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bridge tat and gnd in your diagnostic box turn key on . if hold light flashes 6 times it is speed control sensor in speedo 55 is trans fault 5slow flashes for 10s fast flashes for 1 to 9
Digital GND has more noise than Analog GND. So never mix up Digital GND to Analog GND to avoid the coupling from Digital to Analog GND
gnd stands for ground
GND
ground
ground
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A: GND is short for ground. There are many grounds earth ,signal ,power etc. It means a zero potential as a reference to what ever else is connected to
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just conect gnd to the vcc
red lead to one hot, black lead to gnd =110 red to other hot, black to gnd.= 110 red to hot, black to other hot =220 (meter set to ac.)
TERMINALS OF ECU1. RADIO RECEIVER ASSY (SEPARATE TYPE AMPLIFIER)Symbols (Terminal No.)Wiring ColorTerminal DescriptionConditionSpecificationBU+B (R4-1) - GND (R4-20)L-Y - BRBatteryAlways10 to 14 VILL+ (R4-2) - GND (R4-20)G - BRIllumination (dimmer) signalLight control switch OFF " TAIL or HEADBelow 1 V → 10 to 14 VTX+ (R4-5) - GND (R4-20)V - BRAVC-LAN communication signalIgnition switch ON2 to 3 VMUTE (R4-7) - GND (R4-20)R-W - BRMUTE signalAudio system is playing → changing modeAbove 3.5 V → Below 1 VR+ (R4-8) - GND (R4-20)W - BRSound signal (Right output)Audio system is playingA waveform synchro-nized with sounds is outputL+ (R4-9) - GND (R4-20)B - BRSound signal (Left output)Audio system is playingA waveform synchro-nized with sounds is outputGND (R4-10) - Body groundShielded - Body groundShield groundAlwaysBelow 1 VACC+B (R4-11) - GND (R4-20)GR - BRAccessory (ON)Turn ignition switch to OFF → ACC10 to 14 VILL- (R4-12) - GND (R4-20)W-G - BRIllumination (rheostat) signalLight control switch TAILBelow 1 V → 10 to 14 VANT+B (R4-13) - GND (R4-20)B-R - BRPower source of antennaRadio switch ON and AM or FM10 to 14 VTX- (R4-15) - GND (R4-20)P - BRAVC-LAN communication signalIgnition switch ON2 to 3 VR- (R4-18) - GND (R4-20)G - BRSound signal (Right output)Audio system is playingA waveform synchro-nized with sounds is outputL- (R4-19) - GND (R4-20)R - BRSound signal (Left output)Audio system is playingA waveform synchro-nized with sounds is outputGND (R4-20) - Body groundBR - Body groundGroundAlwaysBelow 1 VGND (R19-6) - GND (R4-20)BR-W - BRSteering pad switch groundAlwaysBelow 1 VSteering pad switch not operating.4 V or more"SEEK+ switch push"Approx. 0.5 VSW1 (R19-7) - GND (R4-20)LG-R - BRSteering pad switch signal"SEEK- switch push"Approx. 0.9 V"VOL+ switch push"Approx. 2.0 V"VOL- switch push"Approx. 3.4 VSW2 (R19-8) - GND (R4-20)GR-R - BRSteering pad switch signalSteering pad switch not operating "MODE switch push4 V or more → Below 2.5 VI should include the harness diagram & No. but couldn't upload it!!