CHECK COMBINATION METER ASSEMBLY
Measure the voltage, resistance and waveform according to the value(s) in the table below.
Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
---|---|---|---|---|
D66-1 (RLMT) - Body ground | B - Body ground | Rear seat belt LH warning light signal | Rear seat belt LH fastened within 30 seconds of opening rear door with ignition switch ON | 11 to 14 V |
Rear seat belt LH unfastened within 30 seconds of opening rear door with ignition switch ON | Below 1 V | |||
D66-2 (RCMT) - Body ground | P - Body ground | Rear seat center belt warning light signal | Rear seat center belt fastened within 30 seconds of opening rear door with ignition switch ON | 11 to 14 V |
Rear seat center belt unfastened within 30 seconds of opening rear door with ignition switch ON | Below 1 V | |||
D66-3 (RRMT) - Body ground | Y - Body ground | Rear seat belt RH warning light signal | Rear seat belt RH fastened within 30 seconds of opening rear door with ignition switch ON | 11 to 14 V |
Rear seat belt RH unfastened within 30 seconds of opening rear door with ignition switch ON | Below 1 V | |||
D66-4 (STP1) - Body ground*3 | V - Body ground | Tire pressure warning reset switch signal | Ignition switch ON, tire pressure warning reset switch pressed and held | Below 1.5 V |
Ignition switch ON, tire pressure warning reset switch off | 8 to 15 V | |||
D66-5 (SI) - Body ground | V - Body ground | Speed signal for other system (Input) | Driving at approximately 20 km/h (12 mph) | Pulse generation (See waveform) |
D66-6 (+S) - Body ground | Y - Body ground | Speed signal for other system (Output) | Driving at approximately 20 km/h (12 mph) | Pulse generation (See waveform) |
D66-7 (PKBI) - Body ground | L - Body ground*1 P - Body ground*2 |
Front passenger side seat belt buckle switch signal | Ignition switch ON, front passenger side seat belt fastened and front passenger seat occupied | 11 to 14 V |
Ignition switch ON, front passenger side seat belt unfastened and front passenger seat occupied | Below 1 V | |||
D66-8 (S) - Body ground | R - Body ground | Fuel filter assembly signal | Ignition switch ON, "Drain water from fuel filter." and "Replace fuel filter." not displayed*7 | 11 to 14 V |
Ignition switch ON, "DRAIN WATER FROM FUEL FILTER." and "REPLACE FUEL FILTER." not displayed*8 | ||||
Ignition switch ON, "Drain water from fuel filter." or "Replace fuel filter." displayed*7 | Below 1 V | |||
Ignition switch ON, "DRAIN WATER FROM FUEL FILTER." or "REPLACE FUEL FILTER." displayed*8 | ||||
D66-11 (EFI) - Body ground | P - Body ground | MIL (malfunction indicator lamp) signal | Ignition switch ON, MIL (malfunction indicator lamp) on | Below 1 V |
Ignition switch ON, MIL (malfunction indicator lamp) off | 11 to 14 V | |||
D66-12 (SW) - Body ground | G - Body ground | Brake system warning light (red indicator) signal | Ignition switch ON, brake system warning light (red indicator) on | Below 1 V |
Ignition switch ON, brake system warning light (red indicator) off | 11 to 14 V | |||
D66-15 (E) - Body ground | BR - Body ground | Fuel sender gauge signal | Always | Below 1 Ω |
D66-16 (L) - Body ground | V - Body ground | Fuel sender gauge signal | Fuel F (full tank) → E (empty) | 4.5 to 9 V |
Ignition switch ON | Below 1 V | |||
D66-17 (TIRE) - Body ground*3 | R - Body ground | Tire pressure warning light signal | Ignition switch ON, tire pressure warning light off | Below 1 V |
Ignition switch ON, tire pressure warning light on | 11 to 14 V | |||
D66-19 (STP2) - Body ground*6 | V - Body ground | AFS switch signal | AFS switch off | Below 1 V |
AFS switch on | 11 to 14 V | |||
D66-21 (ET) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
D66-24 (MSD) - Body ground | Y - Body ground | Rear seat inner belt signal (LH side) | Ignition switch ON, rear LH seat belt unfastened | Below 1 V |
