G34774
GND
5V/
Division
1 msec./ Division
G34775
PCV+
5 V/
Division
5 msec./Division
GND
--
DIAGNOSTICS
ECD SYSTEM (1ND -- TV)
05 -- 27
COROLLA Supplement (RM1129E)
Symbols (Terminals No.) STD Voltage (V)
Condition
Terminal Description
Wiri ng Color
TA CH (E24 -- 20) -- E1 (E24 -- 2)
W (B) -- W--B
Engine speed
Idling
Pulse generation
STP1 (E24 -- 8) -- E1 (E24 -- 2)
S B ( G -- W ) --
W--B
Stop lamp switch
Brake pedal depressed
9 to 15
STP1 (E24 -- 8) -- E1 (E24 -- 2)
S B ( G -- W ) --
W--B
Stop lamp switch
Brake pedal released
0 to 1.5
STP2 (E24 -- 27) -- E1 (E24 -- 2)
G--R -- W--B
Stop lamp switch
(opposite to STP)
Brake pedal depressed
0 to 1.5
STP2 (E24 -- 27) -- E1 (E24 -- 2)
G--R -- W--B
Stop lamp switch
(opposite to STP)
Brake pedal released
7.5 to 15
TC (E24 -- 28) -- E1 (E24 -- 2)
W (P--B) -- W--B
Terminal TC of DLC3
Ignition switch ON
9 to 15
SIL (E24 -- 5) -- E1 (E24 -- 2)
W (L--R) -- W--B
Terminal SIL of DLC3
Connect i ntelligent tester ll to DLC3
Pulse generation
SPD (E24 -- 66) -- E1 (E24 -- 2)
V--R -- W--B
Speed signal from com -
bination meter
Ignition switch ON, rotate driving
wheel slowly
STA (E24 -- 9) -- E1 (E24 -- 2)
SB (B -- W) *
4
--
W--B
SB (B -- R) *
3, 5
--
W--B
Starter s ignal
Cranking
6.0 or m ore
CE (E24 -- 79) -- E1 (E24 -- 2)
W (R--Y) -- W--B
MIL
MIL illuminated
0 to 3
CE (E24 -- 79) -- E1 (E24 -- 2)
W (R--Y) -- W--B
MIL
MIL not illuminated
9 to 15
GIND (E24 -- 19) -- E1 (E24 -- 2)
W (R) -- W--B
Gl ow l amp
Gl ow lamp illuminated
0 to 3
GIND (E24 -- 19) -- E1 (E24 -- 2)
W (R) -- W--B
Gl ow l amp
Gl ow lamp not illuminated
9 to 15
*
1
: LHD
*
2
: RHD
*
3
: TMUK MADE
*
4
: T MC MADE
*
5
: T MMT MADE
WAVEFORM 1
VRV for turbocharger signal
ECM Terminal Name
Between VNT and E1
Tester Range
5 V/Division, 1 msec./Division
Condition
Idling with warm engine
HINT:
The waveform changes depending on the VRV for turbochar-
ger operation.
WAVEFORM 2
Fuel metering unit (supply pump) signal
ECM Terminal Name
Between PCV and E1
Tester Range
5 V/Division, 5 msec./Division
Condition
Idling with warm engine
HINT:
The waveform varies depending on the fuel metering unit op-
eration.
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TOYOTA COROLLA REPAIR MANUAL SUPP 1129E