ECD SYSTEM TERMINALS OF ECU
| *1 | ECM Terminals | - | - |
| Symbols (Terminal No.) | Wiring Color | Condition | STD Voltage (V) |
| BATT (E10-2) ←→ E1 (E7-22) | B-Y ←→ BR | Always | 9 - 14 |
| +B (E10-1) ←→ E1 (E7-22) | B-R ←→ BR | IG switch ON | 9 - 14 |
| VC (E8-21) ←→ E2 (E8-20) | G-Y ←→ BR | IG switch ON | 4.5 - 5.5 |
| VCP1 (E9-8) ←→ EP1 (E9-27) | G ←→ R | IG switch ON | 4.5 - 5.5 |
| VCP2 (E9-13) ←→ EP1 (E9-27) | Y ←→ R | IG switch ON | 4.5 - 5.5 |
| VPA1 (E9-19) ←→ EP1 (E9-27) | W ←→ R | Accelerator pedal fully closed | 0.5 - 1.1 |
| Accelerator pedal fully opened | 3.0 - 4.6 | ||
| VPA2 (E9-28) ←→EP2 (E9-24) | G-B ←→ BR | Accelerator pedal fully closed | 0.7 - 2.3 |
| Accelerator pedal fully opened | 3.4 - 5.0 | ||
| PCR (E8-23) ←→ E2 (E8-20) | W-R ←→ BR | IG switch ON | 1.0 - 4.0 |
| THAF (E8-13) ←→ E2 (E8-20) | W-G ←→ BR | Atmospheric temp | 0.5 - 3.8 |
| PIM (E8-16) ←→ E2 (E8-20) | R-Y ←→ BR | Apply vacuum 40 kPa (300 mmHg, 11.8 in.Hg) | 0.2 - 0.8 |
| Apply pressure 69 kPa (0.7 kg/cm2, 9.96 lb/in2.) |
3.2 - 3.8 | ||
| THA (E8-22) ←→ E2 (E8-20) | L-R ←→ BR | Idling, air intake temp. 0°C (32°F) to 80°C (176°F) | 0.5 - 3.4 |
| THW (E8-14) ←→ E2 (E8-20) | B-Y ←→ BR | Idling, engine coolant temp. 60°C (140°F) to 120°C (248°F) | 0.2 - 1.0 |
| THF (E8-24) ←→ E2 (E8-20) | Y-G ←→ BR | IG switch ON (at engine cold) | 0.5 - 3.8 |
| VG (E8-19) ←→ EVG (E8-11) | Y-R ←→ G-R | Idling, A/C switch OFF | 0.5 - 3.0 |
| IGSW (E10-9) ←→ E1 (E7-22) | B-O ←→ BR | IG switch ON | 9 - 14 |
| STA (E10-15) ←→ E1 (E7-22) | B ←→ BR | Cranking | 6.0 or more |
| NE+ (E7-17) ←→ NE- (E7-28) | R ←→ G | Idling | Pulse generation |
| G+ (E7-16) ←→ G- (E7-27) | B ←→ W | Idling | Pulse generation |
| SP1 (E9-22) ←→ E1 (E7-22) | V-W ←→ BR | IG switch ON, Rotate driving wheel slowly | Pulse generation |
| EGR (E7 - 2) ←→ E01 (E7-21) | G-W ←→ BR | IG switch ON | 9 - 14 |
| EGR ON (Maintain engine speed at 1,500 rpm after warming up) | Pulse generation |
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| PA (E8-17) ←→ E01 (E7-21) | W-L ←→ BR | Starter ON | 9 - 14 |
| #1 (E9-15) ←→ E01 (E7-21) | Y-R ←→ BR | Idling | Pulse generation |
| #2 (E9-14) ←→ E01 (E7-21) | V ←→ BR | ||
| #3 (E9-13) ←→ E01 (E7-21) | R ←→ BR | ||
| #4 (E9-12) ←→ E01 (E7-21) | G-B ←→ BR | ||
| INJF (E7-18) ←→ E01 (E7-21) | B-Y ←→ BR | Idling | Pulse generation |
| MREL (E10-7) ←→ E01 (E7-21) | R ←→ BR | IG switch ON | 9 - 14 |
| AC1 (E9-6) ←→ E1 (E7-22) | R ←→ BR | A/C switch ON (at idling) | 0 - 1.5 |
| A/C switch OFF | 9 - 14 | ||
