ABS (ESP®) Hydraulic Unit / Control Module Assembly Power and Ground Circuit Check: Troubleshooting
DIAGNOSIS PROCEDURE
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Check fuse Are main fuses and circuit fuses for ABS (ESP®) in good condition? |
Go to Step 2. | Replace fuse and check for short circuit to ground. |
| 2 | Check ABS (ESP®) control module power supply circuit
Is it 10 - 14 V? |
Go to Step 3. | "GRN/ORN" circuit open. |
| 3 | Pump motor and solenoid valve power supply circuit
Are they 10 - 14 V? |
Go to Step 4. | "WHT/BLU" and/or "WHT/RED" circuit open. |
| 4 | Check ABS (ESP®) hydraulic unit / control module assembly ground circuit
Is resistance less than 2 Ω? |
ABS (ESP®) hydraulic unit / control module assembly power and ground circuits are in good condition. | "BLK" circuit open or high resistance. |