Reading Fault Messages

Using DRB-II, read fault messages and perform appropriate test listed in FAULT MESSAGES table. If DRB-II displays NO RESPONSE message, perform TEST 23A. If other DRB-II related communication problems exist, see VEHICLE COMMUNICATIONS article in ENGINE PERFORMANCE. If multiple fault messages are present, fault repairs must be performed in order in which they are displayed. If no fault messages are present, perform VERIFICATION TEST VER-1A.

FAULT MESSAGES

Fault Message	Perform Test
CONTROLLER FAILURE	2A
"G" SWITCH NOT PROCESSABLE	3A
HYDRAULIC FAILURE	4A
LEFT FRONT INLET VALVE	5A
LEFT FRONT OUTLET VALVE	6A
LEFT FRONT SENSOR CIRCUIT FAILURE	7A
LEFT FRONT SENSOR CONTINUITYK25 MPH	7A
LEFT FRONT SENSOR CONTINUITYJ25 MPH	7A
LEFT FRONT SENSOR SIGNAL MISSING	7A
LEFT FRONT WHEEL SPEED COMPARISON	7A
REAR INLET VALVE	9A
REAR OUTLET VALVE	10A
LEFT REAR SENSOR CIRCUIT FAILURE	11A
LEFT REAR SENSOR CONTINUITYK25 MPH	11A
LEFT REAR SENSOR CONTINUITYJ25 MPH	11A
LEFT REAR SENSOR SIGNAL MISSING	11A
LEFT REAR WHEEL SPEED COMPARISON	11A
MAIN RELAY/POWER CIRCUIT FAILURE	13A
PEDAL TRAVEL SENSOR CIRCUIT	14A
PUMP MOTOR CIRCUIT NOT WORKING PROPERLY	15A
RIGHT FRONT INLET VALVE	16A
RIGHT FRONT OUTLET VALVE	17A
RIGHT FRONT CIRCUIT FAILURE	18A
RIGHT FRONT SENSOR CONTINUITYK25 MPH	18A
RIGHT FRONT SENSOR CONTINUITYJ25 MPH	18A
RIGHT FRONT REAR SENSOR SIGNAL MISSING	18A
RIGHT FRONT WHEEL SPEED COMPARISON	18A
RIGHT REAR SENSOR CIRCUIT FAILURE	20A
RIGHT REAR SENSOR CONTINUITYK25 MPH	20A
RIGHT REAR SENSOR CONTINUITYJ25 MPH	20A
RIGHT REAR SENSOR SIGNAL MISSING	20A
RIGHT REAR WHEEL SPEED COMPARISON	20A
ABS WARNING LAMP ILLUMINATION PROBLEM	22A
NO RESPONSE	23A