Terminals Of ECM
Each ECM terminal's standard voltage is shown in the table below.
In the table, first follow the information under "Condition".
Look under "Symbols (Terminals No.)" for the terminals to be inspected. The standard voltage between the terminals is shown under "STD voltage".
Use the illustration above as a reference for the ECM terminals.
VOLTAGE SPECIFICATION
| Symbols (Terminal No.) | Wiring Color | Terminal Description | Condition | STD Voltage (V) |
|---|---|---|---|---|
| BATT (E7-6) - E1 (E5-28) | R - BR | Battery | Always | 9 to 14 |
| +B (E7-4) - E1 (E5-28) | B - BR | Power source of ECM | Power switch ON (IG) | 9 to 14 |
| +BM (E7-5) - E1 (E5-28) | GR - BR | Power source of ETCS | Always | 9 to 14 |
| IGSW (E6-9) - E1 (E5-28) | O - BR | Power switch signal | Power switch ON (IG) | 9 to 14 |
| MREL (E7-7) - E1 (E5-28) | G - BR | Main relay control signal | Power switch ON (IG) | 9 to 14 |
| VC (E4-18) - E2 (E4-28) | R - BR | Power source of sensor (a specific voltage) | Power switch ON (IG) | 4.5 to 5.5 |
| NE+ (E4-33) - NE- (E4-34) | R-G | Crankshaft position sensor | Idling (during inspection mode) | Purge generation (See DTC P0335 CRANKSHAFT POSITION SENSOR "A" CIRCUIT ) |
| G2 (E4-26) - NE- (E4-34) | R-G | Camshaft position sensor | Idling (during inspection mode) | Purge generation (See DTC P0335 CRANKSHAFT POSITION SENSOR "A" CIRCUIT ) |
| VTA (E4-32) - E2 (E4-28) | P - BR | Throttle position sensor | Power switch ON (IG), Throttle valve fully closed | 0.5 to 1.2 |
| VTA (E4-32) - E2 (E4-28) | P - BR | Throttle position sensor | HV system ON, During active test to open throttle valve (see DATA LIST / ACTIVE TEST ) | 3.2 to 4.8 |
| VTA2 (E4-31) - E2 (E4-28) | L - BR | Throttle position sensor | Power switch ON (IG), Accelerator pedal released | 2.0 to 2.9 |
| VTA2 (E4-31) - E2 (E4-28) | L - BR | Throttle position sensor | HV system ON, During active test to open throttle valve (see DATA LIST / ACTIVE TEST ) | 4.6 to 5.5 |
| VG (E5-33) - EVG (E5-32) | G-R | Mass air flow meter | Idling (during inspection mode), A/C switch OFF | 1.0 to 1.5 |
| THA (E4-20) - E2 (E4-28) | W - BR | Intake air temperature sensor | Idling (during inspection mode), Intake air temperature at 20°C (68°F) | 0.5 to 3.4 |
| THW (E4-19) - E2 (E4-28) | W - BR | Engine coolant temperature sensor | Idling (during inspection mode), Engine coolant temperature at 80°C (176°F) | 0.2 to 1.0 |
| #10 (E4-2) - E01 (E4-7) | Y - BR | Injector | Power switch ON (IG) | 9 to 14 |
| #20 (E4-3) - E01 (E4-7) | B - BR | Injector | Power switch ON (IG) | 9 to 14 |
| #30 (E4-4) - E01 (E4-7) | L - BR | Injector | Power switch ON (IG) | 9 to 14 |
| #40 (E4-5) - E01 (E4-7) | R - BR | Injector | Power switch ON (IG) | 9 to 14 |
| IGT1 (E4-8) - E1 (E5-28) | Y - BR | Ignition coil No. 1 (#1) (Ignition signal) | Idling (during inspection mode) | Pulse generation (See DTC P0351 IGNITION COIL "A" PRIMARY / SECONDARY CIRCUIT; DTC P0352 IGNITION COIL "B" PRIMARY/SECONDARY CIRCUIT; DTC P0353 IGNITION COIL "C" PRIMARY / SECONDARY CIRCUIT; DTC P0354 IGNITION COIL "D" PRIMARY / SECONDARY CIRCUIT ) |
| IGT2 (E4-9) - E1 (E5-28) | W - BR | Ignition coil No. 1 (#2) (Ignition signal) | Idling (during inspection mode) | Pulse generation (See DTC P0351 IGNITION COIL "A" PRIMARY / SECONDARY CIRCUIT; DTC P0352 IGNITION COIL "B" PRIMARY/SECONDARY CIRCUIT; DTC P0353 IGNITION COIL "C" PRIMARY / SECONDARY CIRCUIT; DTC P0354 IGNITION COIL "D" PRIMARY / SECONDARY CIRCUIT ) |
| IGT3 (E4-10) - E1 (E5-28) | G - BR | Ignition coil No. 1 (#3) (Ignition signal) | Idling (during inspection mode) | Pulse generation (See DTC P0351 IGNITION COIL "A" PRIMARY / SECONDARY CIRCUIT; DTC P0352 IGNITION COIL "B" PRIMARY/SECONDARY CIRCUIT; DTC P0353 IGNITION COIL "C" PRIMARY / SECONDARY CIRCUIT; DTC P0354 IGNITION COIL "D" PRIMARY / SECONDARY CIRCUIT ) |
| IGT4 (E4-11) - E1 (E5-28) | Y - BR | Ignition coil No. 1 (#4) (Ignition signal) | Idling (during inspection mode) | Pulse generation (See DTC P0351 IGNITION COIL "A" PRIMARY / SECONDARY CIRCUIT; DTC P0352 IGNITION COIL "B" PRIMARY/SECONDARY CIRCUIT; DTC P0353 IGNITION COIL "C" PRIMARY / SECONDARY CIRCUIT; DTC P0354 IGNITION COIL "D" PRIMARY / SECONDARY CIRCUIT ) |
| KNK1 (E5-1) - EKNK (E5-2) | B-W | Knock sensor | Idling (during inspection mode) | Pulse generation (See DTC P0325 KNOCK SENSOR 1 CIRCUIT; DTC P0327 KNOCK SENSOR 1 CIRCUIT LOW INPUT (BANK 1 OR SINGLE SENSOR); DTC P0328 KNOCK SENSOR 1 CIRCUIT HIGH INPUT (BANK 1 OR SINGLE SENSOR) ) |
| IGF (E4-23) - E1 (E5-28) | B - BR | Ignition confirmation signal | Idling (during inspection mode) | Pulse generation (See DTC P0351 IGNITION COIL "A" PRIMARY / SECONDARY CIRCUIT; DTC P0352 IGNITION COIL "B" PRIMARY/SECONDARY CIRCUIT; DTC P0353 IGNITION COIL "C" PRIMARY / SECONDARY CIRCUIT; DTC P0354 IGNITION COIL "D" PRIMARY / SECONDARY CIRCUIT ) |
| A1A+ (E5-23) - E1 (E5-28) | G - BR | A/F sensor | Power switch ON (IG) | 3.0 to 3.6 |
| A1A- (E5-22) - E1 (E5-28) | R - BR | A/F sensor | Power switch ON (IG) | 2.7 to 3.3 |
| OX1B (E6-22) - E2 (E4-28) | Y - BR | Heated oxygen sensor | Maintain engine speed at 2,500 rpm for 2 minutes after warming up | Pulse generation |
| HA1A (E5-7) - E04 (E4-1) | Y - BR | A/F sensor heater | Idling (during inspection mode) | Below 3.0 |
| HA1A (E5-7) - E04 (E4-1) | Y - BR | A/F sensor heater | Power switch ON (IG) | 9 to 14 |
| HT1B (E6-6) - E03 (E6-7) | G - BR | Heated oxygen sensor heater | Idling (during inspection mode) | Below 3.0 |
| HT1B (E6-6) - E03 (E6-7) | G - BR | Heated oxygen sensor heater | Power switch ON (IG) | 9 to 14 |
| PTNK (E7-34) - E2 (E4-28) | Y - BR | Vapor pressure sensor | Power switch ON (IG) | 2.9 to 3.7 |
