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MAINTENANCE MANUAL

Kenworth T2000 SmartWheel Troubleshooting Guide

(01/02)

KM816012 Page 1 of 39

16

16Kenworth T2000 SmartWheel Trouble-

shooting Guide KM816012 01/02

16

Related Documents 

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Service Manuals

Kenworth T2000 SmartWheel Troubleshooting Guide,
KM816012

TIBs

15-16A 

T2000 Multiplex Steering Wheel Operation

15-17 

SmartWheel / Multiplex Steering Wheel Controls

99-8

SmartWheel Diagnostic Tester

Wiring Diagrams

SmartWheel Multiplex Switch Module K301-415 01

Headlamps w/Multiplex (SmartWheel) Steering Wheel
P94-1191 01

Horn Multiplex Steering Wheel R115-5453 01

Headlamps w/ Multiplex R115-5450 01

Headlamps w/ MUX Wheel P94-1335 01

Clearance & ID Lamps w/ Multiplex (SmartWheel)
P94-1197 01

Clearance & ID Lamps, T800A Cabs w/Multiplex Steering
Wheel R115-5452 01

Clearance & ID Lamps, BII Cabs w/Multiplex Steering
Wheel R115-5451 01

Headlamps, w/ MUX Wheel P94-1380 01

Multiplex W/94 CAT R115-5456 A 01

Cummins Plus, MUX, Smartwheel R115-6017 01

T2000 DDEC III Engine Wiring P94-1009 A 01

DDEC III W/Multiplex R115-5457 A 01

Summary of Contents for KENWORTH T2000

Page 1: ...Possible cause Bad horn relay in CEP 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 En...

Page 2: ...plex Erase the word multiplex and try the search again with the word mpx Service Manuals Kenworth T2000 SmartWheel Troubleshooting Guide KM816012 TIBs 15 16A T2000 Multiplex Steering Wheel Operation 1...

Page 3: ...Page 2 of 39 KM816012 01 02 MAINTENANCE MANUAL Kenworth T2000 SmartWheel Troubleshooting Guide 16 Wiring For Conventional and COE Electrical Diagrams R115s see the Modular Wiring Diagrams Figure 16 1...

Page 4: ...use this Troubleshooting Guide Check the multiplex wheel for proper operation according to the Kenworth Multiplex Steering Wheel Operating Manual If none of the functions on the steering wheel work o...

Page 5: ...Page 4 of 39 KM816012 01 02 MAINTENANCE MANUAL Kenworth T2000 SmartWheel Troubleshooting Guide 16 Figure 16 3 BATT Circuit Breaker For SmartWheel Multiplex Steering Wheel Central Electrical Panel...

Page 6: ...nector pins to make sure they are not corroded bent or unseated Connector pins OK Connector pins bad Go to A1 4 Repair or replace connector pins If problem is corrosion eliminate source of moisture A1...

Page 7: ...Page 6 of 39 KM816012 01 02 MAINTENANCE MANUAL Kenworth T2000 SmartWheel Troubleshooting Guide 16 Figure 16 4...

Page 8: ...steering col umn and from 2 way connector to 6 way connector pins 1 and 2 at mul tiplex module Also check polarity of circuits If reversed no functions will work and module may be damaged Each circui...

Page 9: ...Page 8 of 39 KM816012 01 02 MAINTENANCE MANUAL Kenworth T2000 SmartWheel Troubleshooting Guide 16 Figure 16 5...

Page 10: ...e very thin brass is dry in places Apply contact ring grease available from DSM according to prescribed method Use only this type of grease Check Result What To Do Next A3 1 Connect the multiplex stee...

Page 11: ...Page 10 of 39 KM816012 01 02 MAINTENANCE MANUAL Kenworth T2000 SmartWheel Troubleshooting Guide 16 Figure 16 6 Horn Central Electrical Panel...

Page 12: ...lace circuit breaker or fuse If horn still does not work go to B1 2 B1 2 Horn wiring connections leading to horn ckt C53HN Use multiplex steering wheel horn wiring diagram P94 1120 Wires OK connectors...

Page 13: ...Page 12 of 39 KM816012 01 02 MAINTENANCE MANUAL Kenworth T2000 SmartWheel Troubleshooting Guide 16 Figure 16 7...

Page 14: ...rom pin 1 of the con nector to terminal marked S at horn relay position in CEP Ckt has continuity No continuity Go to B4 There is a break in the circuit between the module and the CEP Trace ckt R11HN...

Page 15: ...Page 14 of 39 KM816012 01 02 MAINTENANCE MANUAL Kenworth T2000 SmartWheel Troubleshooting Guide 16 Figure 16 8 Central Electrical Panel...

Page 16: ...en connector pin 12 and a cab ground Voltmeter reads battery voltage No voltage Go to C1 1 B Go to C1 2 Go to C1 1B C1 1B Check MPX ACC See CEP on pre vious page Circuit breaker fuse OK An open circui...

