BENDIX MC-12 MODULATOR CONTROLLER ASSY Informações Técnicas Página 26
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Location Measurement
TCV to TCV Common 7 to 19 Ohms
Release, Hold, Common Open Circuit (no continuity)
to Voltage or Ground
Troubleshooting Diagnostic Trouble Codes:
Traction Control Valves
18 Drive Axle Traction Control Valve
19 Steer Axle Traction Control Valve
1st. Blink
Code
Location
2nd. Diagnostic
Blink Trouble Code
Code Description
1 TCV Solenoid
Shorted to
Ground
2 TCV Solenoid
Shorted to
Voltage
3 TCV Solenoid
Open Circuit
4 TCV
Configuration
Error
Verify 7 to 19 ohms between TCV and TCV common. Verify no continuity between
TCV leads and ground. Check for corroded/damaged wiring or connectors between
ECU and TCV.
Verify 7 to 19 ohms between TCV and TCV common. Verify no continuity between
TCV leads and voltage. Check for corroded/damaged wiring or connectors between
ECU and TCV.
Verify 7 to 19 ohms between TCV and TCV common. Check for corroded/damaged
wiring or connectors between ECU and TCV.
The ECU is not configured for ESP or ATC, but has detected the presence of a TCV.
Verify TCV wiring. Inspect for the presence of a TCV. Verify ECU configuration.
Repair Information
Cab-mount ECU:
Looking into wire harness connector
Traction Control Valve Repair Tests:
1. Take all measurements at ECU harness connector pins in order to check wire harness
and traction control valve. Probe the connector carefully so that the terminals are not
damaged.
Connector Pin Traction Control Test
X1 4 Drive Axle Traction Control Valve Common
18 Way 5 Drive Axle Traction Control Valve
Connector Pin Traction Control Test
X3 3 Steer Axle Traction Control Valve Common
15 Way 5 Steer Axle Traction Control Valve
X 4
- SD-13-4869 1
- YAW CONTROL (YC) 2
- ROLL STABILITY PROGRAM (RSP) 2
- COMPONENTS 2
- ECU MOUNTING 3
- HARDWARE CONFIGURATION 3
- ADVANCED EC-60 3
- CONTROLLERS USE 3
- POWER LINE CARRIER (PLC) 3
- CONTROLLER INPUTS 4
- CONTROLLER OUTPUTS 5
- ABS System 6
- Status Indicators 6
- ATC/ESP System 6
- Status Indicator 6
- ABS OPERATION 7
- ATC OPERATION 8
- ADVANCED ABS WITH STABILITY 9
- CONTROL 9
- THE BENDIX 10
- STABILITY SYSTEM 10
- SYSTEM IMPACT DURING ACTIVE 12
- TROUBLE CODES 12
- ABS PARTIAL SHUTDOWN 12
- SYSTEM CONFIGURATION 12
- ECU RECONFIGURATION 12
- Troubleshooting: General 13
- ACCELERATION SENSOR 14
- PRESSURE SENSOR INSTALLATION 15
- REQUIREMENTS 15
- BLINK CODES 16
- ECU DIAGNOSTICS 16
- DIAGNOSTIC MODES 17
- Dynamometer Test Mode 18
- Reconfigure ECU Mode 18
- PC-Based Diagnostic Tools 19
- Nexiq Bendix Application Card 20
- Diagnostics V4.0 Software 20
- Wheel Speed Sensors 22
- Cab-mount ECU: Looking into 23
- Speed Sensor Repair Tests: 23
- Pressure Modulator Valves 24
- Traction Control Valves 26
- Power Supply Tests: 27
- J1939 Serial Communications 28
- 2nd. Diagnostic 29
- 1st. Blink 30
- Location 30
- (continued) 31
- Steering Angle Sensor (SAS-60 32
- sensor) 32
- sensor) (continued) 33
- Yaw Rate Sensor (YRS) 34
- Brake Demand/Load Sensors 37
- CONNECTOR 38
- Troubleshooting: Wiring 39
- (Continued) 41
- ADDITIONAL AXLE 42
- Glossary 43
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