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Home >> Mazda >> 2006 >> B3000 Base, Automatic >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Troubleshooting (Communication Control System) >> Pinpoint Test 8: No Module/Network Communication - No Power To The Diagnostic Tool >> Possible Causes
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Possible Causes

NO MODULE/NETWORK COMMUNICATION - NO POWER TO DIAGNOSTIC TOOL PINPOINT TEST REFERENCE

PIN POINT TEST 8 NO MODULE/NETWORK COMMUNICATION - NO POWER TO THE DIAGNOSTIC TOOL
STEP INSPECTION ACTION
1 CHECK THE DIAGNOSTIC TOOL CONNECTOR
  • Inspect the WDS or equivalent tester pins for damage.
  • Are the pins OK? 
 Yes Go to next step.
No Repair the WDS or equivalent tester connector. Carry out the WDS or equivalent tester data link test.
2 CHECK THE DLC D-01 FOR DAMAGE
  • Key OFF.
  • Inspect the DLC D-01 pins for damage.
  • Are the pins OK? 
 Yes Go to next step.
No Repair the DLC D-01. Carry out the WDS or equivalent tester data link test.
3 CHECK THE VOLTAGE TO THE DLC D-01 CIRCUIT (O)
  • Measure the voltage between the DLC D-01 pin 16, circuit (O), harness side and ground.
  • Is the voltage greater than 10 volts? 
 Yes Go to next step.
No Verify the smart junction box (SJB) fuse 29 (20A) is OK. If OK, repair circuit (O) for an open. Carry out the WDS or equivalent tester data link test.
4 CHECK THE DLC GROUND CIRCUIT (B) AND CIRCUIT (B/W)
  • Measure the resistance between the DLC D-01 pin 4, circuit (B), harness side and ground; and between the DLC D-01 pin 5, circuit (B/W), harness side and ground.
  • Are the resistances less than 5 ohms? 
 Yes Repair the WDS or equivalent tester. Carry out the WDS or equivalent tester data link test.
No Repair circuit (B) or (B/W) for and open. Carry out the WDS or equivalent tester data link test.
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