Troubleshooting: Standard Frame Wiring Schematic (4S/4M)
J1587 B | J1587 A | J1939 LO | J1939 HI | BATTERY | RETARDER | GROUND | IGNITION | TRAILER ABS WL | ABS WL | NOT USED | WSS SL+ | WSS SL- | WSS SR+ | WSS SR- | PMV SL HLD PMV SL CMN | PMV SL REL | PMV SR HLD | PMV SR CMN PMV SR REL | PMV DL HLD PMV DL CMN PMV DL REL | PMV DR HLD PMV DR CMN PMV DR REL | WSS DL+ | WSS DL- | WSS DR+ | WSS DR- | NOT USED | NOT USED |
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| X1 |
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| X2 |
1 | 5 | 2 | 6 | 14 | 10 | 15 | 9 | 11 | 12 | 13 | 3 | 7 | 4 | 8 | 7 13 | 8 | 9 14 10 | 11 15 12 | 17 16 18 | 1 | 2 | 3 | 4 | 5 | 6 | |
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| X1 |
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| X2 |
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| 30A |
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| 5A |
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| * 3 2 1 | * 3 2 1 | * 3 2 1 | * 3 2 1 |
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| WSS | WSS |
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| WSS | WSS |
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| DRIVE |
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| STEER | STEER |
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| DRIVE |
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| AXLE |
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| AXLE | AXLE |
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| AXLE |
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| STEER |
| STEER | DRIVE | DRIVE | LEFT |
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| LEFT | RIGHT |
| RIGHT |
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| AXLE |
| AXLE | AXLE | AXLE |
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| LEFT |
| RIGHT | LEFT | RIGHT |
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| PMV |
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| PMV | PMV | PMV |
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| STEER AXLE |
| DRIVE AXLE |
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| (OPTIONAL) |
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| RETARDER |
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| RELAY |
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| TRAILER ABS |
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| ABS WL RELAY |
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| ABS INDICATOR LAMP |
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| INDICATOR LAMP |
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| 5A |
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| 5A |
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| +12V IGNITION |
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| * Pressure Modulator Valves |
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| Connector |
| Packard |
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| Common (CMN) | Pin 2 |
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| Pin B |
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| Hold (HLD) |
| Pin 3 |
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| Pin C |
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| Release (REL) | Pin 1 |
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| Pin A |
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+12V BATTERY
FIGURE 19 - STANDARD FRAME WIRING SCHEMATIC (4S/4M)
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