Honda Prelude 1993 Service Manual page 690

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Table of Contents

Troubleshooting (4WS)

4WS Indicator Light Circuit (cont'd)

4WS CONTROL UNIT CONNECTOR

View lrom terminal side

4WS CONTROL UNIT CONNECTOR

V i e w f r o m t e r m i n a l s i d e .

(From page 17-43)

Measure voltage between the

4WS control unit terminals: No.

'| 8 (WHTryEL) and No. 16 (BLK),

and botw€en No. 18 (WHT,ryEL)

and No. 24 (BLK).

Ropair tho poor ground lcso'l) o.

oDon in BLK wir6 bolwesn tho

4WS control unit and body

Turn the ignition switch ON.

Measure voltag€ between the

4WS control unit No. 25 terminal

(YEL/RED) and body ground,

Reprir op6n in tho YEL/REO wlr6

b€tw6€n the 4WS conlrol unh and

und€r-d6ah fuse/rolav box.

ls there battery voltageT

Measure voltage betwe€n the

4WS control unit No. 4 terminal

{BLK/YEL) and body ground,

Ropair open in tho 8LK/YEL wir6

botwoon tho 4WS control unit and

tho under-dash tusoholay box.

ls there battery voltage?

Measure voltage between the

4WS control unit No. 2 terminal

{WHT/BLU) and body ground.

Ropairop€n in th6 WHT/BLU wir6

b€twoon tho 4wS conttol unit and

tho undor-dash fuso/rolav box.

Roplaco th6 4WS control unit.

Troubleshooting