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Suzuki GSX-R 1000 Service Manual: Open circuit check

Possible causes for the open circuit are as follows. As the cause can exist in the connector/coupler or terminal, they need to be checked carefully.

When checking system circuits including an electronic control unit such as ecm, etc., It is important to perform careful check, starting with items which are easier to check.

  1.  Disconnect the negative (–) cable from the battery.
  2. Check each connector/coupler at both ends of the circuit being checked for loose connection. Also check for condition of the coupler lock if equipped.

Suzuki GSX-R. Open circuit check


  1. Sensor
  2. Check for loose connection
  1. Using a test male terminal, check the female terminals of the circuit being checked for contact tension.

    Check each terminal visually for poor contact (possibly caused by dirt, corrosion, rust, entry of foreign object, etc.). At the same time, check to make sure that each terminal is fully inserted in the coupler and locked.

    If contact tension is not enough, rectify the contact to increase tension or replace. The terminals must be clean and free of any foreign material which could impede proper terminal contact.

Suzuki GSX-R. Open circuit check


  1. Check contact tension by inserting and removing
  2. Check each terminal for bend and proper alignment
  1. Using continuity inspect or voltage check procedure as described below, inspect the wire harness terminals for open circuit and poor connection.

    Locate abnormality, if any.

Suzuki GSX-R. Open circuit check


  1. Looseness of crimping
  2. Open
  3. Thin wire (a few strands left)
Battery
Battery connection in reverse polarity is strictly prohibited. Such a wrong connection will damage the components of the fi system instantly when reverse power is applied. Removing ...

Continuity check
Measure resistance across coupler “b” (between “a” and “c” in figure). If no continuity is indicated (infinity or over limit), the circuit is open between terminals “a” and “c”. Dis ...

Other materials:

Sprocket mounting drum dust seal / bearing removal and installation
Removal Remove the rear wheel assembly. Refer to “rear wheel assembly removal and installation” in section 2d .  Remove the rear sprocket mounting drum assembly (1). Refer to “rear sprocket / rear sprocket mounting drum removal and installation” (page 3a- 3). Remove the ...

Excva removal and installation
Removal Turn the ignition switch off.  Remove the left side cowling. Refer to “exterior parts removal and installation” in section 9d .  Connect the special tool (mode select switch) to the dealer mode coupler. Refer to “self-diagnostic procedures” in section 1a . After tur ...

Engine oil level check
Check the engine oil level as follows:  Place the motorcycle on level ground on the side stand.  Start the engine and allow it to idle for a few minutes.  Stop the engine and wait three minutes. Hold the motorcycle vertically and check the oil level through ...

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