PPrroobblleem m CCaauusse e CCoorrrreeccttiioonn
2. 2. BatteBattery ry liglight (ht (DS3) DS3) isis
illuminated.illuminated.
1. 1. CharCharge indge indicaticator reor relay (lay (K3) iK3) iss
defective.defective.
2. 2. DefectiDefective ve alternatoralternator..
3. 3. TherThere is e is a shora short on wt on wire ire #34.#34.
4. 4. WirWire #5 is e #5 is open oopen or shr shorteorted.d.
1. 1. ReplReplace chace charge iarge indicndicator rator relayelay
(K3)(K3). . RefRefer ter tooAlternatorAlternatorof theof the
Component Component TTroubleshootingroubleshooting..
2. 2. ReplReplace ace altalternaternatoror..
3. 3. IsolIsolate aate and rnd repaiepair wr wireire..
4. 4. IsolIsolate aate and rnd repaiepair wr wireire..
3. 3. Seat Seat Belt Belt liglight (ht (DS4)DS4)
is illuminated.is illuminated.
11. . SSeeaat t bbeellt t iis s uunnffaasstteenneedd. . 11. . FFaasstteen n sseeaat t bbeelltt..
4. 4. Seat Seat Belt Belt liglight (ht (DS4)DS4)
is illuminated withis illuminated with
the seat belt fas-the seat belt fas-
tened.tened.
1. 1. Seat belSeat belt relt relay (K2ay (K2) is def) is defectiective.ve.
2. 2. WirWire #35 fre #35 from Seaom Seat Belt Belt ligt lightht
(DS4) to seat belt relay (K2) has a(DS4) to seat belt relay (K2) has a
short on it.short on it.
3. 3. WirWire #38 or e #38 or #35 fr#35 from thom the enabe enablele
relay (K20) is open.relay (K20) is open.
4. 4. DefeDefectictive seat beve seat belt swlt switcitch (S18)h (S18)..
1. 1. ReRefer fer to to thetheComponent Trouble-Component Trouble-
shootingshootingfound earlier in this sec-found earlier in this sec-
tion.tion.
2. 2. IsolIsolate aate and rnd repaiepair sr shorthort..
3. 3. IsolIsolate ate and and repairepairr..
4. 4. ReplReplace ace seat seat beltbelt..
5. 5. ShifShift Ft Fail ail liglight (ht (DS6)DS6)
is illuminated.is illuminated.
(if equipped with(if equipped with
APC-70)APC-70)
1. 1. ShifShift requet request is oust is outsitside of shifde of shiftingting
parameters.parameters.
1. 1. Operate Operate truck truck correctcorrectly ly (refer (refer toto
the Operator’s Guide for properthe Operator’s Guide for proper
shiftinshifting g operations)operations)..
6. 6. Low Low Air Air liglight (ht (DS7)DS7)
is illuminated andis illuminated and
buzzer (LS5) isbuzzer (LS5) is
energized.energized.
continuedcontinued
1. 1. Air pAir presressure isure is bels below 75 psow 75 psi.i.
2. 2. WirWire #31 is e #31 is shorshorted betted between tween thehe
low air pressure switch (S13) andlow air pressure switch (S13) and
Low Air light (DS7).Low Air light (DS7).
1. 1. LocatLocate and ree and repair pair leak (leak (checcheck allk all
fittings, hoses, seals, air tank, ser-fittings, hoses, seals, air tank, ser-
vice brake valve, de-clutch valvevice brake valve, de-clutch valve
and brake actuators).and brake actuators).
2. 2. IsolIsolate ate and and repairepair sr shorthort. . A goA goodod
indication of this problem will beindication of this problem will be
the air pressure gauge on thethe air pressure gauge on the
instrument panel shows good airinstrument panel shows good air
pressure.pressure.
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