Power Distribution Module.0 For pin connector locations on the top of the main PDM, see Fig.. 7 B8 C8 D8 E8 F7 9 CC IGN ISO BT B E F C D 08//9 6 7. 6-Pin Connector. 6-Pin Connector B. 6-Pin Connector C. 6-Pin Connector D. 8-Pin Connector E 6. -Pin Connector F 7. -Pin Connector G 8. -Pin Connector H 9. 8-Pin Connector J 8 f08 B C D C D C E B E B F F Fig., Main PDM Pin Connectors (top view) For positions of individual pin-outs on the top of the main PDM, see Fig. for connectors through G (left-hand side), and Fig. for connectors H and J (right-hand side). For location of pin connectors and individual pin positions on the bottom of the PDM, see Fig.. NOTE: To locate pin-outs, use this key: The first letter indicates the connector in which the pin is located. The second letter indicates the row of the connector. The third number, if present, indicates the number of the pin in the row, if there is more than one. If there is only one pin in a row, this number is missing. Examples: Pin number F means connector, row F, pin. Pin number BC means connector B, pin C. For a list of circuit breakers and relays installed in the main and auxiliary power distribution modules, see Troubleshooting, 00. For a full schematic view of the PDM wiring, see Fig.. For a detailed (partial) view of the PDM wiring schematic, see Fig. 6 and Fig. 7. 0//96 D D C E B F D E C F B G H B E F G To identify relay terminals, first check the type of relay. On micro relays, the terminals are numbered through, corresponding to the position numbers on the schematic. On all other relays, the terminals are numbered 0 through 87, corresponding to positions through as shown in Table. Mini Relay Terminal Numbers Position Terminal Number 86 8 0 87 87 Table, Mini Relay Terminal Numbers For a diagram of the PDM power harness, see Fig. 8. B f0 Fig., Pin-Out Positions-Main PDM (left-hand side, top) Century Class Trucks Workshop Manual, Supplement, October 998 00/
.0 Power Distribution Module J D E C F B G H CC IGN ISO BT For a full diagram of the Century Class Conventional "B" block auxiliary power module wiring harness, see Fig. 9. For a detailed (partial) view of the Century Class Conventional "B" block auxiliary power module wiring harness, see Fig. 0 and Fig.. For a full schematic view of the Century Class Conventional "B" block auxiliary power module wiring, see Fig.. For a detailed (partial) view of the Century Class Conventional "B" block auxiliary power module wiring, see Fig. and Fig.. For a full schematic view of the rgosy COE "B" block auxiliary power module wiring, see Fig.. For a detailed (partial) view of the rgosy COE "B" block auxiliary power module wiring, see Fig. 6 and Fig. 7. B 0/0/9 H f0 Fig., Pin-Out Positions-Main PDM (right-hand side, top) F F7 F K L M N E8 E D8 F E D B C B D B C C8 E D C B8 B 7 /7/9. 6-Pin Connector K. 6-Pin Connector L. -Pin Connector M. 6-Pin Connector N f086 Fig., Main PDM Pin Connectors (bottom view) 00/ Century Class Trucks Workshop Manual, Supplement, October 998
