Dodge RAM TRUCK 1500 1995 Service Manual page 478

B R - ^ —
(1) Disconnect wiring harness connector at motor.
Connect jumper from terminal P2 to terminal L of
wiper motor (Fig. 4).
_ TERMINALS
J948K-26
Fig. 4 One Jumper Wire Between Terminal P2 and L.
One Jumper Wire Between Terminal P1 and B+.
(2) Connect second jumper from terminal PI to
battery. If motor runs to park position and stops,
wiper/washer switch is faulty. If motor keeps running
and does not park, replace motor assembly.
CONDITION
Motor will stop wherever it is, when wiper/
washer switch is put in OFF position. (Wipers
do not continue running to park position.)
PROCEDURE
(1) Remove motor wiring connector and clean ter­
minals. Reconnect connector and test motor. If not
OK, go to step 2.
(2) Put wiper/washer switch in OFF position. Dis­
connect motor wiring connector. Connect a voltmeter
or test lamp to the motor ground strap. Connect the
other lead to terminal PI of wiring connector. If volt­
age is not present, check for an open circuit in the
wiring harness or wiper/washer switch. If voltage is
present, go to next step.
(3) Connect an ohmmeter or continuity tester be­
tween terminals L and P2 (Fig. 5). If there is conti­
nuity between these terminals, the problem is a
defective motor. If there is no continuity, the problem
is an open in wiring or a faulty wiper/washer switch.
/IULTI-FUNCTION SWITCH
Use an ohmmeter to test for continuity (no resis­
tance) between the terminals of the switch as shown
in the Multi-Function Switch Continuity chart (Fig.
6).
WiPEi AND WASHEI SYSTEiS 81 - 1
OHAAMETER TERMINALS
Fig. 5 Ohmmeter Between Terminal L and P2
I 17 16 15 1 4 / ^ \ 1 3 12 11 10 I
9 8 7 6
^5^4
3 2 1
J
fcri o ezi e n a era a a czs a r s I
MULTIFUNCTION SWITCH
P I N S
SWITCH
POSITION
C O N T I N U I T Y
SETWEEN
OFF PIN 6 AND PIN 7
DELAY
PIN 8 AND PIN 9
PIN 2 AND PIN 4
PIN 1 AND PIN 2
PIN 1 AND PIN 4
LOW PIN 4 AND PIN 6
HIGH P!
B
v; 4 AND PIN 5
WASH
PIN 3 AND PIN 4
* RESISTANCE AT AAAXIMUM
D E L A Y P O S I T I O N
SHOULD BE
BETWEEN 270,000 OHMS A N D 330,000 OHMS.
•RESISTANCE A T MINIMUM DELAY POSITION SHOULD BE
Z E R O
WT7H OHAAMETER SET ON HIGH OHM SCALE.
918J-4
Fig. 6 Multi-Function Switch Continuity
INTERMITTENT WIPE MODULE
See Wiper Motor or Multi-Function Switch for di­
agnosis of system problems which do not involve the
DELAY function. If problem occurs only in the DE­
LAY mode, the following tests are to be performed.
These tests involve disconnecting the intermittent
wipe module, which can be found on a bracket lo­
cated behind the knee blocker (Fig. 7).
CONDITION
Excessive delay (more than 30 seconds) or in­
adequate variation in delay.
PROCEDURE
Variations in delay should be as follows: