Suzuki RA410, Руководство пользователя

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INSPECTION OF ECM/PCM AND ITS CIR-
CUITS
ECM/PCM (1) and its circuits can be checked at ECM/PCM
wiring connectors by measuring voltage and resistance.
VOLTAGE CHECK
1) Remove ECM/PCM from body referring to ECM/PCM RE-
MOVAL.
2) Connect ECM/PCM connectors to ECM/PCM.
3) Check voltage at each terminal of connectors connected.
NOTE:
As each terminal voltage is affected by the battery voltage,
confirm that it is 11 V or more when ignition switch is turned
to ON position.
CAUTION:
ECM/PCM cannot be checked by itself. It is strictly pro-
hibited to connect voltmeter or ohmmeter to ECM/PCM
with connectors disconnected from it.
1
1
6E1-46 ENGINE AND EMISSION CONTROL SYSTEM
TERMINAL ARRANGEMENT OF ECM/PCM CONNECTOR (VIEWED FROM HARNESS SIDE)
C1
A13
C11
A12
C12 C13
C10 C9 C8 C7 C6 C5 C4 C3
C2
C14 C24 C25 C26 C23 C22 C21 C20 C19 C18 C17 C16 C15
B1 B8 B7 B6 B5 B4 B3 B2
B14 B16 B15 B13 B12 B1 1 B10 B9
A1 A8 A7 A6 A5 A4 A3 A2 A11 A10 A9
A14 A20 A19 A18 A17 A16 A15 A22 A21
TERMINAL
POSITION
WIRE
COLOR
CIRCUIT NORMAL VOLTAGE CONDITION
A1 B/R Power source 10 – 14V Ignition switch ON
A2 B/W Ignition switch signal 10 – 14V Ignition switch ON
A3 Lg ECT sensor
About 2.9 V Engine coolant temp.: 20 °C
A3 Lg ECT sensor
About 0.8 V Engine coolant temp.: 80 °C
A4 W/B A/C evaporator temp. sensor About 2.4 V A/C ventilator outlet temp.: 20 °C
A5 W Knock sensor About 2.5 V Engine running at idle speed
A6 Gr/Bl TP sensor
0 – 1 V Throttle valve at idle position
A6 Gr/Bl TP sensor
About 4 V Throttle valve at full open position
A7 R Heated oxygen sensor
Deflects between
0 V and 1 V
Engine running at normal operating temperature
A8 Lg/R MAP sensor
About 2.0 V Ignition switch ON and engine stopped
A8 Lg/R MAP sensor
About 1.0 V Engine running at idle speed
A9 B CMP sensor (–) 0 – 1 V Ignition switch ON
A10 W CMP sensor (+) 0 – 1 V Ignition switch ON
A11 — Not used — —
A12 P/B A/C compressor magnet clutch
10 – 14 V A/C compressor: ON
A12 P/B A/C compressor magnet clutch
0 – 1 V A/C compressor: OFF
A13 B Ground 0 – 1 V —
A14 — Not used — —
A15 Lg/B IAT sensor
About 2.9 V IAT sensor ambient temp.: 20 °C
A15 Lg/B IAT sensor
About 0.8 V IAT sensor ambient temp.: 80 °C