User's Manual

25
SECTION C: DIAGNOSTIC TROUBLE CODE (DTC)
BLINK CODE QUICK REFERENCE
To Read/Clear Diagnostic Troubleshooting Codes (DTCs):
1. Apply constant power to the trailer (ignition switch).
2. Within 15 seconds, apply/release the brake pedal at 1 second intervals:
(a) 3 times for displaying Active DTCs.
(b) 4 times for displaying Inactive DTCs.
(c) 5 times for clearing Active DTCs.
3. After 5 seconds delay, the blink codes will be displayed.
4. Observe the trailer-mounted ABS indicator lamp and record blink code(s).
5. Refer to blink code chart for description.
6. After making repairs and clearing Active DTCs, verify lamp is no longer illuminated.
1st Blink Code 2nd Blink Code
Code Location Code Description Repair Information
1 All 1 No Diagnostic Trouble Codes • System fully operational ‑ no faults detected
2 Sensor SL 1 Sensor signal valid ‑ large air gap • Go to Section G ‑ Dynamic WSS DTCs
3 Sensor SR 2 Sensor signal valid ‑ loss of signal • Go to Section G ‑ Dynamic WSS DTCs
4 Sensor SAL 3 Sensor signal valid ‑ noisy • Go to Section G ‑ Dynamic WSS DTCs
5 Sensor SAR 4 Sensor shorted or open • Go to Section G ‑ Static WSS DTCs
   5 Tirediameteroutofrange •Verifycorrecttiresize,propertireination&correct
number of exciter ring teeth. Verify that the ECU
has the proper tire size settings.
   6 Sensorcongurationerror •VerifycorrectABSconguration.Ifneeded,resetto
     thedefaultABScongurationandpower-upto
     initiateauto-conguration.
 6 Power 1 Over-voltage •GotoSectionF-PowerSupply
   2 Low-voltage •GotoSectionF-PowerSupply
   3 Excessivepowerlineresistance •GotoSectionF-PowerSupply
 7 ValveMOD1 1 Holdsolenoid(AUX)shortedoropen •GotoSectionH-ABSModulatorDTCs
 8 ValveMOD2 2 Releasesolenoid(AUX)shortedoropen •GotoSectionH-ABSModulatorDTCs
 9 ValveMOD3 3 ABSmodulatordynamicerror •GotoSectionH-ABSModulatorDTCs
   4 Valvecongurationerror •VerifycorrectABSconguration.Ifneeded,resetto
     thedefaultABScongurationandpower-upto
     initiateauto-conguration.
 10 Common 1 ValveMOD1/2low-sideswitchshortedtoground •GotoSectionH-ABSModulatorDTCs
   2 ValveMOD3(AUX)low-sideswitchshortedtoground •GotoSectionH-ABSModulatorDTCs
   3 ABSmodulatordynamicerror-allvalves •GotoSectionH-ABSModulatorDTCs
4 Excessive ABS activity • Go to Section G ‑ Dynamic WSS DTCs
11 ECU 1 ECU internal error • Check for damaged or corroded connectors. Check
     fordamagedwiring.Afterrepairsorifnoissues
     found,thenclearfaults.Iffaultsreturn,replacethe
module.
   2 ECUcongurationerror •VerifycorrectABSconguration.Ifneeded,resetto
     thedefaultABScongurationandpower-upto
     initiateauto-conguration.
 12 Diagnostics 1 J1587diagnostics(AUX6)shortedoropen •Checkforcorroded/damagedwiringorconnectors
     betweentheECUandJ1587Diagnostic(AUX6).
     Replace/repairJ1587Diagnostic(AUX6)wiringor
components as required.
 13 IndicatorLamp 1 ABSlamp(AUX7)shortedoropen •GotoSectionE-TrailerABSIndicatorLamp