Checking components and wiring

Check the signal cable between gas temperature sensor connector terminal #3 and rear electronic module #C1 (#A41). Check for a short-circuit to supply voltage. Check for an open-circuit.

Check the signal cable between gas temperature sensor connector terminal #4 and rear electronic module #C2 (#A42). Check for a short-circuit to supply voltage. Check for an open-circuit.

Check the connector for the gas temperature sensor. Check for oxidation or damage.

Remedy as necessary.

Other information: 

• To fault-trace wiring and terminals, see Checking wiring and terminals
• To connect the breakout box, see Connecting the breakout box
• For information on signals and additional values:
  • For -2003, see Signal specification
  • For 2004, see Signal specification

Was a fault detected? 

• YES 

  Refer to Verification 

• NO 

  Refer to Replacing the component