DTC Advanced Diagnostics: P061B (3.0L Engine)

DTC P061B: Powertrain Control Module (PCM) Internal Malfunction (Torque Calculation)

General Description

Courtesy of HONDA, U.S.A., INC.

The torque monitoring system monitors unexpected acceleration of the vehicle and contributes to ensuring safety. The powertrain control module (PCM) compares the actual torque with the target torque and it is used for the malfunction detection. If the sum of the difference between the target torque and the actual torque exceeds the permissible value, the PCM detects a malfunction and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type

Execution	Continuous
Sequence	None
Duration	Depending on the driving conditions
DTC Type	One drive cycle, MIL on

Enable Conditions

Condition	Minimum	Maximum
Engine speed [Engine Speed]	650 rpm	-

[ ]: HDS Parameter

Malfunction Threshold

The sum of actual torque - (minus) target torque exceeds 1, 800 N.m (183.6 kgf.m, 1, 328 lbf.ft).

Possible Cause

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.

PCM internal circuit failure

Confirmation Procedure

Operating Condition

Start the engine.
Drive the vehicle at engine speed [Engine Speed] 700 rpm or more for 10 seconds or more.

When freeze data or the on-board snapshot is stored, drive the vehicle under those conditions instead of Driving Pattern step 2.
Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

Diagnosis Details

Conditions for setting the DTC

When a malfunction is detected, the MIL comes on and a Pending DTC, a Confirmed DTC, the freeze data, and the on-board snapshot are stored in the PCM memory.

Conditions for clearing the DTC

The MIL is cleared if the malfunction does not return in three consecutive trips in which the diagnostic runs. The MIL, the Pending DTC, the Confirmed DTC, the freeze data, and the on-board snapshot can be cleared with the scan tool clear command.