P0607
2ZR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0607: Control Module Performance
P0607 - Control Module Performance
MONITOR DESCRIPTION
The ECM continuously monitors its internal processors (CPUs), and Heated Oxygen (HO2) sensor transistors built into the ECM. This self-check ensures that the ECM is functioning properly. If outputs from the processors deviate from the standards, the ECM will illuminate the MIL and set the DTC immediately.
NOTICE:
An exhaust gas leak generates noise in the HO2 sensor output. The ECM may interpret this as an HO2 sensor transistor malfunction and set P0607.
MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
TYPICAL MALFUNCTION THRESHOLDS
CONFIRMATION DRIVING PATTERN
- Stop the engine for 30 minutes or more [A].
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON and turn the Techstream on [B].
- Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
- Turn the ignition switch off and wait for at least 30 seconds.
- Turn the ignition switch to ON and turn the Techstream on [C].
- Start the engine and wait 2 minutes [D].
- Warm up the engine until the engine coolant temperature is 75°C (167°F) or higher [E].
- Idle the engine for 1 minute [F].
- Accelerate the vehicle to 80 km/h (50 mph) and stop the vehicle [G].
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
- Drive the vehicle at 56 to 80 km/h (35 to 50 mph) for 5 minutes or more [H].
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
- Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [I].
- Read the DTCs.
HINT
- If a DTC is output, the system is malfunctioning.
- If a DTC is not output, perform the following procedure.
- Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
- Input the DTC: P0607, P0136, P0137 or P0138.
- Check the DTC judgment result.
HINT
- If the judgment result shows ABNORMAL, the system has a malfunction.
- If the judgment result shows INCOMPLETE or UNKNOWN, perform steps [E] through [I] again.
- If no DTC is output, perform a universal trip and check for permanent DTCs DTC Check / Clear.
HINT
- If a permanent DTC is output, the system is malfunctioning.
- If no permanent DTC is output, the system is normal.
INSPECTION PROCEDURE
PROCEDURE
1. CHECK ANY OTHER DTCS OUTPUT
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine and ETC / Trouble Codes.
(e) Read the DTCs.
Result:
B -- CHECK FOR EXHAUST GAS LEAK
A -- Continue to next step.
2. INSPECT DTC (P0136, P0137 OR P0138)
(a) Inspect the P0136, P0137 or P0138 flowchart.
- If P0136 is output, troubleshoot for that DTC first P0136. Then proceed to "INSPECT ECM".
- If P0137 is output, troubleshoot for that DTC first P0136. Then proceed to "INSPECT ECM".
- If P0138 is output, troubleshoot for that DTC first P0136. Then proceed to "INSPECT ECM".
HINT
If P0607 and P0136, P0137 or P0138 are output, the output voltage of the heated oxygen sensor may remain close to 0 V or become high (around 1 V or more).
NEXT -- INSPECT ECM
3. CHECK FOR EXHAUST GAS LEAK
(a) Allow the engine to idle and rev the engine.
(b) Check for exhaust gas leak around the heated oxygen sensor.
If any exhaust gas leaks are present, repair it and proceed to step "PERFORM CONFIRMATION DRIVING PATTERN". If no exhaust gas leaks are present, proceed to "PERFORM CONFIRMATION DRIVING PATTERN".
HINT
- If no exhaust gas leaks are present, a malfunction in the heated oxygen sensor circuit is suspected.
- If any exhaust gas leaks are present around the heated oxygen sensor, noise appears in the output voltage of the heated oxygen sensor.
NEXT -- Continue to next step.
4. PERFORM CONFIRMATION DRIVING PATTERN
(a) Clear DTCs DTC Check / Clear.
(b) Connect the Techstream to the DLC3.
(c) Warm up the engine until the engine coolant temperature becomes 75 °C (167 °F) or more.
(d) Perform the driving pattern.
(1) Accelerate the vehicle until 80 km/h (50 mph) and stop the vehicle.
(2) Drive the vehicle by 56 to 80 km/h (35 to 50 mph) for 5 minutes or more.
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
(e) Enter the following menus: Powertrain / Engine and ETC / Trouble Codes.
(f) Read the DTCs.
Result:
C -- INSPECT ECM
B -- REPLACE ECM Removal
A -- Continue to next step.
5. INSPECT DTC (P0136, P0137 OR P0138)
(a) Inspect the P0136, P0137 or P0138 flow chart.
HINT
- If P0136 is output, troubleshoot for that DTC first P0136. Then proceed to "INSPECT ECM".
- If P0137 is output, troubleshoot for that DTC first P0136. Then proceed to "INSPECT ECM".
- If P0138 is output, troubleshoot for that DTC first P0136. Then proceed to "INSPECT ECM".
- If P0607 and P0136, P0137 or P0138 are output, the output voltage of the heated oxygen sensor may remain close to 0 V or become high (around 1 V or more).
NEXT -- Continue to next step.
6. INSPECT ECM
(a) Clear DTCs DTC Check / Clear.
(b) Stop the engine and wait for 30 minutes.
(c) Connect the Techstream to the DLC3.
(d) Start the engine and allow it to idle for 2 minutes.
(e) Turn the Techstream on.
(f) Enter the following menus: Powertrain / Engine and ETC / Trouble Codes.
(g) Read the DTCs.
Result:
B -- END
A -- REPLACE ECM Removal