Suzuki - 1.3L unknown engine
Specifying ECU (inputs, outputs, mechanically)
suzuki_swift_wiring_diagrams_1997.pdf is helpful, but not enough, by far.
Factory connector should be used.
- can be placed in VEMS box (best)
- or factory box (seems more difficult to get right)
- or even adapter small harness (not really justified)
Output
- Logiclevel ignout .. pin10 (no idea if 5v/12v needed). External ignitor triggered from c21/pin10 ORG
A/C ? AC-idle up in c23/pin19 BLU/RED; AC Cut-out c23/pin17 LT GRN/RED
FAN? c21/pin20 BLU
Idle valve type ? PWM type, c21/pin24 GRY/RED
Tach out? Tach is triggered from coil directly, not from ECM.
Other ? flying loom EC10 or SSC would be nice:
- a few extra outputs
- a few analog inputs (min 2 pulledup, min 1 with no pullup)
Pins for FETs (by default 30V flyback, mark where low voltage flyback required) should be defined now: (exact mapping enough during manufacturing)
injFETs . Injout Pins:
- EC36/7: INJA Fuel injector throttle body: c21/pin12 YEL/BLK
- EC36/19: INJB Tank pressure control valve: c21/19 RED/BLU
- EC36/8: INJC EGR Solenoid: vacuum valve 2: c21/pin5 RED/BLK
- EC36/20 INJD EVAP Purge: c21/7 RED/GRN
- EC36/9 INJE EGR Solenoid vacuum valve: c21/pin6 GRN
- EC36/18 INJF EVAP can vent: c21/3 RED/WHT
- EC36/6 INJG: IDLE valve: c21/pin24 GRY/RED needs low voltage flyback diode
- EC36/17 INJH: ....
FLYBACK
- EC36/23: Flyback/IGN PWR, c21/pin15 WHT/BLU
IDLE voltage supply:
- connect c21/pin2 WHT/BLU to c21/pin11 GRY/YEL (ISC motor control 12v supply)
ignIGBT ignition out pins:
- EC36/11: IGN 04: External igniter triggered: c21/pin10 ORG logic level
- EC36/34: IGN 02: Main relay c21/pin22 BLU/BLK
- EC36/36: IGN 03: Fuel pump relay c21/pin21 PNK/WHT
- EC36/33: IGN 01: ISCA relay c21/pin16 GRY/BLK
- EC36/35: IGN 00: EFE Relay (early fuel evap) c21/pin25 YEL/RED
- EC36/10: IGN 07: Rad Fan relay c21/pin20 BLU
- EC36/24: IGN 06: ....
P259 out pins:
- EC36/30 P259/7: MIL light c21/18 VIO/RED
v3 POWER:
- EC36/25 12v supply: c23/20 BLK/WHT
v3 GND:
- join GND5 EC36/5, 21, 22, 32 with c21/pin13 BLK/BLU, c21/pin26 BLK/RED
- join GND EC36/26 with c21/pin1 BLK/GRN, c22/pin9 LT GRN/BLK
Inputs
- VR, VR
- EC36/27: primtrig VR c22/pin3 WHT/BLK, c22/pin11 WHT/RED;
- EC36/13: sectrig VR c22/pin10 WHT, c22/pin2 ORG
- EC36/14: CLT: c22/pin7 GRY/WHT
- EC36/2: IAT: c22/pin14 GRY
- offboard MAP sensor:
- internal signal: MAP signal: c22/pin5 LT GRN/RED
- EC36/28: TPS/MAP 5v: c22/pin1 LT GRN
- EC36/26: Sensor GND (MAP/TPS/IAT/CLT): c22/pin9 LT GRN/BLK
- EC36/1: TPS: c22/pin6 LT GRN/WHT
- NO Knock
- EC18/8: Wheelspeed: c23/pin11 YEL/GRN (HALL)