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DTC Troubleshooting

DIAGNOSTIC PROCEDURES CHART

Step Action YES NO
1  Was "Engine and Emission Control System Check" performed?  Go to Step 2. Go to ENGINE AND EMISSION CONTROL SYSTEM CHECK .
2  TP sensor power supply circuit check 
  1. Confirm that ignition mode of keyless push start system is "OFF".
  2. Disconnect connector from throttle body assembly.
  3. Check for proper terminal connection to throttle body assembly connector.
  4. If connections are OK, push engine switch to change ignition mode to "ON".
  5. Check that voltage between "C1" and "C4" circuits is 5 V.

Is it in good condition? 		 Go to Step 5. Go to Step 3.
3  TP sensor ground circuit check 
  1. Check that voltage between "C1" circuit and ground: 5 V

Is it in good condition? 		 Repair or replace "C4" circuit.
If this DTC is detected again, replace ECM and recheck DTC, see ECM REMOVAL AND INSTALLATION .		 Go to Step 4.
4  TP sensor power supply circuit check 
  1. Push engine switch to change ignition mode to "OFF".
  2. Disconnect "C01" and "E01" connectors.
  3. Check for proper terminal connection to "C01" and "E01" connectors.
  4. If connections are OK, check the following points.
    • Resistance of "C1" circuit: less than 1 Ω
    • Resistance of "C1" circuit between throttle body assembly connector and ground: infinity
    • Resistance between "C1" circuit terminal and each terminal at throttle body assembly connector: infinity
    • Voltage of "C1" circuit: 0 - 1 V (with ignition mode of keyless push start system in "ON")

Are they in good condition? 		 Replace ECM and recheck DTC, see ECM REMOVAL AND INSTALLATION . Repair or replace defective wire harness.
5  TP sensor (main) signal circuit check 
  1. Push engine switch to change ignition mode to "OFF".
  2. Disconnect "C01" and "E01" connectors.
  3. Check for proper terminal connection to "C01" and "E01" connectors.
  4. If connections are OK, check the following points.
    • Resistance of "C2" circuit: less than 1 Ω
    • Resistance of "C2" circuit between throttle body assembly connector and ground: infinity
    • Resistance between "C2" circuit terminal and each terminal at throttle body assembly connector: infinity
    • Voltage of "C2" circuit: 0 - 1 V (with ignition mode of keyless push start system in "ON")

Are they in good condition? 		 Go to Step 6. Repair or replace defective wire harness.
6  TP sensor check 
  1. Check TP sensor for performance, see ELECTRIC THROTTLE BODY ASSEMBLY ON-VEHICLE INSPECTION .

Is it in good condition? 		 Replace ECM and recheck DTC, see ECM REMOVAL AND INSTALLATION . Replace throttle body assembly, see THROTTLE BODY ASSEMBLY REMOVAL AND INSTALLATION .
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