Pinpoint Test N: DTCs U3003:17

Anti-Lock Control

Pinpoint Test N: DTCs U3003:17

Normal Operation

The operating voltage required to supply the ABS module, hydraulic pump and isolation valves is in a range between 10 and 17 volts.

- DTC U3003:17 (Battery Voltage: Circuit Voltage Above Threshold)- this DTC sets if the voltage supplied to the ABS module is above 17 volts during the ABS module self-test or normal operation.

This pinpoint test is intended to diagnose the following:

- Charging system concern

- ABS module

PINPOINT TEST N : DTCs U3003:17

NOTE: DTC U3003:17 may be stored in the module memory due to past battery charging or vehicle jump starting events.

N1 CHECK FOR HIGH VOLTAGE DTCs SET IN OTHER MODULES

- Ignition ON.

- Enter the following diagnostic mode on the scan tool: Self-Test- All CMDTCs (Continuous Memory Diagnostic Trouble Codes).

Is DTC B1317, B1676, P0563 (PCM) or U3003:17 set in more than one module?

Yes
REFER to Charging System to diagnose an overcharging condition.

No
GO to N2.

N2 CHECK THE BATTERY VOLTAGE

- Turn off all interior/exterior lights and accessories.

- Start and run the engine at approximately 2,000 rpm for 3 minutes while monitoring the battery voltage.

Does the battery voltage rise to 15.5 volts or higher?

Yes
REFER to Charging System to diagnose an overcharging condition.

No
GO to N3.

N3 RECHECK FOR DTC U3003:17

- Turn the engine off.

- Ignition ON.

- Enter the following diagnostic mode on the scan tool: Self-Test- ABS Module.

- Using a scan tool, clear the ABS module DTCs.

- Repeat the ABS module self-test.

Is DTC U3003:17 still present?

Yes
For vehicles without adaptive cruise control, INSTALL a new ABS module. REFER to Anti-Lock Brake System (ABS) Module Service and Repair. TEST the system for normal operation.

For vehicles with adaptive cruise control, INSTALL a new HCU (Hydraulic Control Unit). REFER to Hydraulic Control Unit (HCU) Service and Repair.

No
The system is operating normally at this time. The DTC may have been set previously during battery charging or while jump starting the vehicle.