Nissan Altima 2007-2012 Service Manual: IPDM E/R (Intelligent power distribution module engine room)

Reference Value

VALUES ON THE DIAGNOSIS TOOL

TERMINAL LAYOUT

PHYSICAL VALUES

Wiring Diagram — Coupe

Wiring Diagram — Sedan

Fail Safe

CAN COMMUNICATION CONTROL

When CAN communication with ECM and BCM is impossible, IPDM E/R performs fail-safe control. After CAN communication recovers normally, it also returns to normal control.

If No CAN Communication Is Available With ECM

If No CAN Communication Is Available With BCM

IGNITION RELAY MALFUNCTION DETECTION FUNCTION

• IPDM E/R monitors the voltage at the contact circuit and excitation coil circuit of the ignition relay inside it.

• IPDM E/R judges the ignition relay error if the voltage differs between the contact circuit and the excitation coil circuit.

• If the ignition relay cannot turn OFF due to contact seizure, it activates the tail lamp relay for 10 minutes to alert the user to the ignition relay malfunction when the ignition switch is turned OFF.

NOTE: The tail lamp turns OFF when the ignition switch is turned ON.

FRONT WIPER CONTROL

IPDM E/R detects front wiper stop position by a front wiper auto stop signal.

When a front wiper auto stop signal is in the conditions listed below, IPDM E/R stops power supply to wiper after repeating a front wiper 10 second activation and 20 second stop five times.

NOTE: This operation status can be confirmed on the IPDM E/R “Data Monitor” that displays “BLOCK” for the item “WIP PROT” while the wiper is stopped.

STARTER MOTOR PROTECTION FUNCTION

IPDM E/R turns OFF the starter control relay to protect the starter motor when the starter control relay remains active for 90 seconds.

DTC Index

NOTE: The details of TIME display are as follows.

• CRNT: The malfunctions that are detected now

• 1 - 39: The number is indicated when it is normal at present and a malfunction was detected in the past. It increases like 0 → 1 → 2 · · · 38 → 39 after returning to the normal condition whenever IGN OFF → ON. It is fixed to 39 until the self-diagnosis results are erased if it is over 39. It returns to 0 when a malfunction is detected again in the process.

    BCM (Body control module)
    Reference Value VALUES ON THE DIAGNOSIS TOOL Terminal Layout Physical Values 1: Sedan only 2: With LH front window anti-pinch 3: With LH and RH ...

    Symptom diagnosis
    POWER DISTRIBUTION SYSTEM SYMPTOMS Symptom Table Before performing the diagnosis in the following table, check the contents of PCS-49, "Work Flow". ...

    Other materials:

    B2555 stop lamp
    Description BCM detects the stop lamp status and confirms the stop lamp switch ON/OFF status. BCM confirms the engine start condition according to the stop lamp switch ON/OFF status. DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1.PERFORM DTC CONFIRMATION PROCEDURE 1. Depress ...

    P0443 Evap canister purge volume control solenoid valve
    Description The EVAP canister purge volume control solenoid valve is used to control the flow rate of fuel vapor from the EVAP canister. The EVAP canister purge volume control solenoid valve is moved by ON/OFF pulses from the ECM. The longer the ON pulse, the greater the amount of fuel vapor th ...

    Thermostat and thermostat housing
    Removal and Installation 1. Gasket 2. Thermostat assembly WARNING: Never remove the radiator cap when the engine is hot. Serious burns could occur from high pressure coolant escaping from the radiator. REMOVAL CAUTION: Perform when engine is cool. 1. Drain engine coolant from the radiat ...