| PTNK (E7-34) - E2 (E4-28) | Y - BR | Vapor pressure sensor | Apply vacuum 4.0 kPa | Below 0.5 |
| EVP1 (E5-14) - E1 (E5-28) | R - BR | EVAP VSV | Power switch ON (IG) | 9 to 14 |
| TBP (E7-18) - E1 (E5-28) | R - BR | Tank bypass VSV | Power switch ON (IG) | 9 to 14 |
| M+ (E5-6) - E1 (E5-28) | L - BR | Throttle actuator control motor | Idling (during inspection mode) | Pulse generation |
| M- (E5-5) - E1 (E5-28) | P - BR | Throttle actuator control motor | Idling (during inspection mode) | Pulse generation |
| OCV+ (E4-15) - OCV- (E4-14) | Y-W | Camshaft timing oil control | Power switch ON (IG) | Pulse generation (See DTC P0010 CAMSHAFT POSITION "A" ACTUATOR CIRCUIT (BANK 1) ) |
| TAM (E7-21) - E2 (E4-28) | W - BR | Outside air temperature sensor | Ambient air temperature -40 to 140°C (-40 to 284°F) | 0.8 to 1.3 |
| MOPS (E5-15) - E1 (E5-28) | Y - BR | Engine oil pressure | Power switch ON (IG), not engine running | 9 to 14 |
| WBAD (E7-20) - E1 (E5-28) | R - BR | Water valve position signal | Power switch ON (IG) | 0.3 to 4.7 |
| THW2 (E7-33) - E2 (E4-28) | W - BR | Coolant heat storage tank outlet temperature sensor | Power switch ON (IG), Coolant temperature at 80°C (176°F) | 0.2 to 1.0 |
| WSL1 (E7-24) - WSL2 (E7-23) | Y-V | Water valve motor | Changing valve position | Pulse generation |
| WPL (E7-15) - E1 (E5-28) | V - BR | CHS water pump | Pre-heat mode | 0to2 |
| FAN (E7-8) - E1 (E5-28) | LG - BR | Cooling fan relay | Power switch ON (IG), Engine coolant temperature less than 94.5°C (202°F) | 9 to 14 |
| W (E6-18) - E1 (E5-28) | LG - BR | MIL | Idling (during inspection mode) | 9 to 14 |
| W (E6-18) - E1 (E5-28) | LG - BR | MIL | Power switch ON (IG) | Below 3.0 |
| FC (E6-10) - E1 (E5-28) | G - BR | Fuel pump control | Power switch ON (IG) | 9 to 14 |
| FC (E6-10) - E1 (E5-28) | G - BR | Fuel pump control | Power switch ON (IG) | Below 3.0 |
| TC (E6-14) - E1 (E5-28) | P - BR | Terminal TC of DLC3 | Power switch ON (IG) | 9 to 14 |
| NEO (E7-1) - E1 (E5-28) | LG - BR | Revolution signal | Idling (during inspection mode) | Pulse generation |
| GO (E7-2) - E1 (E5-28) | Y - BR | Revolution signal | Idling (during inspection mode) | Pulse generation |
| CANH (E6-31) - E1 (E5-28) | B - BR | CAN communication line | Power switch ON (IG) | Pulse generation |
| CANL (E6-30) - E1 (E5-28) | W - BR | CAN communication line | Power switch ON (IG) | Pulse generation |
| VPMP (E7-26) - E1 (E5-28) | V - BR | Vent valve (built into pump module) | Power switch ON (IG) | 9 to 14 |
| MPMP (E7-13) - E1 (E5-28) | P - BR | Vacuum pump (built into pump module) | Vacuum pump OFF | 0 to 3 |
| MPMP (E7-13) - E1 (E5-28) | P - BR | Vacuum pump (built into pump module) | Vacuum pump ON | 9 to 14 |
| PPMP (E7-30) - E1 (E5-28) | L - BR | Pressure sensor (built into pump module) | Power switch ON (IG) | 3 to 3.6 |