| TACH (E9-10) ←→ E1 (E7-22) | B ←→ BR | Idling | Pulse generation*1 |
| SREL (E10-16) ←→ E01 (E7-21) | R-L ←→ BR | IG switch ON | 9 - 14 |
| W (E10-12) ←→ E1 (E7-22) | W ←→ BR | Check engine warning light lights up | 0 - 3 |
| Except check engine warning light lights up | 9 - 14 | ||
| GIND (E10- 3) ←→ E1 (E7-22) | Y-R ←→ BR | Glow indicator light lights up | 0 - 3.0 |
| Except glow indicator light lights up | 9 - 14 | ||
| ACT (E9-5) ←→ E1 (E7-22) | Y ←→ BR | IG switch ON | 9 - 14 |
| At A/C cut controlled (Driving below 30 km/h, accelerator pedal fully opened for 5 sec.) | 0 - 3.0 | ||
| LU+A (E7-20) ←→ E1 (E7-22) | R ←→ BR | IG switch ON | Pulse generation*2 |
| LU-A (E7-30) ←→ E1 (E7-22) | G ←→ BR | ||
| LU+B (E7-19) ←→ E1 (E7-22) | Y ←→ BR | ||
| LU-B (E7-29) ←→ E1 (E7-22) | L ←→ BR | ||
| TC (E10-18) ←→ E1 (E7-22) | P-B ←→ BR | IG switch ON | 9 - 14 |
| SIL (E10-19) ←→ E1 (E7-22) | W ←→BR | Connect intelligent tester to DLC3 | Pulse generation*3 |
| STP (E9-14) ←→ E1 (E7-22) | G-W ←→ BR | Brake pedal depressed | 7.5 -14 |
| Brake pedal released | 0 -1.5 | ||
| ST1-(E9-23) ←→ E1 (E7-22) | G ←→ BR | Brake pedal depressed | 0 -1.5 |
| Brake pedal released | 7.5 - 14 | ||
| RINJ1 (E7-26) ←→ E1 (E7-22) | P-L ←→ BR | Idling | 0.5 - 4.5 |
| RINJ2 (E7-25) ←→ E1 (E7-22) | B ←→ BR | ||
| RINJ3 (E7-24) ←→ E1 (E7-22) | W ←→ BR | ||
| RINJ4 (E7-23) ←→ E1 (E7-22) | R ←→ BR | ||
| PCV+ (E7-8) ←→ PCV- (E7-9) | P-B ←→ BR | Idling | Pulse generation |
| HSW (E9-25) ←→ E1 (E7-22) | B ←→ BR | Heater idle up switch ON | 0 - 3.0 |
| Heater idle up switch OFF | 9 - 14 | ||
| PRV (E8-4) ←→ E1 (E7-22) | P-B ←→ BR | At relief valve controlled Restore the acceleration pedal after depressing it strongly while the engine is idling |
Pulse generation |
| WFSE (E10-4) ←→ E1 (E7-22) | W ←→ BR | IG switch ON | 9 - 4 |
| OILM (E10-6) ←→ E1 (E7-22) | Y ←→ BR | IG switch ON | Pulse generation |
| EDUR (E10-6) ←→ E1 (E7-22) | B-W ←→ BR | IG switch ON | 0 - 3 |
| HEXF (E9-7) ←→ E1 (E7-22) | G ←→ BR | IG switch ON | 9 - 14 |
| DF (E8-1) ←→ E1 (E7-22) | L ←→ BR | Idling | Pulse generation |
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REFERENCE:
INSPECTION USING OSCILLOSCOPE
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*1: TACH ←→ E1
Measure set: 5 V/DIV, 10 ms/DIV
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*2: LU+A, LU-A, LU+B, LU-B ←→ E1
Measure set: 20 V/DIV, 10 ms/DIV
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*3: SIL ←→ E1
Measure set: 5 V/DIV, 1 ms/DIV
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