Diagnostic Trouble Code Information BCM-U040164

Condition 

Fig 1: Identifying Brake Control Module (BCM) & Engine Control Module (ECM)

Courtesy of VOLVO CARS CORPORATION

The engine control module (ECM) sends a signal to the brake control module (BCM) via CAN to indicate whether the rpm signal is correct. The brake control module (BCM) uses the rpm signal to control the stability function.

Diagnostic trouble code BCM-U040164 is generated if the brake control module (BCM) registers that the engine control module (ECM) has sent a signal indicating that the rpm signal is unreasonable.

The diagnostic trouble code can be diagnosed after the engine has started.

Substitute Value 

• TC is blocked.
• SC is blocked.
• AYC is blocked.

HINT: For information on abbreviations:  BRAKE SYSTEM, ABBREVIATIONS 

Possible Source 

• Malfunction in engine control module (ECM).

Fault symptom[s] 

• General warning light on.
• Anti-spin is not operational.
• The stability function is not operational.
• The anti-skid function is not operational.