FixVault
Home › Toyota › 2006 › Camry Base, Automatic › Repair and Diagnosis › Engine Performance › System › Engine Control System (SFI) (2AZ-FE) - Diagnostics › Terminals Of ECM

Terminals Of ECM

Fig 1: Identifying ECM Connector Terminals
G04389057Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

HINT:

Each ECM terminal's standard voltage is shown in the table below.

In the table, first follow the information under "Condition". Next look under "Symbols (Terminal No.)" for the terminals to be inspected. The standard voltage between the terminals is shown under "Specific Condition". Use the illustration above as a reference for the ECM terminals.

ECM CONNECTOR TERMINALS - REFERENCE TABLE

Symbols (Terminal No.) Wiring color Terminal Description Condition Specified Condition
+B (E6-1) - E1 (E10-3) B-R - BR Power source of ECM Ignition switch ON 9 to 14 V
+B2 (E6-2) - E1 (E10-3) B-R - BR Power source of ECM Ignition switch ON 9 to 14 V
BATT (E6-3) - E1 (E10-3) B-Y - BR Battery (for measuring battery voltage and for ECM memory) Always 9 to 14 V
+BM (E6-7) - E1 (E10-3) L-R - BR Power source of throttle motor Always 9 to 14 V
MREL (E6-8) - E1 (E10-3) B-W - BR EFI relay Ignition switch ON 9 to 14 V
IGSW (E6-9) - E1 (E10-3) B-O - BR Ignition switch Ignition switch ON 9 to 14 V
STA (E6-12) - E1 (E10-3) B-W - BR Starter signal Shift lever position P or N, ignition switch START 6.0 V or more
ST1- (E6-16) - E1 (E10-3) R-B - BR Stop lamp switch (opposite to STP)
  • Ignition switch ON, brake pedal is depressed
 Below 1.5 V
  • Ignition switch ON, brake pedal is released
 7.5 to 14 V
VPA (E6-18) -EPA (E6-20) L-Y-LG-B Accelerator pedal position sensor (for engine control)
  • Ignition switch ON, accelerator pedal released
 0.5 to 1.1 V
  • Ignition switch ON, accelerator pedal depressed
 2.6 to 4.5 V
VPA2 (E6-19) - EPA2 (E6-21) W-R - LG Accelerator pedal position sensor (for sensor malfunction detection)
  • Ignition switch ON, accelerator pedal released
 1.2 to 2.0 V
  • Ignition switch ON, accelerator pedal depressed
 3.4 to 5.3 V
FC (E6-25) - E1 (E10-3) G-R - BR Fuel pump control Ignition switch ON 9 to 14 V
VCPA (E6-26) - EPA (E6-20) R - LG-B Power source of accelerator pedal position sensor (for VPA) Ignition switch ON 4.5 to 5.5 V
VCP2 (E6-27) - EPA2 (E6-21) B-R - LG Power source of accelerator pedal position sensor (for VPA2) Ignition switch ON 4.5 to 5.5 V
NSW (E6-30) - E1 (E10-3) B-Y (1) - BR Park/neutral position switch
  • Ignition switch ON, shift position in P, N
 0 to 3.0 V
  • Ignition switch ON, shift position except P, N
 9 to 14 V
PTNK (E6-31) - E2 (E10-28) P - BR Vapor pressure sensor Ignition switch ON
Apply vacuum 4.0 kPa (30 mmHG, 1.18 in.Hg)		 2.9 to 3.7 V
Below 0.5
TACH (E7-1) - E1 (E10-3) B-O - BR Engine speed Idling Pulse generation
ELS3 (E7-3) - E1 (E10-3) B-Y - BR Electric load
  • Power outlet OFF
 0 to 1.5 V
  • Power outlet ON
 7.5 to 14 V
STP (E7-4) - E1 (E10-3) G-W - BR Stop light switch
  • Brake pedal is depressed
 7.5 to 14 V
  • Brake pedal is released
 Below 1.5 V
SPD (E7-8) - E1 (E10-3) V-W - BR Speed signal from combination meter Ignition switch ON, rotate driving wheel slowly Pulse generation (See DTC P0500 VEHICLE SPEED SENSOR "A"  )
SIL (E7-13) - E1 (E10-3) W - BR Terminal SIL of DLC3 During charge of gears Pulse generation
TC (E7-17) - E1 (E10-3) P-B - BR Terminal TC of DLC 3 Ignition switch ON 9 to 14 V
W (E7-30) - E1 (E10-3) G-R - BR MIL
  • Ignition switch ON
 Below 3.0 V
  • Idling
 9 to 14 V
