ECM Info for Phase 3 Baleno 1.6(should be similar for our version I hope) I am pasting info from other forum and it will be of great help to some ppl who love to trace ECM wires and its diagnotic.
This info is with respect to terminal arrangement of ECM (PCM) coupler when viewed from harness side looking at computer.
There are three connectors / looms connecting to the ECM each of which is a different size so you can't mix them up.
The left-hand one has 26 wires and is referred to as connector A with pins A1 through to A26.
A1 is at the top left going along the top row to A13 then to the bottom row directly below A1 is A14 then along the bottom row to A26.
The next two connectors follow this same logic.
B1 through to B16 on the second (Middle) connector.
B1 is at the top left going along the top row to B8 then to the bottom row directly below B1 is B9 then along the bottom row to B16.
C1 to C22 on the last (Right hand) connector.
C1 is at the top left going along the top row to C11 then to the bottom row directly below C1 is C12 then along the bottom row to C22.
I trust that makes sense!!!
Now to explain the function of each connection.
I have included the colour of the first few wires on each connector so you can tell you have the orientation correct.
A1 - Diagnosis switch terminal - (V/Y)
A2 - Test Switch Terminal - (V/W)
A3 - DLC
A4 - Duty Output Terminal
A5 - Tachometer
A6 - Main Relay
A7 - Check Engine Lamp
A8 - A/C Cut signal for A/C Amplifier (if equipped)
A9 - A/C Condenser Fan control relay (if equipped)
A10 - Blank
A11 - Power Source (for sensors)
A12 - ECM (PCM) Ground
A13 - Power Source
A14 - A/C on signal from A/C amplifier (if equipped)
A15 - Blank
A16 - Electric load signal for position lamp and rear window defogger switch
A17 - Electrical load signal for blower fan motor
A18 - Engine coolant temperature signal to TCM (4AT only)
A19 - Throttle valve opening signal to TCM (4AT only)
A20 - Ignition Switch
A21 - Radiator fan control relay
A22 - IAC Valve
A23 - CO Adjusting resistor (if equipped)
A24 - Ground for CO adjusting resistor (if equipped)
A25 - Power for back up
A26 - Power source
B1- Ignition coil assembly for No.1 and No.4 cylinder - (Br/Y)
B2 - Fuel pump relay - (Y/Bl)
B3 - Direct Clutch solenoid (3AT only)
B4 - 2nd brake solenoid (3AT only)
B5 - EGR Valve (Stepper motor coil 1) (If equipped)
B6 - EGR Valve (Stepper moor coil 3) (If equipped)
B7 - No.1 injector
B8 - No.2 injector
B9 - Ignition coil assembly for No.2 and No.3 cylinder
B10 - Blank
B11 - Heated oxygen sensor heater (HO2S Heater) (If equipped)
B12 - EVAP Canister purge valve (If equipped)
B13 - EGR Valve (Stepper motor coil 2) (If equipped)
B14 - EGR Valve (Stepper motor coil 4) (If equipped)
B15 - No.3 injector
B16 - No.4 injector
C1 - Ground - (B/O)
C2 - "2" range signal (3AT Only) - (Y)
C3 - "N" range signal (3AT Only) / Torque reduction signal from TCM (4AT Only)
C4 - "P" range signal (#AT Only)
C5 - Engine start switch
C6 - ECT Sensor
C7 - TP Sensor
C8 - MAP Sensor
C9 - VSS (+) (3AT Only) / VSS (M/T and 4AT Only)
C10 - CKP Sensor (+) (without immobiliser) / CMP sensor (with immobiliser)
C11 - CMP Sensor (without immobiliser) / CKP Sensor (+) (with immobiliser)
C12 - Ground
C13 - "L" range signal (3AT Only)
C14 - "D" range signal (3AT Only) / "R", "D", "2", or "L" range switch from TCM (4AT Only)
C15 - "R" range signal (3AT Only)
C16 - power steering pressure switch
C17 - Sensor Ground
C18 - IAT Sensor
C19 - Heated Oxygen Sensor (HO2S) (If equipped) - (W)
C20 - VSS (-) (3AT Only)
C21 - CKP Sensor (-) (without immobiliser) / Blank (with immobiliser)
C22 - Blank (without immobiliser) / CKP Sensor (-) (with immobiliser)
Now to the specifics of Boskos question...
Hook the signal wire of your fuel mixture display to C19 which is a white wire.
For a kill switch you can use the fuel pump relay output at B2... just cut this wire and install a switch.
PLEASE READ!!!
Be sure to disconnect your car battery before removing connectors from the computer.
Be sure to disconnect connectors from the ECM before adding to or altering the ECM wiring.
Never install a voltmeter or Ohmmeter into the ECM connector’s terminals when the ECM is installed. (Disconnect ECM first)
Never touch inputs / contacts of the ECM with your fingers.
Basically I am trying to say the computer / ECM is a very sensitive and expensive item... If you are not sure about it don't touch... they are susceptible to ESD electro static discharge. |