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Engine Control Module (ECM) Diagnostic Trouble Codes - 12 of 13: Other Volvo XC90 I

Testing & Diagnostics 8 illustrations ~9499 words

VERIFICATION

HINT: After carrying out the repair, check that the fault has been remedied.

Scheme 428

Scheme 428: VERIFICATION
Scheme 428: VERIFICATION

Scheme 429

Scheme 429
Scheme 429

Scheme 430

Scheme 430
Scheme 430
  1. Ignition off
  2. Reinstall the connectors, components etc.
  3. Start the engine.
  4. Read off the battery voltage.
  5. Load the battery by switching on several power consumers with a high power consumption, for example, the blower, main beam, etc. Read off the battery voltage using the VCT2000 (or appropriate scan tool). Check that the battery voltage is correct, battery voltage shall be approx. 13-14 V. Test at different engine speeds.

Is the function OK?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S23490933422012060500000)

FAULT-TRACING INFORMATION

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

FAULT-TRACING

see FAULT-TRACING

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off
  2. Reinstall the connectors, components etc.
  3. Start the engine.
  4. Read off the battery voltage.
  5. Load the battery by switching on several power consumers with a high power consumption, for example, the blower, main beam, etc. Read off the battery voltage using the VCT2000 (or appropriate scan tool). Check that the battery voltage is correct, battery voltage shall be approx. 13-14 V. Test at different engine speeds.

Is the function OK?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S19583908782012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

see FAULT-TRACING

see FAULT-TRACING

CHECKING THE STATUS

  1. Ignition on, wait for at least 15 seconds to perform the diagnosis. Read the diagnostic status and fault status for the diagnostic trouble code by selecting the diagnostic trouble code in the list. Check if the malfunction is permanent or intermittent by reading off the diagnostic trouble code's status when the diagnostic status is "Implemented". If the trouble status is "Malfunction found", this indicates that the malfunction is permanent. If the trouble status is "No malfunction found", this indicates that the malfunction is intermittent and not active right now. NOTE: Trouble status cannot go from "Malfunction found" to "No malfunction found" in the same operating cycle.
  1. Continue Refer to «CHECKING THE DIAGNOSTIC TROUBLE CODES (DTCS)»(ref-476784-S33059787922012060500000)

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Reinstall the connectors, components etc.
  2. Start and warm up the engine. Read off the fuel pump's load (signal from engine control module (ECM) to fuel pump module). Check that the signal is approx. 50 % (±10 %) for idling, warm engine.

Is the signal reasonable?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S40060613802012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

  1. Ignition on, wait for at least 15 seconds to perform the diagnosis. Read the diagnostic status and fault status for the diagnostic trouble code by selecting the diagnostic trouble code in the list. Check if the malfunction is permanent or intermittent by reading off the diagnostic trouble code's status when the diagnostic status is "Implemented". If the trouble status is "Malfunction found", this indicates that the malfunction is permanent. If the trouble status is "No malfunction found", this indicates that the malfunction is intermittent and not active right now. NOTE: Trouble status cannot go from "Malfunction found" to "No malfunction found" in the same operating cycle.
  1. Continue Refer to «CHECKING THE DIAGNOSTIC TROUBLE CODES (DTCS)»(ref-476784-S30827125722012060500000)

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Reinstall the connectors, components etc.
  2. Start and warm up the engine. Read off the fuel pump's load (signal from engine control module (ECM) to fuel pump module). Check that the signal is approx. 50 % (±10 %) for idling, warm engine.

Is the signal reasonable?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S36419237032012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

see FAULT-TRACING

see FAULT-TRACING

  1. Ignition on, wait for at least 15 seconds to perform the diagnosis. Read the diagnostic status and fault status for the diagnostic trouble code by selecting the diagnostic trouble code in the list. Check if the malfunction is permanent or intermittent by reading off the diagnostic trouble code's status when the diagnostic status is "Implemented". If the trouble status is "Malfunction found", this indicates that the malfunction is permanent. If the trouble status is "No malfunction found", this indicates that the malfunction is intermittent and not active right now. NOTE: Trouble status cannot go from "Malfunction found" to "No malfunction found" in the same operating cycle.
  1. Continue Refer to «CHECKING THE DIAGNOSTIC TROUBLE CODES (DTCS)»(ref-476784-S38727722102012060500000)

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Reinstall the connectors, components etc.
  2. Start and warm up the engine. Read off the fuel pump's load (signal from engine control module (ECM) to fuel pump module). Check that the signal is approx. 50 % (±10 %) for idling, warm engine.

