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5 - 60
BRAKES
•
CLEARING
A FAULT
CODE
To clear a fault code, disconnect the control module
connector or disconnect the battery for a minimum of
five seconds. During system retest, wait 30 seconds
to be sure the fault code does not reappear.
FAULT
CODE
NUMBER TYPICAL FAILURE DETECTED
1
Not used.
2
Open isolation valve wiring or bad control
module.
3
Open dump valve wiring or bad control
module.
4
Closed RWAL valve switch.
5
Over 16 dump pulses generated in 2WD
vehicles (disabled for 4WD).
6
Erratic speed sensor reading while rolling.
7
Electronic control module fuse pellet open,
isolation output missing, or valve wiring
shorted to ground.
8
Dump output missing or valve wiring shorted to
ground.
9
Speed sensor wiring/resistance (usually high
reading).
10
Sensor wiring/resistance (usually low reading).
11
Brake switch always on. RWAL light comes on
when speed exceeds 40 mph.
12
Not used.
13
Electronic control module phase lock loop
failure.
14
Electronic control module program check
failure.
15
Electronic control module RAM failure.
J90Q5-101
Fig. 8 RWAL System Fault Codes
Refer to Figures 9, 10 and 11 for module connector
pin identification, diagnostic connector locations and
component locations. Refer to the wiring schematics
i n Group 8 for R W A L system electrical circuitry and
wire identification.
MODULE
CONNECTOR
WASHER
BOTTLE
BLACK
6-WAY
CONNECTOR
Fig. 9 Connector
Locations
o o o . o o o o
10
11
12
13
14
o o o o o o o
8905-38
Fig. 10 Module Connector Identification
8 9
10
11 12 13 14
1
2 3 4 5 6 7
8905-39
Fig. 11 Module Connector Pin Position
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