Toyota 2GR-FE Manual page 886

ST–24
Symbols (Terminal No.)
+B (A55-2) - Body ground
+B2 (A55-1) - Body ground
IGSW (A55-28) - Body ground
E01 (C55-22) - Body ground
E02 (C55-21) - Body ground
E03 (C55-104) - Body ground
E04 (C55-23) - Body ground
E05 (C55-46) - Body ground
E1 (C55-81) - Body ground
ME01 (C55-20) - Body ground
Symbols (Terminal No.)
STA (A55-48) - E1 (C55-81)
ACCR (A55-13) - E1 (C55-81)
TACH (A55-15) - E1 (C55-81)
ST
STP (A55-36) - E1 (C55-81)
STP (A55-36) - E1 (C55-81)
STAR (C55-63) - E1 (C55-81)
2GR-FE STARTING – SMART KEY SYSTEM
3. CHECK ECM
C55
(a) Disconnect the C55 and A55 ECM connectors.
(b) Measure the voltage and resistance of the wire
Wiring Color Terminal Description
R - Body ground Power source of ECM
R - Body ground Power source of ECM
Y - Body ground Ignition switch signal
W-B - Body ground Ground
W-B - Body ground Ground
B - Body ground Ground
W - Body ground Ground
W - Body ground Ground
W-B - Body ground Ground
B - Body ground Ground
(c) Reconnect the ECM connectors.
(d) Measure the voltage of the connectors.
Wiring Color Terminal Description
Starter relay operation
V - W-B
signal
ACC relay cut signal
B - W-B
(output)
Engine revolution signal
B - W-B
(output)
Stop light switch signal
W - W-B
(input)
Stop light switch signal
W - W-B
(input)
R - W-B PNP switch signal (input)
harness side connectors.
Condition
Engine switch on (IG)
Engine switch on (IG)
Engine switch on (IG)
Always
Always
Always
Always
Always
Always
Always
If the result is not as specified, there may be a
malfunction on the wire harness side.
Condition
Cranking
Brake pedal depressed,
shift lever P position,
engine switch is pushed
once → on (IG)
Idling
Brake pedal depressed
Brake pedal released
Engine switch on (IG),
shift position P or N
HINT:
1
* : Voltage is output only when the engine is
cranking.
A55
A107881E32
Specified Condition
10 to 14 V
10 to 14 V
10 to 14 V
Below 1 Ω
Below 1 Ω
Below 1 Ω
Below 1 Ω
Below 1 Ω
Below 1 Ω
Below 1 Ω
Specified Condition
10 to 14 V
1 → Output
0.1 to 0.8 V *
voltage at terminal AM1 or
AM2 is -2 V or more.
Pulse generation (see
waveform 1)
7.5 to 14 V
Below 1.5 V
10 to 14 V