Page 17: ...Page 16 of 39 KM816012 01 02 MAINTENANCE MANUAL Kenworth T2000 SmartWheel Troubleshooting Guide 16 Figure 16 9 Central Electrical Panel MPX IGN...

Page 18: ...plug 6 way connector from elec tronics module Check voltage between connector pins 4 and 3 with ignition on Voltmeter reads battery voltage Go to C2 2 No voltage Go to C2 1C C2 1 C Check circuit break...

Page 19: ...Page 18 of 39 KM816012 01 02 MAINTENANCE MANUAL Kenworth T2000 SmartWheel Troubleshooting Guide 16 Figure 16 10 Central Electrical Panel...

Page 20: ...ics module Check voltage between connector pins 4 and 3 with ignition on Voltmeter reads battery voltage Go to A3 No voltage Go to D1 1C D1 1 C Check circuit breaker or fuse in MPX IGN position in CEP...

Page 21: ...Page 20 of 39 KM816012 01 02 MAINTENANCE MANUAL Kenworth T2000 SmartWheel Troubleshooting Guide 16 Figure 16 11...

Page 22: ...ctors again No continuity after On button is pushed Problem could be in electronics module or steering wheel hub Go to A3 Check Result What To Do Next D2 1A Check cruise set circuit between pin 3 of 1...

Page 23: ...Page 22 of 39 KM816012 01 02 MAINTENANCE MANUAL Kenworth T2000 SmartWheel Troubleshooting Guide 16 Figure 16 12...

Page 24: ...9 Cummins Ckt 523 Wiring connectors OK all circuits have continuity Go to D3 2 Wire broken connector unplugged loose or corroded Repair or replace wires and or con nectors Check Result What To Do Next...

Page 25: ...Page 24 of 39 KM816012 01 02 MAINTENANCE MANUAL Kenworth T2000 SmartWheel Troubleshooting Guide 16 Figure 16 13 Central Electrical Panel Head Lps...

Page 26: ...use in cab power distribution box HEAD LPS Circuit breaker or fuse OK Go to E1 1B No continuity Determine cause for fuse to blow shorted wire etc Replace circuit breaker or fuse If headlamps still do...

Page 27: ...Page 26 of 39 KM816012 01 02 MAINTENANCE MANUAL Kenworth T2000 SmartWheel Troubleshooting Guide 16 Figure 16 14...

Page 28: ...rs OK Go to E1 2B Wires frayed broken connectors loose or unplugged Repair replace wires or connectors E1 2B Continuity of ckt R5HLNC from dash switch to electronics module 8 way connector pin 6 and c...

Page 29: ...Page 28 of 39 KM816012 01 02 MAINTENANCE MANUAL Kenworth T2000 SmartWheel Troubleshooting Guide 16 Figure 16 15 Central Electrical Panel Headlamp Relay...

Page 30: ...r relay click in CEP Click heard Remove headlamp relay Use jumper wire from terminal marked to terminal directly across from it not S terminal common to nor mally open Headlights should come on If hea...

Page 31: ...Page 30 of 39 KM816012 01 02 MAINTENANCE MANUAL Kenworth T2000 SmartWheel Troubleshooting Guide 16 Figure 16 16...

Page 32: ...adlights will not blink off completely with the Smart Wheel They will change to their daytime mode when the headlamp flash button is pressed Check Result What To Do Next E2 1A Unplug the 8 way connect...

Page 33: ...Page 32 of 39 KM816012 01 02 MAINTENANCE MANUAL Kenworth T2000 SmartWheel Troubleshooting Guide 16 Figure 16 17 Marker Lamps Central Electrical Panel...

Page 34: ...arker lamp circuit breaker or fuse in CEP MKR LPS Circuit breaker or fuse OK Go to F1 1B No continuity Determine cause for fuse to blow shorted wire etc Replace circuit breaker or fuse If marker lamps...

Page 35: ...Page 34 of 39 KM816012 01 02 MAINTENANCE MANUAL Kenworth T2000 SmartWheel Troubleshooting Guide 16 Figure 16 18...

Page 36: ...s connectors OK Go to F1 2B Wires frayed broken connectors loose or unplugged Repair replace wires or connectors F1 2B Continuity of ckt R3MLNC from dash switch to electronics module 8 way connector p...

Page 37: ...Page 36 of 39 KM816012 01 02 MAINTENANCE MANUAL Kenworth T2000 SmartWheel Troubleshooting Guide 16 Figure 16 19 Marker Lamp Central Electrical Panel...

Page 38: ...eard Remove marker lamp relay Use jumper wire from terminal marked to terminal directly across from it not S terminal common to nor mally open Marker lights should come on If marker lights work replac...

Page 39: ...Page 38 of 39 KM816012 01 02 MAINTENANCE MANUAL Kenworth T2000 SmartWheel Troubleshooting Guide 16 Figure 16 20...

Page 40: ...ible cause Problem with multiplex control system Check Result What To Do Next F2 1A Unplug the 8 way connector from the electronics module Check continuity of ckt R3MLNO from pin 2 of the connector to...

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