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Ecu Connector Identification

Fig 1: ID of ECU Electrical Connectors
G61961Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
ECU PIN CONNECTOR ABBREVIATION IDENTIFICATION

Abbreviation Function
ACV A/C Idle-Up Vacuum Switching Valve
BATT Battery
B/K Brake Switch
+B, +B1 EFI Main Relay
ECT Electronically Controlled Transmission ECU
E1, E01, E02 Computer Ground
E2, E21 Sensor Ground
FPU Fuel Pressure-Up Vacuum Switching Valve
IDL Throttle Position Sensor
IGF Ignitor
IGT Ignitor (Primary Trigger)
KNK Knock Sensor
L1, L2, L3 Electronically Controlled Transmission ECU
Ne Distributor (RPM)
NSW Neutral/Start Switch (Auto. Trans.)
No. 10 Injector
No. 20 Injector
OX Oxygen Sensor
SPD Vehicle Speed Sensor
STA Neutral/Start Switch
T Check Connector
THA Air Temperature Sensor
THW Coolant Temperature Sensor
TIL Turbo Indicator Light
TSW Coolant Temperature Switch
VC Airflow Meter
VCC Throttle Position Sensor
VF Check Connector
VS Airflow Meter
VTA Throttle Position Sensor
W Warning Light
NOTE: Diagnostic charts appearing in this article are provided courtesy of Toyota Motor Sales, U.S.A., Inc.