User manual BENDIX GEN 4 GEN 5 ABS

[. . . ] ® Bendix® Gen 4TM and Gen 5TM ABS for Trucks, Tractors, and Buses Cab-Mounted Models Frame-Mounted Model FIGURE 1 - Bendix® ABS Controller Assemblies GEN 4TM AND GEN 5TM ABS INTRODUCTION This manual describes both the cab mount and the frame mount versions of the Bendix® Gen 4TM and Gen 5TM Antilock Brake System/Automatic Traction Control (ABS/ATC) systems. Both cab and frame mount versions are designed for: · · · · · · · · · · Tractors Trucks Buses and Motor Coaches and RVs. ABS/ATC Operation System Components Service Procedures Diagnosis and Troubleshooting Procedures. Table of Contents ABS Operation . 25 The 17·12 Sensor Memory Diagnostic Trouble Code 26 Wheel End Speed Sensor Repair . [. . . ] (continued). Right Rear Sensor. Left Steer Axle PMV. IAD Circuit. Right Steer Axle PMV. 22 Blink Codes 1st. 10 10 10 10 10 10 10 10 10 or 11 10 or 11 10 or 11 11 11 11 11 11 11 11 11 12 12 12 12 12 12 12 12 13 13 13 13 13 13 13 13 2nd. 1 2 3 4 5 6 7 8 9 10 MID 136 SID/FMI 009/003 009/004 009/005 009/005 009/003 009/004 009/005 009/002 014/003 014/003 Description Location Short circuit from the release solenoid to voltage. Short circuit from the release solenoid to voltage Short circuit from the release solenoid to ground. System configuration is incorrect. Left Rear Axle PMV. Left Rear Axle PMV (cont. ). PMV Commons. Fault Codes 11 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 014/004 010/003 010/004 010/005 010/005 010/003 010/004 010/005 010/002 011/003 011/004 011/005 011/005 011/003 011/004 011/005 011/002 012/003 012/004 012/005 012/005 012/003 012/004 012/005 012/002 Right Rear Axle PMV. Left Rear Axle PMV. Right Rear Axle PMV. 23 Blink Codes 1st. 14 14 14 14 14 15 15 15 15 15 15 15 15 15 15 15 16 16 16 16 16 16 16 17 17 17 17 17 17 17 17 17 17 2nd. 5 6 7 8 12 1 2 3 4 5 6 7 8 9 10 11 1 or 5 2 or 6 3 or 7 4 or 8 9 10 11 1 2 3 4 5 6 7 8 10 12 MID 136 SID/FMI Description Location 018/003 018/004 018/005 018/002 249/002 or 231/002 254/012 253/012 253/013 253/012 254/002 254/002 254/002 253/013 231/012 254/012 254/012 251/004 251/003 251/005 251/005 251/004 251/003 251/002 013/003 013/004 249/002 or 231/002 249/002 or 231/002 253/013 253/013 -- -- 023/014 151/014 Solenoid in ATC valve shorted high. Sensor memory bit set, (A sensor trouble code has occurred, the ECU must read wheel speeds on all wheels to clear this trouble code. ) ATC Valve. Data Link. ECU. ECU (cont. ). Power Circuits. 24 Speed Sensor Troubleshooting Follow the steps listed below to locate and correct sensor related ABS trouble codes. Access active trouble code(s) using either the Blink Code procedure, with ServiceRanger or the Hand-held Tester procedure. Lookup the code description, the possible causes and the repair procedures provided in this section. After the repairs are completed, clear all codes and check for any additional codes. If a sensor related trouble code has occurred, a code 17·12 will remain in the system until the vehicle has been driven. TOP - Looking into harness connector 10 7 11 8 4 5 6 1 2 3 13 10 7 14 11 8 4 5 6 1 2 3 7 8 9 4 5 6 1 2 3 4 5 6 1 2 3 16 13 10 7 17 14 11 18 15 8 4 5 6 1 2 3 Fault Codes FIGURE 23 - Typical Wheel Speed Sensor Circuit 12 9 15 12 9 12 9 7 8 9 10 11 12 6 5 4 3 2 1 7 8 9 10 11 12 6 5 4 3 2 1 7 8 9 10 11 12 6 5 4 3 2 1 7 8 9 10 11 12 6 5 4 3 2 1 E D C B A X1 Grey X2 Black X3 Green X4 Brown Harness Connector B (6-Way) PIN 4 5 Circuit Description Speed Sensor (+) Left Steer Speed Sensor (-) Left Steer Speed Sensor (+) Right Steer Speed Sensor (-) Right Steer Speed Sensor (+) Left Rear Speed Sensor (-) Left Rear Speed Sensor (+) Right Rear Speed Sensor (-) Right Rear Speed Sensor (+) Left Rear Rear* Speed Sensor (-) Left Rear Rear* Speed Sensor (+) Right Rear Rear* Speed Sensor (-) Right Rear Rear* Harness Connector X2 (Black) PIN 5 6 7 8 Circuit Description Speed Sensor (-) Right Steer Speed Sensor (+) Right Steer Speed Sensor (-) Left Steer Speed Sensor (+) Left Steer Speed Sensor (-) Left Rear Speed Sensor (+) Left Rear Speed Sensor (-) Right Rear Speed Sensor (+) Right Rear Speed Sensor (-) Left Rear Rear* Speed Sensor (+) Left Rear Rear* Speed Sensor (-) Right Rear Rear* Speed Sensor (+) Right Rear Rear* C (9-Way) 4 5 D (15-Way) 5 6 8 9 X3 (Green) 1 2 3 4 E (12-Way) 6-channel Only 5 6 8 9 X4 (Brown) 6-channel Only 3 4 5 6 *Not Used On Basic System Speed Sensor Resistance Test *Not Used On Basic System The correct resistance for the speed sensor circuit is between 1550 ohms and 2500 ohms. Measure resistance at the appropriate ECU harness connector pins to check the cable and speed sensor. Note: Refer to the chart for pin identification. FIGURE 24 - Wheel Speed Sensor Harness Circuit Descriptions and Resistance Test 25 The 17·12 Sensor Memory Diagnostic Trouble Code The ABS indicator lamp indication and 17·12 diagnostic trouble code are provided to remind the service technician of the need to verify the performance of the ABS wheel speed sensors by driving the vehicle after servicing the sensors. ABS wheel speed sensors do not generate signals unless the wheels are turning. Because of this, certain sensor codes can only be detected when the vehicle is in motion. The trouble code 17·12 is generated after the initial sensor codes are cleared. The trouble codes must be rechecked after clearing the sensor codes in order to see 17·12 reported. A 17·12 trouble code and ABS indicator lamp signal for sensor code cannot be cleared using a ProLink, ServiceRanger software or the diagnostic button. The ABS ECU will clear the 17·12 blink code and turn off the ABS indicator lamp when all active sensor code issues are resolved and the vehicle is driven above 5 mph. The ABS ECU must detect speeds at all monitored wheels for the condition to clear. [. . . ] When the indicator lamp is on, ABS is disabled and the vehicle reverts to normal brake operation. A control method in which a wheel is controlled at optimum slip, a point where retardation and stability are maximized. The brake pressure that is best for the wheel in question is directed individually into each brake chamber. J1708 -- An SAE standard which defines the hardware and software protocol for implementing 9600 baud heavy vehicle data links. [. . . ]