Troubleshooting Diagnostic Trouble Codes:
1st. Blink
Code
Traction Control Valves
Location
18 Traction Control Valve
2nd. | Diagnostic |
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Blink | Trouble Code | Repair Information |
Code | Description | |
1 | TCV Solenoid | Verify 7 to 19 ohms between TCV and TCV common. Verify no continuity between |
| Shorted to | TCV leads and ground. Check for corroded/damaged wiring or connectors |
| Ground | between ECU and TCV. |
2 | TCV Solenoid | Verify 7 to 19 ohms between TCV and TCV common. Verify no continuity between |
| Shorted to | TCV leads and voltage. Check for corroded/damaged wiring or connectors |
| Voltage | between ECU and TCV. |
3 | TCV Solenoid | Verify 7 to 19 ohms between TCV and TCV common. Check for corroded/ |
| Open Circuit | damaged wiring or connectors between ECU and TCV. |
4 | TCV | The ECU is not configured for ATC, but has detected the presence of a TCV. |
| Configuration | Verify TCV wiring. Inspect for the presence of a TCV. Verify ECU configuration. |
| Error |
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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:
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| Location | Measurement |
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| TCV to TCV Common | 7 to 19 Ohms |
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| Release, Hold, Common | Open Circuit (no continuity) |
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| to Voltage or Ground |
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| Looking into wire harness connector |
| Looking into wire harness connector | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Connector | Pin | Traction Control Test |
X1 | 4 | Traction Control Valve Common |
18 Way | 5 | Traction Control Valve |
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Connector | Pin | Traction Control Test |
X3 | 7 | Traction Control Valve |
18 Way | 13 | Traction Control Valve Common |
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