TERMINALS OF ECU
1. COMBINATION METER ASSEMBLY
(a) Measure the voltage, resistance and check for pulses according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
C9-1 (CANH) - Body ground |
G - Body ground |
CAN communication line |
- |
- |
C9-2 (CANL) - Body ground |
W - Body ground |
CAN communication line |
- |
- |
C9-4 (MSCH) - Body ground |
B - Body ground |
Local bus communication line |
- |
- |
C9- 5 (MSCL) - Body ground |
W - Body ground |
Local bus communication line |
- |
- |
C9-7 (EL) - Body ground |
V - Body ground |
LH turn indicator light signal (Input) |
Ignition switch ON, LH turn signal switch off |
11 to 14 V |
Ignition switch ON, LH turn signal switch on |
Below 1 V |
|||
C9-8 (ER) - Body ground |
GR - Body ground |
RH turn indicator light signal (Input) |
Ignition switch ON, RH turn signal switch off |
11 to 14 V |
Ignition switch ON, RH turn signal switch on |
Below 1 V |
|||
C9-9 (SW) - Body ground |
R - Body ground |
Turn switch signal |
Ignition switch ON, LH and RH turn signal switch off |
11 to 14 V |
Ignition switch ON, LH or RH turn signal switch on |
Below 1 V |
|||
C9-11 (BKSW) - Body ground |
L - Body ground |
Stop light switch signal |
Stop light switch on |
11 to 14 V |
Stop light switch off |
Below 1 V |
|||
C9-13 (HAZ) - Body ground |
Y - Body ground |
Hazard warning signal switch signal |
Ignition switch ON, hazard warning signal switch not pressed |
11 to 14 V |
Ignition switch ON, hazard warning signal switch pressed |
Below 1 V |
|||
C9-15 (ILL-) - Body ground |
BE - Body ground |
Illumination signal |
Headlight dimmer switch off |
Below 1 V |
Headlight dimmer switch in tail or head position |
Pulse generation |
|||
C9-17 (EP) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
C9-18 (ES) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
C9-19 (B) - Body ground |
P - Body ground |
Battery |
Always |
11 to 14 V |
C9-20 (IG+) - Body ground |
BE - Body ground |
Ignition switch signal |
Ignition switch off |
Below 1 V |
Ignition switch ON |
11 to 14 V |
|||
C9-21 (L) - C9-23 (E3) |
BE - G |
Fuel level signal |
Ignition switch ON, fuel level full |
Below 1 V |
Ignition switch ON, fuel level low (fuel level warning light on) |
4.5 to 9 V |
|||
C9-25 (S) - Body ground |
LG - Body ground |
Oil pressure signal |
Ignition switch ON, oil pressure warning OFF |
11 to 14 V |
Ignition switch ON, oil pressure warning ON |
Below 1 V |
|||
C9-26 (WLVL) - Body ground*1 |
B - Body ground |
Washer fluid level signal |
Ignition switch ON, washer fluid level not low |
11 to 14 V |
Ignition switch ON, washer fluid level low |
Below 1 V |
|||
C9-28 (SW) - Body ground*2 |
LG - Body ground |
Brake fluid level signal |
Ignition switch ON, brake fluid level not low |
11 to 14 V |
Ignition switch ON, brake fluid level low |
Below 1 V |
|||
C9-30 (MSM+) - Body ground |
P - Body ground |
Steering pad switch assembly signal |
Ignition switch ON, enter, top and back switches on steering pad switch assembly not pushed |
4.8 to 5.2 V |
Ignition switch ON, enter, top or back switches on steering pad switch assembly pushed |
Below 1 V |
|||
C9-32 (MSSL) - Body ground |
SB - Body ground |
Steering pad switch assembly signal |
Ignition switch ON, enter, top and back switches on steering pad switch assembly not pushed |
4.8 to 5.2 V |
Ignition switch ON, enter, top or back switches on steering pad switch assembly pushed |
Below 1 V |
|||
C9-34 (MSTI) - Body ground |
L - Body ground |
Steering pad switch assembly signal |
Ignition switch ON, up, down, right, and left switches on steering pad switch assembly not pushed |
4.8 to 5.2 V |
Ignition switch ON, up, down, right, or left switches on steering pad switch assembly pushed |
Below 1 V |
|||
C9-36 (OIL) - Body ground*3 |
W - Body ground |
Oil level switch signal |
Ignition switch ON, oil level low |
11 to 14 V |
Ignition switch ON, oil level not low |
Below 1 V |
|||
C9-37 (VCM) - Body ground*2*3 |
LG - Body ground |
Vacuum switch signal |
Ignition switch ON, vacuum pressure not low |
11 to 14 V |
Ignition switch ON, vacuum pressure low |
Below 1 V |
|||
C9-39 (SI) - Body ground |
G - Body ground |
Speed signal for other system (Input) |
Ignition switch ON, wheel being rotated |
Pulse generation (See waveform 1) |
C9-40 (+S) - Body ground |
V - Body ground |
Speed signal for other system (Output) |
Ignition switch ON, wheel being rotated |
Pulse generation (See waveform 1) |
C10-1 (B) - Body ground |
V - Body ground |
Battery |
Always |
11 to 14 V |
C10-3 (RRT) - Body ground |
L - Body ground |
RH turn indicator light signal (Input) |
Ignition switch ON, RH turn signal switch off |
Below 1 V |
Ignition switch ON, RH turn signal switch on |
11 to 14 V ←→ Below 1 V |
|||
C10-5 (RLT) - Body ground |
Y - Body ground |
LH turn indicator light signal (Output) |
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 |
|||
C10-9 (LL) - Body ground |
BE - Body ground |
LH turn indicator light signal (Output) |
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 |
|||
C10-11 (TLT) - Body ground*4 |
V - Body ground |
LH turn indicator light signal (Output) |
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 |
|||
C10-12 (TRT) - Body ground*4 |
SB - Body ground |
RH turn indicator light signal (Output) |
Ignition switch ON, RH turn signal switch off |
Below 1 V |
Ignition switch ON, RH turn signal switch on |
11 to 14 V ←→ Below 1 V |
|||
C10-13 (B) - Body ground |
W - Body ground |
Battery |
Always |
11 to 14 V |
C10-10 (LR) - Body ground |
SB - Body ground |
RH turn indicator light signal (Output) |
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 |
(1) Waveform 1 (Reference):
Item |
Condition |
---|---|
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.
Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination
Meter
DESCRIPTION
The stereo component amplifier assembly receives a vehicle speed signal from
the combination meter assembly to control the ASL function.
HINT:
A voltage of 12 V or 5 V is output from each ECU and then input to the
combination meter assembly. The signal is changed to a pu ...
Air Outlet Control Servo Motor
Inspection
INSPECTION
PROCEDURE
1. INSPECT MODE CONTROL SERVO MOTOR
(a) Inspect the servo motor operation.
(1) When 12V is applied between terminals 4 (IGN) and 1 (GND), and 0V
is applied between terminals 2 (SIG) and 1 (GND), check that the line connecting
the 2 notches ...
Installation
INSTALLATION
CAUTION / NOTICE / HINT
HINT:
Use the same procedure for the RH side and LH side.
The procedure listed below is for the LH side.
PROCEDURE
1. INSTALL FRONT COIL SPRING
(a) Install SST to the front coil spring, and secure SST in a vise.
SST: 09727-00 ...