Ignition switch ON, rear LH seat belt fastened | 11 to 14 V | |||
D66-25 (MSTI) - Body ground | P - Body ground | Rear seat inner belt signal (Center) | Ignition switch ON, rear center seat belt unfastened | Below 1 V |
Ignition switch ON, rear center seat belt fastened | 11 to 14 V | |||
D66-26 (MSFM) - Body ground | B - Body ground | Rear seat inner belt signal (RH side) | Ignition switch ON, rear RH seat belt unfastened | Below 1 V |
Ignition switch ON, rear RH seat belt fastened | 11 to 14 V | |||
D66-28 (MSM+) - Body ground*7 | GR - Body ground | Steering pad switch signal | Ignition switch ON, enter, trip 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, trip switch on steering pad switch pushed | 1.0 to 2.2 V | |||
Ignition switch ON, back switch on steering pad switch pushed | 2.3 to 3.4 V | |||
D66-28 (MSM+) - Body ground*8 | GR - Body ground | Steering pad switch signal | Ignition switch ON, disp and trip switches on steering pad switch not pushed | 4.3 to 5.2 V |
Ignition switch ON, disp switch on steering pad switch pushed | Below 0.6 V | |||
Ignition switch ON, trip switch on steering pad switch pushed | 1.0 to 2.2 V | |||
D66-31 (CANL) - Body ground | W - Body ground | CAN communication line | - | - |
D66-32 (CANH) - Body ground | L - Body ground | CAN communication line | - | - |
D66-33 (MSSL) - Body ground*7 | BR - 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 | |||
D66-34 (TEMP) - Body ground | W - Body ground | Ambient temperature sensor signal | Ambient temperature 25°C (77°F) | 1.6 to 1.8 Ω*5 |
D66-35 (TX1+) - Body ground | G - Body ground | Ambient temperature sensor gauge signal | Always | Below 1 Ω |
D66-36 (MSCH) - Body ground*4, *7 | P - Body ground | CAN communication line | - | - |
D66-37 (MSCL) - Body ground*4, *7 | V - Body ground | CAN communication line | - | - |
D66-39 (IG+) - Body ground | P - Body ground | IG switch signal | Ignition switch off | Below 1 V |
Ignition switch ON | 10.5 to 16 V | |||
D66-40 (B) - Body ground | W - Body ground | Battery | Always | 11 to 14 V |
D141-1 (B) - Body ground | P - Body ground | Battery | Always | 11 to 14 V |
D141-3 (HAZ) - Body ground | GR - Body ground | Hazard warning signal switch signal (Output) | Hazard warning signal switch on | Below 1 V |
Hazard warning signal switch off | 11 to 14 V | |||
D141-4 (TX+) - Body ground | V - Body ground | Parking brake switch signal | Ignition switch ON, electric parking brake switch off | Pulse generation |
Ignition switch ON, electric parking brake switch on | Pulse generation | |||
D141-7 (LR) - Body ground | L - 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 | |||
D141-8 (SW) - Body ground | L - Body ground | Turn signal switch (full turn) signal | Headlight dimmer switch on (full turn) | Below 1 V |
Headlight dimmer switch off | 11 to 14 V | |||
D141-9 (ER) - Body ground | G - Body ground | RH turn indicator light signal (Input) | Ignition switch ON, RH turn signal switch on | Below 1 V |
Ignition switch ON, RH turn signal switch off | 11 to 14 V | |||
D141-10 (EL) - Body ground | LG - Body ground | LH turn indicator light signal (Input) | Ignition switch ON, LH turn signal switch on | Below 1 V |
Ignition switch ON, LH turn signal switch off | 11 to 14 V | |||
D141-13 (LL) - 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 |
*1: for LHD
*2: for RHD
*3: w/ Tire Pressure Warning System
*4: for Radio and Display Type
*5: The standard value changes according to the outside temperature.
*6: w/ AFS
*7: for Multi-information Display (Color Type)
*8: for Multi-information Display (Monochrome Type)
Using an oscilloscope, check waveform 1.
Item | Condition |
---|---|
Tester Connection |
|
Tool Setting | 5 V/DIV., 20 ms./DIV. |
Vehicle Condition | Driving at approximately 20 km/h (12 mph) |
Tech Tips
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.