Nissan Maxima Service and Repair Manual: Tilt sensor
Description
- The tilt sensor is installed to the steering column assembly.
- The pulse signal is input to the driver seat control unit when the tilt
is operated.
- The driver seat control unit counts the pulse and calculates the
tilt amount of the steering column.
Component Function Check
1.CHECK FUNCTION
- Select "TILT PULSE" in "DATA MONITOR" mode with CONSULT.
- Check tilt sensor signal under the following conditions.

Diagnosis Procedure
1. CHECK TILT SENSOR SIGNAL
- Turn ignition switch ON.
- Check voltage signal between driver seat control unit connector
and ground with oscilloscope.

2. CHECK TILT SENSOR CIRCUIT
- Turn ignition switch OFF.
- Disconnect driver seat control unit and tilt motor.
- Check continuity between driver seat control unit harness
connector and tilt motor harness connector.

- Check continuity between driver seat control unit harness connector and
ground.

3. CHECK TILT SENSOR POWER SUPPLY
- Connect driver seat control unit.
- Turn ignition switch ON.
- Check voltage between tilt motor harness connector and ground.

4. CHECK TILT SENSOR POWER SUPPLY CIRCUIT

- Turn ignition switch OFF.
- Disconnect automatic drive positioner control unit.
- Check continuity between automatic drive positioner control unit
harness connector and tilt motor harness connector.

- Check continuity between automatic drive positioner control unit
harness connector and ground.

5. CHECK TILT SENSOR GROUND CIRCUIT

- Turn ignition switch OFF.
- Disconnect automatic drive positioner control unit.
- Check continuity between automatic drive positioner control unit
harness connector and tilt motor harness connector.

Description
The lifting sensor (rear) is installed to the seat frame.
The pulse signal is input to the driver seat control unit when the
lifting (rear) is operated.
The driver seat control ...
Description
The telescopic sensor is installed to the steering column assembly.
The pulse signal is input to the driver seat control unit when
telescopic is performed.
The driver seat contr ...
Other materials:
P0300, P0301, P0302, P0303, P0304, P0305, P0306 misfire
DTC Logic
DTC DETECTION LOGIC
When a misfire occurs, engine speed will fluctuate. If the engine speed
fluctuates enough to cause the crankshaft
position (CKP) sensor (POS) signal to vary, ECM can determine that a misfire is
occurring.
The misfire detection logic consists of the followin ...
Engine coolant temperature gauge
The gauge indicates the engine coolant temperature.
The engine coolant temperature is within the
normal range 1 when the gauge needle points
within the zone shown in the illustration.
The engine coolant temperature varies with the
outside air temperature and driving conditions.
CAUTION ...
Diagnosis system (ECM)
DIAGNOSIS DESCRIPTION
DIAGNOSIS DESCRIPTION : 1st Trip Detection Logic and Two Trip Detection
Logic
When a malfunction is detected for the first time, 1st trip DTC and 1st trip
Freeze Frame data are stored in the
ECM memory. The MIL will not illuminate at this stage. <1st trip>
If th ...