TERMINALS OF ECM
ECM
HINT:
The standard voltage and resistance of each ECM terminal is shown in the table below.
The appropriate conditions for checking each pair of terminals are also indicated. The result of checks should be compared with the standard voltage or resistance for that pair of terminals shown in the "Specified Condition" column
Use the illustration above as a reference for the ECM terminals.
Terminal No. (Symbol) | Terminal Description | Condition | Specified Condition |
---|---|---|---|
A106-1 (BATT) - A106-10 (E1) | Auxiliary battery (for measuring auxiliary battery voltage and for ECM memory) | Always | 11 to 14 V |
A106-4 (MTMS) - A106-10 (E1) | iMT switch signal | Ignition switch ON and iMT switch pushed | Below 1.5 V |
Ignition switch ON and iMT switch not pushed | 11 to 14 V | ||
A106-8 (CANH) - A106-10 (E1) | CAN communication line | Ignition switch ON | Pulse generation |
A106-9 (+B) - A106-10 (E1) | Power source of ECM | Ignition switch ON | 11 to 14 V |
A106-10 (E1) - Body ground | Ground | Always | Below 1 Ω |
A106-18 (CANL) - A106-10 (E1) | CAN communication line | Ignition switch ON | Pulse generation |
A106-35 (+B2) - A106-10 (E1) | Power source of ECM | Ignition switch ON | 11 to 14 V |
A106-42 (SPD) - A106-10 (E1) | Vehicle speed signal from combination meter assembly signal | Vehicle being driven | Pulse generation |
A106-43 (VCCL) - A106-44 (E2CL) | Power supply for clutch stroke sensor | Ignition switch ON | 4.5 to 5.5 V |
A106-52 (CLS) - A106-44 (E2CL) | Clutch pedal stroke sensor signal | Ignition switch ON and clutch pedal fully released | 0.2 to 1.5 V |
Ignition switch ON and clutch pedal fully depressed | 2.5 to 4.8 V | ||
D104-104 (THOM) - D104-126 (ETHM) | Manual transaxle oil temperature sensor signal | manual transaxle oil temperature: 60 to 120°C (140 to 248°F) | 0.2 to 1.0 V |
D104-116 (VCNE) - A106-10 (E1) | Power source of crankshaft position sensor (specific voltage) | Engine stopped, ignition switch ON | 4.5 to 5.5 V |
D105-53 (NIMB) - A106-10 (E1) | Power source of transmission revolution sensor | Ignition switch ON | 11 to 14 V |
D105-54 (NIMO) - A106-10 (E1) | Transmission revolution sensor signal | Engine idling and clutch pedal fully released | Pulse generation |
Automatic transaxle: Shift the selector lever to the P position and set the parking brake.
Press the push button start to turn off the engine. The ignition position is off.