Terminals Of Ecu [06/2017 - ]
- COMBINATION METER ASSEMBLY
- Measure the voltage and resistance and check for pulses according to the value(s) in the table below.
Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition G1-1 (B) - Body ground L - Body ground Auxiliary battery Ignition switch off 11 to 14 V G1-2 (L) - Body ground V - Body ground Fuel level signal Ignition switch ON (IG), fuel level not low Below 1 V Ignition switch ON (IG), fuel level low 4.5 to 9 V G1-3 (PAON) - Body ground GR - Body ground Passenger airbag ON indicator light signal Ignition switch ON (IG), passenger airbag ON indicator light off 11 to 14 V Ignition switch ON (IG), passenger airbag ON indicator light on Below 1 V G1-4 (P-AB) - Body ground GR - Body ground Passenger airbag OFF indicator light signal Ignition switch ON (IG), passenger airbag OFF indicator light off 11 to 14 V Ignition switch ON (IG), passenger airbag OFF indicator light on Below 1 V G1-6 (EP) - Body ground W-B - Body ground Illumination ground Always Below 1 Ω G1-7 (RV) - Body ground V - Body ground Dimmer signal Headlight dimmer switch off 11 to 14 V Headlight dimmer switch in tail or head position Below 1 V G1-8 (RL) - Body ground W - Body ground Dimmer signal Headlight dimmer switch off 11 to 14 V Headlight dimmer switch in tail or head position Below 1 V G1-13 (LP) - Body ground*2 LG - Body ground Security indicator light signal Security indicator light off Below 2 V Security indicator light blinks Pulse generation G1-15 (TWS3) - Body ground*1 R - Body ground Engine coolant temperature sensor signal Idling, engine coolant temperature 75 to 100°C (167 to 212°F) 0.24 to 0.7 V G1-16 (TC) - G1-19 (SW3) B - W Light control rheostat (Tail cancel switch) signal Ignition switch ON (IG), light control rheostat knob not fully turned upward (Tail cancel switch off) 1 to 6 V Ignition switch ON (IG), light control rheostat fully turned upwards (Tail cancel switch on) Below 1 V G1-17 (SW2) - G1-19 (SW3) L - W Light control rheostat signal Ignition switch ON (IG), light control rheostat knob not fully turned upward (Tail cancel switch off) 1 to 6 V
(gradually change)G1-18 (SW1) - G1-19 (SW3) P - W Light control rheostat signal Ignition switch ON (IG) 4 to 6 V G1-20 (ET) - Body ground BR - Body ground Meter ground Always Below 1 Ω G1-21 (IG+) - Body ground B - Body ground Ignition switch signal Ignition switch off Below 1 V Ignition switch ON (IG) 11 to 14 V G1-22 (S) - Body ground GR - Body ground Engine oil pressure signal Engine started 11 to 14 V Engine not started Below 1 V G1-24 (EFI) - Body ground B - Body ground MIL (Check engine warning light) signal Ignition switch ON (IG), MIL (Check engine warning light) off 11 to 14 V Ignition switch ON (IG), MIL (Check engine warning light) on Below 3 V G1-28 (ODO) - Body ground LG - Body ground Steering pad switch RH signal Ignition switch ON (IG), trip switch on steering pad switch RH not pushed 4.8 to 5.2 V G1-29 (ILL+) - Body ground R - Body ground Illumination signal Headlight dimmer switch off 11 to 14 V Headlight dimmer switch in tail or head position Below 1 V G1-31 (CANH) G CAN communication line - - G1-32 (CANL) W CAN communication line - - G1-36 (E2) - Body ground*1 GR - Body ground Engine coolant temperature sensor ground Always Below 1 Ω G1-37 (MSTI) - Body ground G - Body ground Steering pad switch RH signal Ignition switch ON (IG), up, down, right and left switches on steering pad switch RH not pushed 4.8 to 5.2 V G1-38 (MSM+) - Body ground Y - Body ground Steering pad switch RH signal Ignition switch ON (IG), enter and back switches on steering pad switch RH not pushed 4.8 to 5.2 V G1-39 (+S) - Body ground SB - Body ground Speed signal for other systems (Output) Ignition switch ON (IG), wheel being rotated Pulse generation
(See waveform 1)G1-40 (SI) - Body ground V - Body ground Speed signal for other system (Input) Ignition switch ON (IG), wheel being rotated Pulse generation
(See waveform 1)G3-1 (B) - Body ground R - Body ground Auxiliary battery Ignition switch off 11 to 14 V G3-2 (-) - Body ground W-B - Body ground High beam indicator ground Always Below 1 V G3-3 (HAZ) - Body ground B - Body ground Hazard warning switch signal Hazard warning signal switch off 11 to 14 V Hazard warning signal switch on Below 1 V G3-4 (+) - Body ground GR - Body ground High beam signal Ignition switch ON (IG), high beam off Below 1 V Ignition switch ON (IG), high beam on 11 to 14 V G3-6 (TAIL) - Body ground R - Body ground Taillight signal Ignition switch ON (IG), taillight off 11 to 14 V Ignition switch ON (IG), taillight on Below 1 V G3-7 (LR) - Body ground G - Body ground RH turn indicator light signal RH turn indicator light off 11 to 14 V RH turn indicator light blinks 11 to 14 V ←→ Below 1 V G3-9 (ER) - Body ground B - Body ground RH turn switch signal Ignition switch ON (IG), RH turn signal switch off 11 to 14 V Ignition switch ON (IG), RH turn signal switch on Below 1 V G3-10 (EL) - Body ground Y - Body ground LH turn switch signal Ignition switch ON (IG), LH turn signal switch off 11 to 14 V Ignition switch ON (IG), LH turn signal switch on Below 1 V G3-12 (FOG) - Body ground*3 BE - Body ground Front fog indicator light signal Ignition switch ON (IG), front fog indicator light off Below 1 V Ignition switch ON (IG), front fog indicator light on 11 to 14 V G3-13 (LL) - Body ground LG - Body ground LH turn indicator light signal LH turn indicator light off 11 to 14 V LH turn indicator light blinks 11 to 14 V ←→ Below 1 V - *1: w/ Exhaust Heat Recirculation System
- *2: w/ Engine Immobiliser System
- *3: w/ Front Fog Light
- Waveform 1 (Reference):
Item Condition Tester Connection - G1-39 (+S) - Body ground
- G1-40 (SI) - Body ground
Tool setting 5 V/DIV., 20 ms./DIV. Vehicle condition Ignition switch ON (IG), 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.
- Measure the voltage and resistance and check for pulses according to the value(s) in the table below.
- COMBINATION METER ASSEMBLY CIRCUIT