COMBINATION METER ASSEMBLY
Disconnect the combination meter assembly connectors.
Measure the voltage on the wire harness side connector according to the value(s) in the table below.
Terminal No. | Wiring Color | Terminal Description | Condition | Specified Condition |
---|---|---|---|---|
P25-21 (IG+) - Body ground | G - Body ground | Power switch signal | Power switch off | Below 1 V |
Power switch on (IG) | 11 to 14 V | |||
P25-22 (B) - Body ground | V - Body ground | Auxiliary battery | Always | 11 to 14 V |
P26-1 (B) - Body ground | P - Body ground | Auxiliary battery | Always | 11 to 14 V |
P25-39 (ILL-) - Body ground | LA-BE - Body ground | Illumination signal | Headlight dimmer switch off | Below 1 V |
Headlight dimmer switch in tail or head position | 11 to 14 V | |||
P25-40 (EP) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
If the result is not as specified, there may be a malfunction in the wire harness.
Reconnect the combination meter assembly connectors.
Measure the voltage and resistance according to the value(s) in the table below.
Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
---|---|---|---|---|
P25-6 (RLSB) - Body ground | LG - Body ground | Rear seat belt LH warning light signal | Rear seat belt LH fastened within 30 seconds of opening rear door with Power switch on (IG) | 11 to 14 V |
Rear seat belt LH unfastened within 30 seconds of opening rear door with Power switch on (IG) | Below 1 V | |||
P25-10 (RRSB) - Body ground | SB - Body ground | Rear seat belt RH warning light signal | Rear seat belt RH fastened within 30 seconds of opening rear door with Power switch on (IG) | 11 to 14 V |
Rear seat belt RH unfastened within 30 seconds of opening rear door with Power switch on (IG) | Below 1 V | |||
P26-6 (INT) - Body ground | GR - Body ground | Tire pressure warning light signal | Power switch on (IG), tire pressure warning light off | Below 1 V |
Power switch on (IG), tire pressure warning light on | 11 to 14 V | |||
P25-20 (SI) - Body ground | LG - Body ground | Speed signal for other system (Input) | Power switch on (IG), wheel being rotated | Pulse generation (See waveform 1) |
P25-19 (+S) - Body ground | L - Body ground | Speed signal for other system (Output) | Power switch on (IG), wheel being rotated | Pulse generation (See waveform 1) |
P25-18 (FV) - Body ground | B - Body ground | Fuel sender gauge (Power source) | Always | 4.5 to 5.5 V |
P25-14 (FV) - Body ground | R - Body ground | Fuel sender gauge (Power source) | Always | 4.5 to 5.5 V |
P25-27 (FR) - P25-28 (FE) | G - R | Fuel level signal | Power switch on (IG) fuel level full | Below 1 V |
Power switch on (IG) fuel level low (fuel level warning light on) | 4.5 to 5.5 V | |||
P25-12 (FR) - P25-13 (FE&B) | LG - BE | Fuel level signal | Power switch on (IG) fuel level full | Below 1 V |
Power switch on (IG) fuel level low (fuel level warning light on) | 4.5 to 5.5 V | |||
P25-28 (FE) - Body ground | R - Body ground | Fuel sender gauge (Ground) | Always | Below 1 Ω |
P25-13 (FE&B) - Body ground | BE - Body ground | Fuel sender gauge (Ground) | Always | Below 1 Ω |
P25-16 (WLVL) - Body ground | V - Body ground | Washer fluid level signal | Power switch on (IG) washer fluid level not low | 11 to 14 V |
Power switch on (IG) washer fluid level low | Below 1 V | |||
P25-31 (ES) - Body ground | W-B - Body ground | Ground | Always | Below 1 Ω |
P25-5 (EPB) - Body ground | P - Body ground | Electric parking brake signal | Power switch on (IG), parking brake switch is off | 11 to 14 V |
Power switch on (IG), parking brake switch is on | Below 1.5 V | |||
P25-35 (RLBT) - Body ground | W - Body ground | Rear seat belt LH warning light signal | Front door is opened within approximately 34 seconds after turning the power switch on (IG) from off and rear seat belt LH unfastened → fastened. In addition, 34 seconds elapse after opening the front door | Below 1 V → 11 to 14 V |
