Acura RL. Instruction — page 102

Fig. 317: F-CAN Malfunction (BUS-OFF) — Circuit Diagram

General Description

The controller area network (CAN) transmits/receives pulsing signals to/from the control modules
simultaneously by using two signal lines (CANH and CANL).

When the powertrain control module (PCM) does not receive the signals via the CAN lines for a set time or
more, the PCM detects a malfunction and a DTC is stored.

Monitor Execution, Sequence, Duration, DTC Type, OBD Status

MONITOR DESCRIPTION CHART

Enable Conditions

ENABLE CONDITIONS

Malfunction Threshold

The PCM does not receive any signals for at least 1 second.

Diagnosis Details

Conditions for illuminating the MIL

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the
PCM memory.

Execution

Continuous

Sequence

None

Duration

1 second or more

DTC Type

One drive cycle, MIL ON

OBD Status

N/A

Condition

Minimum

Maximum

Battery voltage

10.0 V

2007 Acura RL

2007 ENGINE PERFORMANCE Advanced Diagnostics — RL

me

Friday, June 05, 2009 2:32:09 PM

Page 405 © 2005 Mitchell Repair Information Company, LLC.

Conditions for clearing the MIL

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the
diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by
disconnecting the battery.

DTC U0104 (126): ADVANCED DIAGNOSTICS

DTC U0104: F-CAN MALFUNCTION (ADAPTIVE CRUISE CONTROL (ACC) UNIT-PCM)

Fig. 318: F-CAN Malfunction (Adaptive Cruise Control (ACC) Unit-PCM) — Circuit Diagram

General Description

The controller area network (CAN) transmits/receives pulsing signals to/from the control modules
simultaneously by using two signal lines (CANH and CANL).

When the powertrain control module (PCM) does not receive the signals via the CAN lines for more than a
set time, the PCM detects a malfunction and a DTC is stored.

Monitor Execution, Sequence, Duration, DTC Type, OBD Status

MONITOR DESCRIPTION CHART

Enable Conditions

ENABLE CONDITIONS

Execution

Continuous

Sequence

None

Duration

1 second or more

DTC Type

One drive cycle, MIL OFF

OBD Status

N/A

Condition

Minimum

Maximum

2007 Acura RL

2007 ENGINE PERFORMANCE Advanced Diagnostics — RL

me

Friday, June 05, 2009 2:32:09 PM

Page 406 © 2005 Mitchell Repair Information Company, LLC.

Malfunction Threshold

The PCM does not receive any signals from the gauge control module for at least 1 second.

Diagnosis Details

Conditions for illuminating the indicator

When a malfunction is detected, the DTC and the freeze frame data are stored in the PCM memory. The
MIL does not come on.

Conditions for clearing the DTC

The DTC and the freeze frame data can be cleared by using the scan tool Clear command or by
disconnecting the battery.

DTC U0107 (30): ADVANCED DIAGNOSTICS (L4 ENGINE A/T)

DTC U0107: LOST COMMUNICATION WITH THROTTLE ACTUATOR CONTROL MODULE

Battery voltage

10.0 V

2007 Acura RL

2007 ENGINE PERFORMANCE Advanced Diagnostics — RL

me

Friday, June 05, 2009 2:32:09 PM

Page 407 © 2005 Mitchell Repair Information Company, LLC.

Fig. 319: Lost Communication With Throttle Actuator Control Module — Circuit Diagram

General Description

The powertrain control module (PCM) uses the serial signal line for two-way communication with the
throttle actuator control module.

The PCM transmits the accelerator pedal position signal, etc., to the throttle actuator module, and the throttle
actuator control module transmits the actual throttle valve position signal, a malfunction signal, etc., to the
PCM.

When no serial signals from the throttle actuator control module are received or the serial signals are

2007 Acura RL

2007 ENGINE PERFORMANCE Advanced Diagnostics — RL

me

Friday, June 05, 2009 2:32:09 PM

Page 408 © 2005 Mitchell Repair Information Company, LLC.

Оцените статью
Инструкции по ремонту
Добавить комментарий