Terminals Of ECM

WARNING: This page is about a different car, the 2005 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Terminals Of ECM

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Pulse generation 1

Reference:

WAVE REFERENCE CHART

Item	Condition
Terminal	SLT+ - SLT-
Tool setting	5V/DIV, 1ms/DIV
Vehicle condition	Engine idle speed

Fig 2: Pulse Generation 1 Wave Form

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Pulse generation 2

Reference:

WAVE REFERENCE CHART

Item	Condition
Terminal	SLU+ - SLU-
Tool setting	5V/DIV, 1ms/DIV
Vehicle condition	Engine idle speed

Fig 3: Pulse Generation 2 Wave Form

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Pulse generation 3

Reference:

WAVE REFERENCE CHART

Item	Condition
Terminal	SL2+ - SL2-
Tool setting	5V/DIV, 1ms/DIV
Vehicle condition	Engine idle speed

Fig 4: Pulse Generation 3 Wave Form

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Pulse generation 4

Reference:

WAVE REFERENCE CHART

Item	Condition
Terminal	SL1+ - SL1-
Tool setting	5V/DIV, 1ms/DIV
Vehicle condition	Engine idle speed

Fig 5: Pulse Generation 4 Wave Form

Pulse generation 5

Reference:

WAVE REFERENCE CHART

Item	Condition
Terminal	NT+ - NT-
Tool setting	1V/DIV, 2ms/DIV
Vehicle condition	Engine idle speed

Fig 6: Pulse Generation 5 Wave Form

Pulse generation 6

Reference:

WAVE REFERENCE CHART

Item	Condition
Terminal	SP2+ - SP2-
Tool setting	2V/DIV, 20ms/DIV
Vehicle condition	Vehicle speed 20 km/h (12 mph)

Fig 7: Pulse Generation 6 Wave Form