Nissan Maxima Service and Repair Manual: P2100, P2103 throttle control motor relay

Nissan Maxima Service and Repair Manual / Engine / Engine control system / DTC/circuit diagnosis / P2100, P2103 throttle control motor relay

Description

Power supply for the throttle control motor is provided to the ECM via the throttle control motor relay. The throttle control motor relay is controlled ON/OFF by the ECM. When the ignition switch is turned ON, the ECM sends an ON signal to throttle control motor relay and battery voltage is provided to the ECM. When the ignition switch is turned OFF, the ECM sends an OFF signal to throttle control motor relay and battery voltage is not provided to the ECM.

DTC Logic

DTC DETECTION LOGIC

Nissan Maxima. DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test.

  1. Turn ignition switch OFF and wait at least 10 seconds.
  2. Turn ignition switch ON.
  3. Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION: Before performing the following procedure, confirm that battery voltage is more than 8 V.

2.PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P2100

  1. Turn ignition switch ON and wait at least 2 seconds.
  2. Start engine and let it idle for 5 seconds.
  3. Check DTC.

3.PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P2103

  1. Turn ignition switch ON and wait at least 1 second.
  2. Check DTC.

Diagnosis Procedure

1.CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT

  1. Turn ignition switch OFF.
  2. Disconnect ECM harness connector.
  3. Disconnect IPDM E/R harness connector.
  4. Check the continuity between IPDM E/R harness connector and ECM harness connector.
  5. Also check harness for short to ground and short to power.

Nissan Maxima. CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT

2.CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-II

  1. Check the continuity between IPDM E/R harness connector and ECM harness connector.
  2. Also check harness for short to ground and short to power.

Nissan Maxima. CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-II

3.CHECK FUSE

  1. Disconnect 15 A fuse (No. 43) from IPDM E/R.
  2. Check if 15 A fuse is blown.

4.CHECK INTERMITTENT INCIDENT

    P2096, P2097, P2098, P2099 A/F sensor 1
    Description The air fuel ratio (A/F) sensor 1 is a planar one-cell limit current sensor. The sensor element of the A/F sensor 1 is composed an electrode layer, which transports ions. It has a he ...

    P2101 electric throttle control function
    Description Electric throttle control actuator consists of throttle control motor, throttle position sensor, etc. The throttle control motor is operated by the ECM and it opens and closes the ...

    Other materials:

    Audible reminders
    Brake pad wear warning The disc brake pads have audible wear warnings. When a disc brake pad requires replacement, it makes a high pitched scraping sound when the vehicle is in motion, whether or not the brake pedal is depressed. Have the brakes checked as soon as possible if the warning sou ...

    Install
    1. Align the head restraint/headrest stalks with the holes in the seat. Make sure that the head restraint/headrest is facing the correct direction. The stalk with the notch (notches) 1 must be installed in the hole with the lock knob 2 . 2. Push and hold the lock knob and push the head re ...

    Indicator lights
    For additional information, refer to "Vehicle information display" in this section. Front fog light indicator light (green) The front fog light indicator light illuminates when the front fog lights are on. For additional information, refer to "Fog light switch" in this section. Front passen ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2025 Copyright www.nimainfo.com
    0.0099