133
Sensor Adjustment and Component Testing
4. If the ABS lamp does not go out, there is a sensor gap problem or hardware fault. Adjust the sensor
and, if necessary, perform a fault code check.
8.6 Inspect the Sensor and Air Line Installation (2S/2M Standard)
8.6.1 Sensor Installation
1. Look at the C and D sensor connectors on the ECU/dual modulator valve assembly. Make sure the
connectors are routed to the correct wheel end location, as follows:
If the ECU/dual modulator valve assembly is mounted with the control port facing the front of the
trailer:
•
Sensor D must be routed to the curbside wheel end location
•
Sensor C must be routed to the roadside wheel end location
If the ECU/dual modulator valve assembly is mounted with control port facing the rear of the trailer:
•
Sensor D must be routed to the roadside wheel end location
•
Sensor C must be routed to the curbside wheel end location
2. If sensors are not correctly installed, make the necessary repairs.
8.6.2 Air Line Installation
1. Ensure that all unused air ports are plugged and that the exhaust port is facing DOWN.
2. Look at the air line installation to verify that all air lines are correctly installed.
If the ECU/dual modulator valve assembly is mounted with the control port facing the FRONT of
the trailer, the air lines for the three delivery ports labeled 2.1 must be routed to CURBSIDE; the
air lines for the three delivery ports labeled 2.2 on the opposite side of the valve must be routed to
ROADSIDE. Figure 8.13.
If the ECU/dual modulator valve assembly is mounted with the control port facing the REAR of the
trailer, the air lines for the three delivery ports labeled 2.1 must be routed to ROADSIDE; the air
lines for the three delivery ports labeled 2.2 on the opposite side of the valve must be routed to
CURBSIDE. Figure 8.14.
Fig. 8.13
4014007a
CONTROL
PORT
DELIVERY PORTS 2.2
DELIVERY
PORTS 2.1
Содержание 400 500 320 0
Страница 148: ...148 Troubleshooting Fig 9 9 4017182a...
Страница 149: ...149 Troubleshooting Fig 9 10 4017180a...
Страница 150: ...150 Troubleshooting Fig 9 11 4017173a...
Страница 156: ...156 Troubleshooting Fig 9 15 4017183a...
Страница 157: ...157 Troubleshooting Fig 9 16 4017187a Fig 9 17 4012475b 3 2 SOLENOID VALVE CABLE P N 472 170 997 0 1 2...
Страница 174: ...174 Troubleshooting Fig 9 35 4017186a...
Страница 187: ...187 Notes Notes...