BTT BUS Fig. 6 Fig. 7 IGN RELY IGNITION SWITCH CC RELY C S D B IGNITION BUS IGN POWER OPT INST CLUSTER ENG ECM OPT G IGN PWR ENG FN BCK UP LIGHT /C CLUTCH IR DRYER IGN POWER OPT 0 BRKR WIPER MIRROR CC POWER RDIO CB RDIO CC POWER OPT 0 BRKR WINDSHIELD FN SPOTLIGHT ISO BUSS OPT SW B (TO BTTERY) OPT SW DOME CIGR SLEEPER (E BOX) 60 MXIFUSE UTILITY LT (TO BTTERY) HVC 0 MXIBRKR CONT D ZN D8 IGN PWR OPT CC PWR CONT D ZN C8 DE NC E F C B B BD BE E NF F ND6 D D E8 NE8 D8 NB NB6 B CD EC ED DF DB GB EE C C6 C7 C8 NB NB F DD M B B NF7 NF K WIPER HI MICRO RELYS WIPER LO HVC HI S HVC JD BF FB JH JB JF LF J JC LD EF JG JE B C E D D D C D7 NE B NC E NB8 KD ND7 B6 CF F B7 D6 N E EG EH KE NC NC6 NC7 NC8 D NF6 F ND8 E NE7 NE6 CC CE BC G KC E6 E7 B8 KF LB LE L F D D D KB DC 7 LC C E BB MB 6 C C F6 F7 EB H HB N N NF NF MICRO RELY L.H. HDLT MICRO RELY R.H. HDLT MICRO RELY PNEL LP TRLR MRKR MICRO RELY TRCTOR TIL/MRKR TRLR TL FLSHER MICRO RELY ROD LP FUEL HTR NICRO RELY STRTER LOCKOUT L.H. HDLP (CYCLING) R.H. HDLP (CYCLING) PNEL LP TRLR MRKR 0 MXIBRKR TRCTOR TL TRLR TLR 0 MXIBRKR FLSHER 0 BRKR STOP LP BRKR HORN ROD LT 0 BRKR FUEL HTR 0 MXIBRKR DRL L.H. WDO R.H. WDO BTT PWR OPT DOOR LOCK TRLR UX 0 MXIBRKR PWR SET 0 BRKR TRLR BS 0 BRKR CLUSTER E BOX 0 MXIFUSE IGNITION CC BUS Power Distribution Module.0 0//000 Reference Diagram: D06 97 Chg.Ltr. H Each relay terminal has a position number. On micro relays, the terminal number corresponds exactly to the position number. On all other relays (mini relays, ignition-powered relays), see Table. NOTE: Starter lockout circuitry not available at this time.. Reserved for Engine Control Module (ECM) overlays. B. Do not use. C. Circuit assignments to this optional pin position must be approved by Freightliner Engineering. D. Reserved for starter lockout circuitry. E. Reserved for ignition keyswitch courtesy light feed. Fig., Main PDM Wiring Schematic (full view) f Century Class Trucks Workshop Manual, Supplement, October 998 00/
BTT BUS IGN RELY IGNITION SWITCH CC RELY C S C D B Fig. 7 WIPER HI MICRO RELYS WIPER LO IGNITION BUS IGN POWER OPT INST CLUSTER ENG ECM OPT G IGN PWR ENG FN BCK UP LIGHT /C CLUTCH IR DRYER IGN POWER OPT 0 BRKR WIPER MIRROR CC POWER RDIO CB RDIO CC POWER OPT 0 BRKR WINDSHIELD FN Fig. 7 DE JD NC E F C B B BD BE BF E NF F ND6 D FB D E8 NE8 D8 NB NB6 B CD EC JH ED JB DF JF DB GB LF J Fig. 7 E D D D C D7 NE B NC E KF NB8 KD ND7 B6 CF F B7 D6 N E EG EH KE NC NC6 NC7 NC8 D NF6 F ND8 MICRO RELY L.H. HDLT MICRO RELY R.H. HDLT MICRO RELY PNEL LP TRLR MRKR MICRO RELY TRCTOR TIL/MRKR TRLR TL FLSHER L.H. HDLP (CYCLING) R.H. HDLP (CYCLING) PNEL LP TRLR MRKR 0 MXIBRKR TRCTOR TL TRLR TLR 0 MXIBRKR FLSHER 0 BRKR STOP LP BRKR HORN CC BUS.0 Power Distribution Module 0/7/97 Reference Diagram: D06 97 Chg. Ltr. H f Each relay terminal has a position number. On micro relays, the terminal number corresponds exactly to the position number. On all other relays (mini relays, ignition-powered relays), see Table.. Reserved for Engine Control Module (ECM) overlays. Fig. 6, Main PDM Wiring Schematic (partial view) 00/ Century Class Trucks Workshop Manual, Supplement, October 998
Fig. 6 SPOTLIGHT ISO BUSS OPT SW B (TO BTTERY) OPT SW DOME CIGR SLEEPER (E BOX) 60 MXIFUSE UTILITY LT (TO BTTERY) HVC 0 MXIBRKR IGN PWR OPT CC PWR CONT D ZN C8 HVC HI S HVC Fig. 6 JC LD EE EF JG C C6 C7 C8 JE NB NB F DD M B B NF7 NF K B Fig. 6 E NE7 NE6 LB LE CC CE L BC F G KC E6 E7 B8 KB DC LC 7 BB MB 6 C C F6 F7 EB H HB N N NF NF ROD LP FUEL HTR NICRO RELY STRTER LOCKOUT ROD LT 0 BRKR FUEL HTR 0 MXIBRKR DRL L.H. WDO R.H. WDO BTT PWR OPT DOOR LOCK TRLR UX 0 MXIBRKR PWR SET 0 BRKR TRLR BS 0 BRKR CLUSTER E BOX 0 MXIFUSE IGNITION Power Distribution Module.0 CONT D ZN D8 C D D 0/7/97 Reference Diagram: D06 97 Chg. Ltr. H f Each relay terminal has a position number. On micro relays, the terminal number corresponds exactly to the position number. On all other relays (mini relays, ignition-powered relays), see Table. NOTE: Starter lockout circuitry not available at this time. B. Do not use. C. Circuit assignments to this optional pin position must be approved by Freightliner Engineering. Fig. 7, Main PDM Wiring Schematic (partial view) D E D. Reserved for starter lockout circuitry. E. Reserved for ignition keyswitch courtesy light feed. Century Class Trucks Workshop Manual, Supplement, October 998 00/
