BENDIX MC-30 TRAILER ABS CONTROLLER Informacje Techniczne Pobierz pdf (Strona 22)

Troubleshooting Diagnostic Trouble Codes:

Traction Control Valves

18 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

Conﬁ guration

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 conﬁ gured for ATC, but has detected the presence of a TCV. Verify

TCV wiring. Inspect for the presence of a TCV. Verify ECU conﬁ guration.

Repair Information

Cab-mount ECU:

Looking into wire harness connector

Frame-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.

2. Tractor Control Valve resistance measurements should read:

Location Measurement

TCV to TCV Common 7 to 19 Ohms

Release, Hold, Common Open Circuit (no continuity)

to Voltage or Ground

Connector Pin Traction Control Test

X1 4 Traction Control Valve Common

18 Way 5 Traction Control Valve

Connector Pin Traction Control Test

X3 7 Traction Control Valve

18 Way 13 Traction Control Valve Common

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 43 44

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