Below 1 V |
|
K21-19 (RCMT) -Body ground |
R - Body ground |
Output |
Ignition switch ON, rear seat belt warning light center off → on |
11 to 14 V → Below 1 V |
|
K21-20 (RRMT) -Body ground |
G - Body ground |
Output |
Ignition switch ON, rear seat belt warning light RH off → on |
11 to 14 V → Below 1 V |
|
K21-21 (ES) - Body ground |
W-B - Body ground |
- |
Always |
Below 1 Ω |
|
K21-24 (RLSB) - Body ground |
SB - Body ground |
Input |
Ignition switch ON, rear seat belt LH unfastened → fastened |
Below 1 V → 11 to 14 V |
|
K21-25 (RCSB) - Body ground |
B - Body ground |
Input |
Ignition switch ON, rear seat belt center unfastened → fastened |
Below 1 V → 11 to 14 V |
|
K21-26 (RRSB) - Body ground |
LG - Body ground |
Input |
Ignition switch ON, rear seat belt RH unfastened → fastened |
Below 1 V → 11 to 14 V |
|
K21-27 (OILW) - Body ground |
W - Body ground |
Input |
Ignition switch ON, engine oil level not low → low |
Below 1 V → 11 to 14 V |
|
K21-28 (MSM+) - Body ground |
GR - Body ground |
Input |
Ignition switch ON, up, down, right and left switches on steering pad switch not pushed |
4.8 to 5.2 V |
|
K21-29 (MSTI) - Body ground |
R - Body ground |
Input |
Ignition switch ON, OK and back switches on steering pad switch not pushed |
4.8 to 5.2 V |
|
K21-31 (CANL) |
W |
Input/Output |
- |
- |
|
K21-32 (CANH) |
B |
Input/Output |
- |
- |
|
K21-33 (FE) - Body ground |
|
- |
Always |
Below 1 Ω |
|
K21-35 (FR2) - K21-33 (FE)*3 |
V - SB |
Input |
Ignition switch ON, fuel level full → low (fuel level warning light on) |
Pulse generation (See waveform 2) |
|
K21-36 (TX+)*2 |
G |
Input/Output |
- |
- |
|
K21-37 (TX-)*2 |
W |
Input/Output |
- |
- |
|
K21-39 (IG+) - Body ground |
LA-GR - Body ground |
Input |
Ignition switch off → Ignition switch ON |
Below 1 V → 11 to 14 V |
|
K21-40 (B) - Body ground |
LA-B - Body ground |
Input |
Always |
11 to 14 V |
|
K20-1 (ODO) - Body ground |
LA-L - Body ground |
Input |
Ignition switch ON, ODO/TRIP switch not pushed |
4.8 to 5.2 V |
|
K20-2 (TR) - Body ground |
L - Body ground |
Input |
Ignition switch ON, light control rheostat up switch and light control rheostat down switch not pushed |
4.8 to 5.2 V |
|
K20-3 (HAZ) - Body ground |
LA-R - Body ground |
Input |
Hazard warning signal switch off → pushed |
11 to 14 V → Below 1 V |
|
K20-5 (SW3) - Body ground |
LA-B - Body ground |
- |
Always |
Below 1 Ω |
|
K20-7 (LR) - Body ground |
LA-G - Body ground |
Output |
Ignition switch ON, RH turn indicator light off → blinking |
Below 1 V → 11 to 14 V ←→ Below 1 V |
|
K20-8 (B) - Body ground |
LA-B - Body ground |
Input |
Always |
11 to 14 V |
|
K20-10 (TRNL) - Body ground |
BE - Body ground |
Output |
Ignition switch ON, LH turn indicator light off → blinking |
Below 1 V → 11 to 14 V ←→ Below 1 V |
|
K20-11 (LL) - Body ground |
LA-LG - Body ground |
Output |
Ignition switch ON, LH turn indicator light off → blinking |
Below 1 V → 11 to 14 V ←→ Below 1 V |
|
K20-13 (TRNR) - Body ground |
BE - Body ground |
Output |
Ignition switch ON, RH turn indicator light off → blinking |
Below 1 V → 11 to 14 V ←→ Below 1 V |
- *1: for 2GR-FKS
- *2: for 8 Inch Display Type Radio and Display Receiver Assembly
- *3: for AWD
- *4: for 2WD
-
Waveform 1:
Item
Condition
Tester connection
- K21-5 (SI) - Body ground
- K21-6 (+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.
-
Waveform 2:
Item
Condition
*: for AWD Tester connection
- K21-14 (FR) - K21-33 (FE)
- K21-35 (FR2) - K21-33 (FE)*
Tool setting
2.5 V/DIV., 20 ms./DIV.
Condition
Ignition switch ON, fuel level full → low (fuel level warning light on)
HINT:
The magnitude of the voltage (A) changes as shown in the following tables.
-
for 2WD:
Condition
Voltage
Ignition switch ON, fuel level full
4.0 to 4.6 V
Ignition switch ON, fuel level low (fuel level warning light on)
0.3 to 1.5 V
-
for AWD:
Condition
Voltage
K21-14 (FR) - K21-33 (FE)
K21-35 (FR2) - K21-33 (FE)
Ignition switch ON, fuel level full
4.2 to 4.6 V
4.0 to 4.6 V
Ignition switch ON, fuel level 1/2
4.2 to 4.6 V
0.3 to 0.7 V
Ignition switch ON, fuel level low (fuel level warning light on)
0.3 to 1.5 V
0.3 to 0.7 V
-
Waveform 3:
Item
Condition
Tester connection
K21-15 (FV) - Body ground
Tool setting
2.5 V/DIV., 20 ms./DIV.
Condition
Ignition switch ON
Standard voltage
4.5 to 5.5 V
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