D OFF Indicator Light Circuit - caphector.com

CIRCUIT DESCRIPTION. The O/D main switch is a momentary type switch. When pressing the O/D main switch, the O/D OFF indicator light lights up and ECM ...
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DI-196 DIAGNOSTICS

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AUTOMATIC TRANSAXLE DI6UE-02

O/D Main Switch & O/D OFF Indicator Light Circuit CIRCUIT DESCRIPTION The O/D main switch is a momentary type switch. When pressing the O/D main switch, the O/D OFF indicator light lights up and ECM prohibits shifting to O/D, and when pressing it again, the O/D OFF indicator light goes off and ECM allows shifting to O/D. Turning the IG switch OFF will reset the O/D OFF indicator light.

WIRING DIAGRAM

Instrument Panel J/B 4 1O

GAUGE

ECM

C14 O/D OFF Indicator Light (Combination Meter)

13 1G

R-B

G-O 2

3

13 G-O IE2

4 E5 ODLP

14 G-O IE2

12

B-Y Ignition Switch

O/D Main Switch G-O

2

1

AM1

IG1

4 W-L

2

E5 ODMS

W-B 13 1P

8 1O 2

Instrument Panel J/B

AM1 1 1 *1

1C

B-G 4

Fuiseble ALT Link Block

2

1O

*2

B

*1: *2:

Ex. Puerto Rico Puerto Rico

W-B

ID Battery

D07918

2002 ECHO (RM884U)

Author:

Date:

366

DI-197 DIAGNOSTICS

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AUTOMATIC TRANSAXLE

INSPECTION PROCEDURE 1

Check operation of O/D main switch PREPARATION: Turn the ignition switch ON. CHECK: (a) Check O/D OFF indicator light when O/D main switch is pushed in to ON. (b) Check O/D OFF indicator light when O/D main switch is pushed again. OK: (a) O/D OFF indicator light lights up. (b) O/D OFF indicator light goes off. OK

Proceed to next inspection shown on problem symptoms tables (See page DI-163 ).

NG

2

Check and replace the combination meter (See page BE-2 ).

NG

Replace the combination meter.

OK

3

Check O/D main switch. PREPARATION: Disconnect the O/D main switch connector. CHECK: Check continuity between terminals 2 and 4 of O/D main switch connector. OK: O/D main switch condition

Specified condition

Press continuously O/D main switch

Continuity

Release O/D main switch

No continuity

Q08233

NG

Replace and repair O/D main switch.

OK 2002 ECHO (RM884U)

Author:

Date:

367

DI-198 DIAGNOSTICS

4

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AUTOMATIC TRANSAXLE

Check voltage between terminal ODMS of ECM and body ground. PREPARATION: Turn the ignition switch ON. CHECK: Check voltage between terminal ODMS of ECM and body ground when O/D main switch is ON and OFF. OK:

ON

ODMS

O/D main switch

Specified voltage

Press continuously O/D main switch

Below 1.0 V

Release O/D main switch

10 - 14 V

D08011

OK

Check and replace the ECM (See page IN-29 ).

NG

5

Check voltage between terminal ODLP of ECM and body ground. ON

PREPARATION: (a) Disconnect the connector of ECM. (b) Turn the ignition switch ON. CHECK: Check voltage between terminal ODLP of ECM and body ground. OK: Voltage: 7.5 - 14 V

ODLP

(-)

(+)

D05647

OK

Check and replace the ECM (See page IN-29 ).

NG

Check and replace harness and connector between combination meter and ECM, O/D main switch and ECM, O/D main switch and body ground (See page IN-29 ).

2002 ECHO (RM884U)

Author:

Date:

368