Bendix Commercial Vehicle Systems TABS-6 TRAILER ABS MODULE - Manual (Page 25)

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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 infl ation & correct
number of exciter ring teeth. Verify that the ECU
has the proper tire size settings.
6 Sensor confi guration error • Verify correct ABS confi guration. If needed, reset to
the default ABS confi guration and power-up to
initiate auto-confi 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 confi guration error • Verify correct ABS confi guration. If needed, reset to
the default ABS confi guration and power-up to
initiate auto-confi 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 confi guration error • Verify correct ABS confi guration. If needed, reset to
the default ABS confi guration and power-up to
initiate auto-confi 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