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Kenworth SmartWheel Troubleshooting Guide
16
TITLE
Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Service Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
TIBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
How to use this Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Tools for Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Troubleshooting Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
A. Start - No Functions Work or Operation is Intermittent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
A2. Possible cause: Bad electrical connection to hub or slip rings.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
A2. Possible cause: Bad electrical connection to hub or slip rings.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
A3. Possible cause: Bad electronics module or steering wheel hub. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
B. Horn Does Not Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
B1. Possible cause: No power or ground in horn circuit.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
B2. Possible cause: Bad horn relay in power distribution box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
B3. Possible cause: Problem in circuit R11HN.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
B4. Possible cause: Bad electronics module or steering wheel hub. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
C. Engine Retarder Does Not Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
C1. Symptom: Engine retarder will not turn on (1994 Cummins only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
C2. Symptom: Engine retarder will not turn on (all engines). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
C3. Symptom: Retarder works only when button held down or does not turn on.. . . . . . . . . . . . . . . . . . . . . . . . . .21
D. Cruise Control Does Not Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
D1. Symptom: Cruise Control will not turn on.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
D2. Symptom: Cruise SET will not work.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
D3. Symptom: Cruise RESUME will not work. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
E. Headlight Flash Does Not Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
E1. Symptom: Headlights do not turn on. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
E1. Symptom: Headlights do not turn on. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
E2. Symptom: Headlights do not flash on with SmartWheel switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
E3. Symptom: Headlights do not blink off with SmartWheel switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
F. Marker Lamp Flash Does Not Work. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
F1. Symptom: Marker lights do not turn on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
F1. Symptom: Marker lights will not turn on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
F2. Symptom: Marker lights do not flash on with SmartWheel switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
F3. Symptom: Marker lights do not blink off with Smart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
(01/02)
KM816010
CONTENTS
MAINTENANCE MANUAL
16
PAGE

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Summary of Contents for Kenworth SmartWheel KM816010

  • Page 1: Table Of Contents

    0Kenworth SmartWheel Troubleshoot- ing Guide KM816010 01/02 MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide CONTENTS TITLE PAGE Related Documents ................1 Service Manuals .
  • Page 2: Related Documents

    16Kenworth SmartWheel Troubleshooting Guide KM816010 01/02 MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide Related Documents Wiring Diagrams SmartWheel Multiplex Switch Module K301-415 01 Service Manuals Headlamps w/Multiplex (SmartWheel) Steering Wheel P94-1191 - 01 Kenworth SmartWheel Troubleshooting Guide, KM816010. Horn Multiplex Steering Wheel R115-5453 01...
  • Page 3: Wiring

    MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide Wiring Figure 16-1 Page 2 of 44 KM816010 (01/02)
  • Page 4: Purpose

    MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide Purpose Tools for Troubleshooting • Kenworth SmartWheel Multiplex Steering Wheel Tes- The purpose of this guide is to locate malfunctions in the ter (strongly recommended). - Volt-ohmmeter rated • wiring at 20,000 ohms per volt. For proper connections, see •...
  • Page 5 MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide Figure 16-3 Page 4 of 44 KM816010 (01/02)
  • Page 6: Troubleshooting Charts

    MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide Troubleshooting Charts A. Start - No Functions Work or Operation is Intermittent A1. Possible cause: Open circuit in BA11 or Gnd circuit to elect. module (circuits PCB 1, 2, 3, or 4 and G N D).
  • Page 7 MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide Figure 16-4 Page 6 of 44 KM816010 (01/02)
  • Page 8: A2. Possible Cause: Bad Electrical Connection To Hub Or Slip Rings

    MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide A. Start - No Functions Work Or Operation is Intermittent A2. Possible cause: Bad electrical connection to hub or slip rings. Check Result What To Do Next A2-1 Wires/connections OK. Go to A2-2. Remove 4 screws holding hub to Wires or connectors disconnected, Repair/replace terminals or wires.
  • Page 9 MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide Figure 16-5 Page 8 of 44 KM816010 (01/02)
  • Page 10: A2. Possible Cause: Bad Electrical Connection To Hub Or Slip Rings

    MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide A. Start - No Functions Work Or Operation is Intermittent A2. Possible cause: Bad electrical connection to hub or slip rings. Check Result What To Do Next A2-4 No grease exists. Apply contact ring grease (available...
  • Page 11 MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide Figure 16-6 Page 10 of 44 KM816010 (01/02)
  • Page 12: Horn Does Not Work

    MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide B. Horn Does Not Work NOTE: Use this section only if horn does not work. If none of the SmartWheel functions work, go to Section A. B1. Possible cause: No power or ground in horn circuit.
  • Page 13 MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide Figure 16-7 Page 12 of 44 KM816010 (01/02)
  • Page 14: B3. Possible Cause: Problem In Circuit R11Hn

    MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide B. Horn Does Not Work B3. Possible cause: Problem in circuit R11HN. Check Result What To Do Next B3-1 Ckt has continuity. Go to B4. Unplug the 8 way connector from the No continuity.
  • Page 15 MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide Figure 16-8 Page 14 of 44 KM816010 (01/02)
  • Page 16: Engine Retarder Does Not Work

    MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide C. Engine Retarder Does Not Work C1. Symptom: Engine retarder will not turn on (1994 Cummins only). C1-1. Possible cause: No power or ground to retarder circuit. Check Result What To Do Next C1-1A Circuit breaker or fuse OK.
  • Page 17 MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide Figure 16-9 Page 16 of 44 KM816010 (01/02)
  • Page 18 MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide C. Engine Retarder Does Not Work C1-3. Possible cause: Bad retarder relay(s) in power distribution box. Check Result What To Do Next C 1-3A Click heard. Determine which relay was clicking. Turn on ignition. Press the retarder Remove this relay.
  • Page 19 MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide Figure 16-10 Page 18 of 44 KM816010 (01/02)
  • Page 20: C2. Symptom: Engine Retarder Will Not Turn On (All Engines)

    MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide C. Engine Retarder Does Not Work NOTE: Use this section only if retarder does not work. If none of the SmartWheel functions work, go to Section A. C2. Symptom: Engine retarder will not turn on (all engines).
  • Page 21 MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide Figure 16-11 Page 20 of 44 KM816010 (01/02)
  • Page 22: C3. Symptom: Retarder Works Only When Button Held Down Or Does Not Turn On

    MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide C. Engine Retarder Does Not Work C3. Symptom: Retarder works only when button held down or does not turn on. C3-1. Possible cause: No ignition power to electronics module. Check Result What To Do Next C3-1A LED on.
  • Page 23 MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide Figure 16-12 Page 22 of 44 KM816010 (01/02)
  • Page 24: Cruise Control Does Not Work

    MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide D. Cruise Control Does Not Work D1. Symptom: Cruise Control will not turn on. D1-1. Possible cause: No ignition power to electronics module. Check Result What To Do Next D1 -1 A LED on.
  • Page 25 MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide Figure 16-13 Page 24 of 44 KM816010 (01/02)
  • Page 26: D2. Symptom: Cruise Set Will Not Work

    MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide D. Cruise Control Does Not Work D1-3. Possible cause: Bad electronics module or steering wheel hub. Check Result What To Do Next D 1-3A Continuity after “On” button is Problem is not in multiplex steering Unplug 1 4-way connector from elec- pushed.
  • Page 27 MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide Figure 16-14 Page 26 of 44 KM816010 (01/02)
  • Page 28: D3. Symptom: Cruise Resume Will Not Work

    MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide D. Cruise Control Does Not Work D3. Symptom: Cruise RESUME will not work. D3-1. Possible cause: Problem in cruise control wiring. Check Result What To Do Next D3-1A Wiring, connectors OK all circuits Go to D3-2.
  • Page 29 MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide Figure 16-15 Page 28 of 44 KM816010 (01/02)
  • Page 30: Headlight Flash Does Not Work

    MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide E. Headlight Flash Does Not Work NOTE: Use this section only if headlights or headlight flash does not work. If none of the Smart Wheel functions work, go to Section A. E1. Symptom: Headlights do not turn on.
  • Page 31 MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide Figure 16-16 Page 30 of 44 KM816010 (01/02)
  • Page 32: E1. Symptom: Headlights Do Not Turn On

    MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide E. Headlight Flash Does Not Work E1. Symptom: Headlights do not turn on. E 1-2. Possible cause: Problem in headlight circuits. Check Result What To Do Next E1 -2A Wires/connectors OK. Go to E1-2B.
  • Page 33 MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide Figure 16-17 Page 32 of 44 KM816010 (01/02)
  • Page 34 MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide E. Headlight Flash Does Not Work E1. Symptom: Headlights will not turn on E1-4. Possible cause: Bad headlamps relay in power distribution box. Check Result What To Do Next E 1 -4A Click heard.
  • Page 35 MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide Figure 16-18 Page 34 of 44 KM816010 (01/02)
  • Page 36: E2. Symptom: Headlights Do Not Flash On With Smartwheel Switch

    MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide E. Headlight Flash Does Not Work E2. Symptom: Headlights do not flash on with SmartWheel switch. E2-1. Possible cause: Problem in circuit R5NO. Check Result What To Do Next E2-1A Ckt has continuity. Go to E1-1.
  • Page 37 MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide Figure 16-19 Page 36 of 44 KM816010 (01/02)
  • Page 38: Marker Lamp Flash Does Not Work

    MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide F. Marker Lamp Flash Does Not Work NOTE: Use this section only if marker lights or marker light flash does not work. If none of the SmartWheel functions work, go to Section A. F1. Symptom: Marker lights do not turn on.
  • Page 39 MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide Figure 16-20 Page 38 of 44 KM816010 (01/02)
  • Page 40: F1. Symptom: Marker Lights Do Not Turn On

    MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide F. Marker Lamp Flash Does Not Work F1. Symptom: Marker lights do not turn on F1-2. Possible cause: Problem in marker light circuits. Check Result What To Do Next F1 -2A Wires/connectors OK. Go to F1-2B.
  • Page 41 MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide Figure 16-21 Page 40 of 44 KM816010 (01/02)
  • Page 42: F1. Symptom: Marker Lights Will Not Turn On

    MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide F. Marker Lamp Flash Does Not Work F1. Symptom: Marker lights will not turn on F1-4. Possible cause: Bad marker lamps relay in power distribution box. Check Result What To Do Next F1 -4A Click heard.
  • Page 43 MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide Figure 16-22 Page 42 of 44 KM816010 (01/02)
  • Page 44: F2. Symptom: Marker Lights Do Not Flash On With Smartwheel Switch

    MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide F. Marker Lamp Flash Does Not Work F2. Symptom: Marker lights do not flash on with SmartWheel switch. F2-1. Possible cause: Problem in circuit R3NO. Check Result What To Do Next F2-1A Ckt has continuity.
  • Page 45 MAINTENANCE MANUAL Kenworth SmartWheel Troubleshooting Guide Page 44 of 44 KM816010 (01/02)

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