CCV (E6-5) - E1 (E10-3) L - BR CCV Ignition switch ON 9 to 14 V
#10 (E9-6) - E01 (E10-7) L - W-B Injector
  • Ignition switch ON
 9 to 14 V
#20 (E9-5) - E01 (E10-7) R - W-B    
#30 (E9-2) - E01 (E10-7) Y - W-B
  • Idling
 Pulse generation (See DTC P0300 RANDOM/MULTIPLE CYLINDER MISFIRE DETECTED; DTC P0301 CYLINDER 1 MISFIRE DETECTED; DTC P0302 CYLINDER 2 MISFIRE DETECTED; DTC P0303 CYLINDER 3 MISFIRE DETECTED; DTC P0304 CYLINDER 4 MISFIRE DETECTED  )
#40 (E9-1) - E01 (E10-7) W - W-B  
PRG (E9-23) - E1 (E10-3) B-R - BR EVAP VSV Ignition switch ON 9 to 14 V
VG (E9-28) - E2G (E9-30) R - L-W ass air flow meter Idling, shift lever position P or N position, A/C switch OFF 0.5 to 3.0 V
THA (E9-29) - E2 (E10-28) L-B - BR Intake air temperature sensor Idling, intake air temp. 20°C (68°F) 0.5 to 3.4 V
PSW (E9-32) - E1 (E10-3) R-W - BR P/S pressure switch Ignition switch ON 9 to 14 V
HA1A (E10-1) - E04 (E9-7) B-R - W-B A/F sensor heater
  • Idling
 Below 3.0 V
  • Ignition switch ON
 9 to 14 V
HT1B (E10-2) -E2 (E10-28) L-BR Heated oxygen sensor heater
  • Idling
 Below 3.0 V
  • Ignition switch ON
 9 to 14 V
M+ (E10-5) - ME01 (E9-3) B - W-B Throttle motor Idling Pulse generation
M- (E10-4) - ME01 (E9-3) W - W-B Throttle motor Idling Pulse generation
OC1+ (E10-13) - OC1-(E10-12) B-W - Y Camshaft timing oil control valve (OCV) Ignition switch ON Pulse generation (See DTC P0010 CAMSHAFT POSITION "A" ACTUATOR CIRCUIT (BANK 1)  )
IGT1 (E10-17) - E1 (E10-3) R-W - BR Ignition coil with igniter
(ignition signal)		 Idling 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 (E10-16) - E1 (E10-3) P - BR
IGT3 (E10-15) - E1 (E10-3) LG-B - BR
IGT4 (E10-14) - E1 (E10-3) L-Y - BR
VC (E10-18) - E2 (E10-28) Y - BR Power source of sensor (specific voltage) Ignition switch ON 4.5 to 5.5 V
VTA2 (E10-19) - E2 (E10-28) Y - BR Throttle position sensor (for sensor malfunction detection)
  • Ignition switch ON, accelerator pedal released
 2.1 to 3.1 V
  • Ignition switch ON, accelerator pedal depressed
 4.5 to 5.5 V
VTA1 (E10-20) - E2 (E10-28) LG - BR Throttle position sensor (for engine control)
  • Ignition switch ON, accelerator pedal released
 0.3 to 1.0 V
  • Ignition switch ON, accelerator pedal depressed
 3.2 to 4.9 V
A1A+ (E10-21) - E1 (E10-3) O - BR A/F sensor Ignition switch ON 3.3 V
IGF1 (E10-23) - E1 (E10-3) W-R - BR Ignition coil with igniter
(ignition confirmation signal)
  • Ignition switch ON
 4.5 to 5.5 V
  • Idling
 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  )
OX1B (E10-25) - E2 (E10-28) L (2) - BR
BR (3)- BR		 Heated oxygen sensor Maintain engine speed at 2,500 rpm for 2 minutes after warming up Pulse generation
G2+ (E10-26) - NE- (E10-34) O (2) - G
L 4(3) - G		 Camshaft position sensor Idling Pulse generation
(See DTC P0335 CRANKSHAFT POSITION SENSOR "A" CIRCUIT; DTC P0339 CRANKSHAFT POSITION SENSOR "A" CIRCUIT INTERMITTENT  )
NE+ (E10-27) - NE- (E10-34) R - G Crankshaft position sensor Idling Pulse generation
(See DTC P0335 CRANKSHAFT POSITION SENSOR "A" CIRCUIT; DTC P0339 CRANKSHAFT POSITION SENSOR "A" CIRCUIT INTERMITTENT  )
KNK1 (E10-29) - EKNK (E10-30) W - B Knock sensor Maintain engine speed at 4,000 rpm after warming up Pulse generation
(See 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)  )
A1A- (E10-31) - E1 (E10-3) W - BR A/F sensor Ignition switch ON 3.0 V
THW (E10-32) - E2 (E10-28) G-Y - BR Engine coolant temperature sensor Idling, engine coolant temp. 80°C (176°F) 0.2 to 1.0 V
(1) *1: A/T
(2) *3: TMC Made
(3) *4: TMMK Made
About FixVault