Nissan Maxima Service and Repair Manual: Exhaust valve timing control
System Diagram
![Nissan Maxima. System Diagram](/images/manuals/399/nissan_maxima_exhaust_valve_timing_control_509.jpg)
System Description
INPUT/OUTPUT SIGNAL CHART
![Nissan Maxima. INPUT/OUTPUT SIGNAL CHART](/images/manuals/399/nissan_maxima_exhaust_valve_timing_control_510.jpg)
*: This signal is sent to the ECM via the CAN Communication line.
SYSTEM DESCRIPTION
![Nissan Maxima. SYSTEM DESCRIPTION](/images/manuals/399/nissan_maxima_exhaust_valve_timing_control_511.jpg)
This mechanism magnetically controls cam phases continuously with the fixed
operating angle of the exhaust
valve.
The ECM receives signals such as crankshaft position, camshaft position, engine
speed, and engine oil temperature.
Then, the ECM sends ON/OFF pulse duty signals to the exhaust valve timing
control magnet
retarder depending on driving status. This makes it possible to control the
shut/open timing of the exhaust
valve to increase engine torque and output in a range of high engine speed.
Component Parts Location
![Nissan Maxima. Component Parts Location](/images/manuals/399/nissan_maxima_exhaust_valve_timing_control_512.jpg)
- Intake valve timing control solenoid
valve (bank 1)
- Electronic controlled engine mount
control solenoid valve
- Exhaust valve timing control magnet
retarder (bank 2)
- Intake valve timing control solenoid
valve (bank 2)
- Knock sensor (bank 1 and 2)
- Fuel injector (bank 2)
- Ignition coil (with power transistor) and
spark plug (bank 2)
- Exhaust valve timing control position
sensor (bank 2)
- Crankshaft position sensor (POS)
- Engine coolant temperature sensor
- Camshaft position sensor (PHASE)
(bank 2)
- Transmission range switch
- Refrigerant pressure sensor
- ECM
- Battery current sensor
- Condenser-2
- EVAP canister purge volume control
solenoid valve
- Mass air flow sensor (with intake air
temperature sensor)
- Camshaft position sensor (PHASE)
(bank 1)
- EVAP service port
- Power valve actuator 2
- Electric throttle control actuator
- Exhaust valve timing control position
sensor (bank 1)
- Ignition coil (with power transistor) and
spark plug (bank 1)
- Fuel injector (bank 1)
- VIAS control solenoid valve 1 and 2
- Power valve actuator 1
- Exhaust valve timing control magnet
retarder (bank 1)
- Power steering pressure sensor
![Nissan Maxima. Component Parts Location](/images/manuals/399/nissan_maxima_exhaust_valve_timing_control_513.gif)
- Mas air flow sensor (with intake air
temperature sensor)
- Air cleaner case
- Engine coolant temperature sensor
(view with engine cover removed)
- EVAP canister purge volume control
solenoid valve (view with engine cover
removed)
- Power valve actuator 1 (view with engine
cover removed)
- VIAS control solenoid valve 1
- VIAS control solenoid valve 2
- Power valve actuator 2
- Power steering pressure sensor
- Tie rod (RH)
- Camshaft position sensor (PHASE)
(bank 1) (view with air cleaner case removed)
- Exhaust valve timing control position
sensor (bank 1)
- Camshaft position sensor (PHASE)
(bank 2) (view with air cleaner case removed)
- Exhaust valve timing control position
sensor (bank 2)
- Engine oil temperature sensor
: Vehicle front
![Nissan Maxima. Component Parts Location](/images/manuals/399/nissan_maxima_exhaust_valve_timing_control_515.jpg)
- A/F sensor 1 (bank 1) (view with engine
removed)
- A/F sensor 1 (bank 2)
- HO2S2 (bank 1) harness connector
(view with engine removed)
- HO2S2 (bank 2) harness connector
- Front engine mount
- Crankshaft position sensor (POS)
: Vehicle front
![Nissan Maxima. Component Parts Location](/images/manuals/399/nissan_maxima_exhaust_valve_timing_control_517.gif)
- Electronic controlled engine mount
control solenoid valve (view with engine
cover removed)
- EVAP control system pressure sensor
(view with rear suspension member removed)
- EVAP canister vent control valve
- EVAP canister
- Fuel injector harness connector (view
with intake manifold collector removed)
- Exhaust valve timing control magnet
retarder (bank 1) (view with engine removed)
- Intake valve timing control solenoid
valve (bank 1)
- Intake valve timing control solenoid
valve (bank 2)
- Exhaust valve timing control magnet
retarder (bank 2)
: Vehicle front
![Nissan Maxima. Component Parts Location](/images/manuals/399/nissan_maxima_exhaust_valve_timing_control_519.gif)
- Knock sensor (bank 2) (view with intake
manifold removed)
- Knock sensor (bank 1)
- Transmission range switch
(view with CVT removed)
- Battery
- IPDM E/R
- ECM
- Refrigerant pressure sensor (view
with front grille removed)
- Accelerator pedal position sensor
: Vehicle front
![Nissan Maxima. Component Parts Location](/images/manuals/399/nissan_maxima_exhaust_valve_timing_control_521.jpg)
- Stop lamp switch
- ASCD brake switch
- ASCD steering switch
Component Description
Component Reference
- Camshaft position sensor EC-300, "Description"
- Crankshaft position sensor EC-296, "Description"
- Engine oil temperature sensor EC-277, "Description"
- Exhaust valve timing control magnet retarder EC-180, "Description"
- Exhaust valve timing control position sensor
System Diagram
System Description
*1: ECM determines the start signal status by the signals of engine speed and
battery voltage.
*2: This signal is sent to the ECM via the CAN communicat ...
System Diagram
System Description
INPUT/OUTPUT SIGNAL CHART
*: This signal is sent to the ECM via the CAN communication line
SYSTEM DESCRIPTION
This mechanism hydraulically controls c ...
Other materials:
Communication signal circuit
Description
Detects door open/close condition.
Diagnosis Procedure
1.CHECK FRONT DOOR SWITCH INPUT SIGNAL
Turn ignition switch OFF.
Disconnect sunshade motor assembly connector.
Turn ignition switch ON.
Check signal between sunshade motor assembly harness connector and
ground with os ...
ECU diagnosis information
CLIMATE CONTROLLED SEAT CONTROL UNIT
Reference Value
TERMINAL LAYOUT
PHYSICAL VALUES
Fail-safe
Climate controlled seat control unit equips fail-safe function.
When a malfunction occurs in the systems shown as per the following,
climate controlled seat control unit
stops output. ...
P0605 ECM
Description
The ECM consists of a microcomputer and connectors for signal
input and output and for power supply. The ECM controls the engine
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always ...