Are any vacuum leaks found?
Yes | REPAIR the vacuum leak or INSTALL new components as necessary. | |
|---|---|---|
No | If the vehicle is equipped with a 2.3L EcoBoost engine, GO to R2 If the vehicle is equipped with any other engine, INSTALL a new brake booster. REFER to: Brake Booster - 3.7L Duratec (227kW/301PS) (206-07 Power Brake Actuation, Removal and Installation). REFER to: Brake Booster - 5.0L 32V Ti-VCT/5.2L 32V Ti-VCT (206-07 Power Brake Actuation, Removal and Installation). | |
R2 CHECK THE VACUUM PUMP OUTPUT
Ignition OFF. Disconnect the vacuum hose from the brake booster. Connect a vacuum gauge to the vacuum hose. Start the engine. Monitor the vacuum gauge.
Does the vacuum gauge display greater than 600 mBar (18 In-Hg)?
Yes | INSTALL a new brake booster. REFER to: Brake Booster - 2.3L EcoBoost (201kW/273PS) (206-07 Power Brake Actuation, Removal and Installation). | |
|---|---|---|
No | INSTALL a new vacuum pump. REFER to: Brake Vacuum Pump - 2.3L EcoBoost (201kW/273PS) (206-07 Power Brake Actuation, Removal and Installation). | |
U0151:00
Refer to Wiring Diagrams Cell 42 for schematic and connector information.
Normal Operation and Fault Conditions
With the ignition ON, the RCM sends messages to the ABS module over the HS-CAN2. If the ABS module does not receive these messages within a certain time frame, the module sets Diagnostic Trouble Codes (DTCs). For information on the messages sent to the ABS module by the RCM, refer to the Network Message Chart. REFER to: Anti-Lock Brake System (ABS) and Stability Control - System Operation and Component Description (206-09 Anti-Lock Brake System (ABS) and Stability Control, Description and Operation).
DTC Fault Trigger Conditions
DTC | Description | Fault Trigger Conditions |
|---|---|---|
U0151:00 Lost Communication With Restraints Control Module: No Sub Type Information | This DTC sets in continuous memory and on-demand when any of the messages from the RCM are missing. This can be due to a RCM failure, a circuit failure or excessive load on the HS-CAN2. |
Possible Causes
Wiring, terminals or connectors Network communication concern RCM
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.