.0 Power Distribution Module 8 7 6 0/06/97. Mounting Tang Up. IGN Relay (ignition-powered). CC Relay (ignition-powered). BT Bus Ring Connector. ISO Bus Ring Connector Reference Diagram: 06 Chg. Ltr. E. IGN Bus Ring Connector 6. CC Bus Ring Connector 7. To Dash Harness 8. To Power Stud Fig. 8, Main PDM Power Harness f09a Fig. 0 Fig. GNDE GNDE R 76 76B 76C R 7C 7B 7 S GND Reference Diagram: 06 0 Chg.Ltr. B 0/06/97 f087a Fig. 9, uxiliary Power Module Wiring Harness (full view), Century Class Conventional 00/6 Century Class Trucks Workshop Manual, Supplement, October 998
Power Distribution Module.0 GNDE 76 76B 76C 6 Fig. R 7C 7B 7 S Reference Diagram: 06 0 Chg.Ltr. B GND 08/07/96 f088a. Top View of Component Mounting Surface Shown. Block B ntilock Brake System (BS), Diagnostic Connector, and, if installed, Electronic ir Suspension (ECS). Block B Sleeper Cab Electrical ccessories. Block B Sleeper Cab Heating, Ventilation, and ir Conditioning System (Sleeper HVC). To Data Logging Unit Option Harness. To Sleeper Harness 6. To BS Harness Fig. 0, uxiliary Power Module Wiring Harness (partial view), Century Class Conventional Century Class Trucks Workshop Manual, Supplement, October 998 00/7
.0 Power Distribution Module GNDE R Fig. 0 0/06/97. To ECS Harness (optional). To Custom Harness (optional) Reference Diagram: 06 0 Chg.Ltr. B f089a. From Cab Harness. To Diagnostic Connector Harness Fig., uxiliary Power Module Wiring Harness (partial view), Century Class Conventional 00/8 Century Class Trucks Workshop Manual, Supplement, October 998
Power Distribution Module.0 Fig. Fig. 9B 8B Reference Diagram D06 06 Chg Ltr. 0/06/97 f09a Fig., uxiliary Power Module Wiring Schematic (full view), Century Class Conventional Century Class Trucks Workshop Manual, Supplement, October 998 00/9
.0 Power Distribution Module Fig. Fig. Fig. 07//98 Reference Diagram D06 06 Chg.Ltr. Fig., uxiliary Power Module Wiring Schematic (partial view), Century Class Conventional f09a 00/0 Century Class Trucks Workshop Manual, Supplement, October 998
Power Distribution Module.0 9 Fig. 9B 8B Fig. Fig. 07//98 Reference Diagram D06 06 Chg. Ltr. Fig., uxiliary Power Module Wiring Schematic (partial view), Century Class Conventional f096a Century Class Trucks Workshop Manual, Supplement, October 998 00/
.0 Power Distribution Module Fig. 6 Fig. 7 6 Ref. Diag. D06 770 Chg. Ltr. 06//98. Connector P6. Connector P. Connector P. Connector P. Connector P 6. Connector P f60 Fig., uxiliary Power Module Wiring Schematic (full view), rgosy COE 00/ Century Class Trucks Workshop Manual, Supplement, October 998
Power Distribution Module.0 Fig. 7 Ref. Diag. D06 770 Chg. Ltr. 06//98. Connector P6. Connector P. Connector P. Connector P Fig. 6, uxiliary Power Module Wiring Schematic (partial view), rgosy COE f60 Century Class Trucks Workshop Manual, Supplement, October 998 00/
.0 Power Distribution Module Fig. 6 6 06//98. Connector P 6. Connector P Ref. Diag. D06 770 Chg. Ltr. f60 Fig. 7, uxiliary Power Module Wiring Schematic (partial view), rgosy COE 00/ Century Class Trucks Workshop Manual, Supplement, October 998