Diagnostic Trouble Code (Dtci: 33 - Honda Prelude 1993 Service Manual

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Troubleshooting (4WS)

Diagnostic Trouble Code (DTCI: 33

NOTE: Problem code 33 is memorized when the front wheels are turned at a speed ot 30 km/h for 2 minutes with the

lront wheels raised off the ground and the rear wheels blocked. (Parking brake must be off to test this code.)

4WS CONTROL UNIT 18P CONNECTOR

View from terminal side

Perfo.m troubleshooting ol tho ABS system

(pag6 '19-541

-The 4WS indicator light has

boon roDortod on.

-Whh sorvic6 chack connoctor

iumpod codo 33 ir indicsted.

Does the ABS light stay ON?

Stop the engino. Then turn the ig-

nition switch back ON.

Rotate the rear left wheel slowly

and check for voltage b€tween

the 4WS unit control No. 1 termi-

nal IGRY/RED) and body ground,

and between the No. 3 terminal

(GRYA HT) and body ground.

Record tho DTC and clear th6

4WS control unit. T6st driv€ th€

car, if th6 DTC doos not rsappoar,

chock tho torminal3 connoctions

ot tho 4WS control unit 18P con-

nector and tho ABS control unlt

14P connoctor.

Does the voltage from both rear

wheel sensors alternate from

zero to approximately 5 V?

(To page 17-69)

Troubleshooting