P25-37 (RRBT) - Body ground | P - Body ground | Rear seat belt RH warning light signal | Front door is opened within approximately 34 seconds after turning the power switch on (IG) from off and rear seat belt RH unfastened → fastened. In addition, 34 seconds elapse after opening the front door | Below 1 V → 11 to 14 V |
P25-30 (CANL) - Body ground | W - Body ground | CAN communication line | - | - |
P25-29 (CANH) - Body ground | Y - Body ground | CAN communication line | - | - |
P26-9 (TX-) - Body ground | W - Body ground | Local bus communication line | - | - |
P26-10 (TX+) - Body ground | R- Body ground | Local bus communication line | - | - |
P25-3 (MSTI) - Body ground | B - Body ground | Steering pad switch signal | Power switch on (IG), up, down, right and left switches on steering pad switch assembly not pushed | 4.3 to 5.2 V |
Power switch on (IG), left switch on steering pad switch pushed | Below 0.6 V | |||
Power switch on (IG), up switch on steering pad switch pushed | 1.0 to 2.2 V | |||
Power switch on (IG), down switch on steering pad switch pushed | 2.3 to 3.4 V | |||
Power switch on (IG), right switch on steering pad switch pushed | 3.4 to 4.5 V | |||
P25-1 (MSSL) - Body ground | BR - Body ground | Ground | Always | Below 1 Ω |
P25-2 (MSM+) - Body ground | LG - Body ground | Steering pad switch signal | Power switch on (IG), enter, trip and back switches on steering pad switch not pushed | 4.3 to 5.2 V |
Power switch on (IG), enter switch on steering pad switch pushed | Below 0.6 V | |||
Power switch on (IG), trip switch on steering pad switch pushed | 1.0 to 2.2 V | |||
Power switch on (IG), back switch on steering pad switch pushed | 2.3 to 3.4 V | |||
P25-25 (TR) - Body ground | BR - Body ground | Light control rheostat switch signal | Power switch on (IG), up switch and down switch of trip switch not pushed | 4 to 6 V |
Power switch on (IG), up switch or down switch of trip switch pushed | Below 1 V | |||
P25-26 (SW3) - Body ground | W - Body ground | Ground for trip switch | Always | Below 1 Ω |
P25-4 (ODO) - Body ground | L - Body ground | ODO/TRIP switch signal | Power switch on (IG), ODO/TRIP switch not pushed | 4 to 6 V |
Power switch on (IG), ODO/TRIP switch pushed | Below 1 V | |||
P25-9 (S) - Body ground | B - Body ground | Oil pressure signal | Engine started | 11 to 14 V |
Engine not started | Below 1 V | |||
P25-15 (OILW) - Body ground | SB - Body ground | Engine oil level signal | Power switch on (IG), engine oil level not low | 11 to 14 V |
Power switch on (IG), engine oil level low | Below 1 V | |||
P26-2 (HZSW) - Body ground | V - 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 | |||
P26-12 (HAZM) - Body ground | B - Body ground | Hazard warning signal switch signal (Output) | Power switch on (IG), hazard warning signal switch not pressed | Below 1 V |
Power switch on (IG), hazard warning signal switch pressed | 11 to 14 V ←→ Below 1 V | |||
P26-5 (TRNR) - Body ground | SB - Body ground | Rear turn signal light RH signal | Power switch on (IG), RH turn indicator light off | Below 1 V |
Power switch on (IG), RH turn indicator light blinking | 11 to 14 V ←→ Below 1 V | |||
P26-11 (TRNL) - Body ground | Y - Body ground | Rear turn signal light LH signal | Power switch on (IG), LH turn indicator light off | Below 1 V |
Power switch on (IG), LH turn indicator light blinking | 11 to 14 V ←→ Below 1 V | |||
P26-7 (LR) - Body ground | LA-SB - Body ground | Rear turn signal light RH signal | Power switch on (IG), RH turn indicator light off | Below 1 V |
Power switch on (IG), RH turn indicator light blinking | 11 to 14 V ←→ Below 1 V | |||
P26-13 (LL) - Body ground | LA-Y - Body ground | Rear turn signal light LH signal | Power switch on (IG), LH turn indicator light off | Below 1 V |
Power switch on (IG), LH turn indicator light blinking | 11 to 14 V ←→ Below 1 V |
If the result is not as specified, the combination meter assembly may be malfunctioning.
Waveform 1 (Reference):
Item | Condition |
---|---|
Tool setting | 5 V/DIV., 20 ms./DIV. |
Vehicle condition | Power switch on (IG) wheel being rotated |
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.