C1057

DTC C1057: ABS (ESP(R)) Control Module Power Supply Circuit Failure

Wiring Diagram










DTC Detecting Condition

The ABS (ESP(R)) control module monitors the power source voltage at terminal "E03-14" (or "E53-1"). When the power source voltage becomes extremely high or low while vehicle is running at more than 20 km/h (13 MPH), this DTC will be set. As soon as the power source voltage becomes normal, the ABS warning light will be turned off and the ABS (ESP(R)) control module will return to normal operation, but the set DTC will be remain.

DTC Troubleshooting

1.
Was "ABS Check" performed?
YES -
Go to Step 2.
NO -
Go to ABS Check ABS Check.

2. Connect SUZUKI scan tool to data link connector (DLC) with ignition switch OFF.
Start engine and select menu "DATA LIST" mode of SUZUKI scan tool.
Check "Battery Voltage" under "DATA LIST" of SUZUKI scan tool.

Is voltage about 10 - 17 V?
YES -
Substitute a known-good ABS (ESP(R)) hydraulic unit / control module assembly and recheck.
NO -
Go to Step 3.

3. Check charging system referring to Testing and Inspection Generator Test.

Are they in good condition?
YES -
Go to Step 4.
NO -
Repair or replace generator.

4. Disconnect ABS (ESP(R)) hydraulic unit / control module connector with ignition switch turned OFF.
Check for proper connection to ABS (ESP(R)) control module connector at terminals "E03-14", "E03-13" and "E03-26" (or "E53-1", "E53-16" and "E53-47").
If OK, then measure voltage between terminals "E03-14" and "E03-13", "E03-26" (or "E53-1" and "E53-16", "E53-47").

Are voltage about 10 V or more?
YES -
Poor connection of "E03-14", "E03-13" and/or "E03-26" (or "E53-1", "E53-16" and/or "E53-47") terminals. If the terminals are in good condition, substitute a known-good ABS (ESP(R)) hydraulic unit / control module and recheck.
NO -
Go to Step 5

5. Measure resistance between each terminal of "E03-13", "E03- 26" (or "E53-16", "E53-47") and vehicle body ground.

Is resistance less than 1 ohms?
YES -
"WHT/RED" wire circuit in high resistance.
NO -
"BLK" wire circuit in open or high resistance.