Is the signal reasonable?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S10042205552012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

  1. Ignition on, wait for at least 15 seconds to perform the diagnosis. Read the diagnostic status and fault status for the diagnostic trouble code by selecting the diagnostic trouble code in the list. Check if the malfunction is permanent or intermittent by reading off the diagnostic trouble code's status when the diagnostic status is "Implemented". If the trouble status is "Malfunction found", this indicates that the malfunction is permanent. If the trouble status is "No malfunction found", this indicates that the malfunction is intermittent and not active right now. NOTE: Trouble status cannot go from "Malfunction found" to "No malfunction found" in the same operating cycle.
  1. Continue Refer to «CHECKING THE DIAGNOSTIC TROUBLE CODES (DTCS)»(ref-476784-S27375495272012060500000)

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Reinstall the connectors, components etc.
  2. Start and warm up the engine. Read off the fuel pump's load (signal from engine control module (ECM) to fuel pump module). Check that the signal is approx. 50 % (±10 %) for idling, warm engine.

Is the signal reasonable?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S01773466872012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

see FAULT-TRACING INFORMATION

see FAULT-TRACING INFORMATION

see FAULT-TRACING INFORMATION

see FAULT-TRACING INFORMATION

see FAULT-TRACING INFORMATION

see FAULT-TRACING INFORMATION

see FAULT-TRACING INFORMATION

Note. Trouble status cannot go from "Malfunction found" to "No malfunction found" in the same operating cycle.

  1. Ignition on, wait for at least 15 seconds to perform the diagnosis. Read the diagnostic status and fault status for the diagnostic trouble code by selecting the diagnostic trouble code in the list. Check if the malfunction is permanent or intermittent by reading off the diagnostic trouble code's status when the diagnostic status is "Implemented". If the trouble status is "Malfunction found", this indicates that the malfunction is permanent. If the trouble status is "No malfunction found", this indicates that the malfunction is intermittent and not active right now. NOTE: Trouble status cannot go from "Malfunction found" to "No malfunction found" in the same operating cycle.
  1. Continue Refer to «REPLACING THE COMPONENT»(ref-476784-S22704396892012060500000)

REPLACING THE COMPONENT

The engine control module (ECM) has registered an internal fault.

If the fault is intermittent, it has been registered previously but no longer remains. Intermittent faults can be due to disruption when the engine control module (ECM) started or can be another type of fault that may recur at different instances. The fault is assessed on a case by case basis. If the fault recurs, replace the engine control module (ECM).

In the event of a permanent fault, replace the engine control module (ECM).

Remedy as necessary.

Other information

  1. see «ENGINE CONTROL MODULE (ECM), REPLACING»(ref-476695-S24530329132012060500000)
  1. Continue Refer to «INFORMATION»(ref-476784-S35762360172012060500000)

In case of this defect, troubleshooting is not followed by verification.

The information can be displayed again or the fault-tracing for this fault can be interrupted.

see FAULT-TRACING

see FAULT-TRACING

see FAULT-TRACING

see FAULT-TRACING

  1. Start the engine.
  2. A/C on. Read the diagnostic status and trouble status for the diagnostic trouble code by selecting the diagnostic trouble code in the list. Check if the malfunction is permanent or intermittent by reading off the diagnostic trouble code's status when the diagnostic status is "Implemented". If the trouble status is "Malfunction found", this indicates that the malfunction is permanent. If the trouble status is "No malfunction found", this indicates that the malfunction is intermittent and not active right now. NOTE: Trouble status cannot go from "Malfunction found" to "No malfunction found" in the same operating cycle.
  1. Continue Refer to «CHECKING COMPONENT AND CABLES»(ref-476784-S20927815092012060500000)

