Vehicle Speed Signal Circuit

AUDIO / VISUAL: AUDIO AND VISUAL SYSTEM: Vehicle Speed Signal Circuit
- Vehicle Speed Signal Circuit

DESCRIPTION

The circuit is necessary for ASL (Automatic Sound Levelizer). Speed signals are received from the combination meter and used for the ASL.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT COMBINATION METER (SPEEDOMETER)

(a) Drive the vehicle and check that the function of the speedometer on the combination meter is normal.

OK:

Actual vehicle speed and the speed indicated on the speedometer are the same.

NG -- GO TO METER / GAUGE SYSTEM
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (COMBINATION METER - RADIO RECEIVER, STEREO COMPONENT AMP.)

(a) Disconnect the E19 meter connector.





(b) Disconnect the L13 (*1) amplifier or E88 (*2) receiver connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





HINT
*1: for Separate Type Amplifier System

*2: for Built-in Type Amplifier System

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE