Check A/T Device (Detention Switch) Circuit

CHECK FUNCTION

With CONSULT-II

Check that when the A/T selector lever is in P position, "DETENT SW" on the DATA MONITOR becomes OFF.

DATA MONITOR CONTENTS CHART

Monitor item [OPERATION or UNIT]		Contents
Detention SW	"ON/OFF"	The selector lever position "P position (OFF)/other than P position (ON)" judged from the detention switch signal is displayed.

Fig 1: CONSULT II Display - DATA MONITOR

Without CONSULT-II

Check voltage between driver seat control unit connector and ground.

VOLTAGE SPECIFICATION

Driver seat control unit connector	Terminal		Condition of A/T selector lever	Voltage (V) (Approx.)
Driver seat control unit connector	(+)	(-)	Condition of A/T selector lever	Voltage (V) (Approx.)
M204	21	Ground	P position	0
M204	21	Ground	Other than above	Battery voltage

OK or NG

OK: A/T device (detention switch) circuit is OK.

NG: GO TO 2.

Fig 2: Checking Voltage Between Driver Seat Control Unit Connector And Ground

CHECK A/T DEVICE (PARK POSITION SWITCH) HARNESS

Check continuity between A/T device connector and driver seat control unit connector.

CONTINUITY SPECIFICATION

A		B		Continuity
Driver seat control unit connector	Terminal	A/T device connector	Terminal	Continuity
M204	21	M133	10	Yes

Check continuity between driver seat control unit connector and ground.

CONTINUITY SPECIFICATION

Driver seat control unit connector	Terminal	Ground	Continuity
M204	21	Ground	No

Fig 3: Checking Continuity Between A/T Device Connector And Driver Seat Control Unit Connector

OK or NG

OK: GO TO 3.

NG: Repair or replace harness.

CHECK PARK POSITION SWITCH

Check continuity between A/T device (detention switch) as follows.

CONTINUITY SPECIFICATION

A/T device	Terminals		Condition	Continuity
M133	9	10	P position	Yes
M133	9	10	Other than P position	No

Fig 4: Checking Continuity Between A/T Device

OK or NG

OK: Check the condition of the harness and the connector.

NG: Replace A/T device.