CHECKING COMPONENT AND CABLES

  1. Ignition off Check the signal cables for short-circuit to voltage, short-circuit to ground, and open circuit. Check between: Engine control module (ECM) #A49 (#A49) and the control valve's (solenoid's) connector #2, signal cable (+). HINT: The control valve with solenoid is located on the underside of the A/C compressor. Remedy as necessary. Other information see «CONNECTING THE BREAKOUT BOX»(ref-476691-S27857399862012060500000) see «SIGNAL SPECIFICATION, ENGINE CONTROL MODULE (ECM)»(ref-476694-S30016655152012060500000) see «SOLENOID VALVE COMPRESSOR, REPLACING»(ref-476744-S37325918232012060500000) see «CHECKING WIRING AND TERMINALS»(ref-476689-S17283010372012060500000)
  1. Continue Refer to «VERIFICATION»(ref-476784-S32712209042012060500000)

HINT: After repairing, it is necessary to check that the malfunction has been fixed.

  1. Ignition off
  2. Reconnect the connectors, components, etc.
  3. Ignition on
  4. Read the diagnostic status and trouble status for the diagnostic trouble code by selecting the diagnostic trouble code in the list. Check the trouble status for the diagnostic trouble code when the diagnosis is "Implemented". When the function is correct the trouble status should be "No malfunction found" when the diagnosis is implemented.

Is the function OK?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S16849031792012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

see FAULT-TRACING

see FAULT-TRACING

HINT: After repairing, it is necessary to check that the malfunction has been fixed.

  1. Ignition off
  2. Reconnect the connectors, components, etc.
  3. Ignition on
  4. Read the diagnostic status and trouble status for the diagnostic trouble code by selecting the diagnostic trouble code in the list. Check the trouble status for the diagnostic trouble code when the diagnosis is "Implemented". When the function is correct the trouble status should be "No malfunction found" when the diagnosis is implemented.

Is the function OK?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S31162112632012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

see FAULT-TRACING

see FAULT-TRACING

  1. Ignition on Read the diagnostic status and fault status for the diagnostic trouble code by selecting the diagnostic trouble code in the list. Check if the malfunction is permanent or intermittent by reading off the diagnostic trouble code's status when the diagnostic status is "Implemented". If the trouble status is "Malfunction found", this indicates that the malfunction is permanent. If the trouble status is "No malfunction found", this indicates that the malfunction is intermittent and not active right now. NOTE: Trouble status cannot go from "Malfunction found" to "No malfunction found" in the same operating cycle.
  1. Continue Refer to «CHECKING COMPONENTS AND WIRING»(ref-476784-S12516820282012060500000)

HINT: After repairing, it is necessary to check that the malfunction has been fixed.

  1. Ignition off
  2. Reconnect the connectors, components, etc.
  3. Ignition on
  4. Read the diagnostic status and trouble status for the diagnostic trouble code by selecting the diagnostic trouble code in the list. Check the trouble status for the diagnostic trouble code when the diagnosis is "Implemented". When the function is correct the trouble status should be "No malfunction found" when the diagnosis is implemented.

Is the function OK?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S24890643322012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

see FAULT-TRACING

see FAULT-TRACING INFORMATION

see FAULT-TRACING INFORMATION

see FAULT-TRACING

see FAULT-TRACING INFORMATION

see FAULT-TRACING INFORMATION

see FAULT-TRACING

see FAULT-TRACING

see FAULT-TRACING

  1. Ignition on Activate the control valve for variable intake. Check if the fault is permanent or intermittent. A clicking noise is heard from the valve at activation. The fault is permanent if the valve does not activate. If the valve activates this indicates that the fault is intermittent and not presently active.
  1. Continue Refer to «CHECKING COMPONENTS AND WIRING»(ref-476784-S24367990882012060500000)

Scheme 431

Scheme 431
Scheme 431
  1. Ignition off Check the control valve connector and terminals. Check for contact resistance and oxidation. Check the control valve between control valve terminals #1 and #2. Check the resistance. Disconnect the engine control module (ECM). Check the signal cable for the control valve. Check for a short-circuit to ground. Check for an open-circuit. Take readings between control module terminal #A95 (#B35) and control valve terminal #2. Check the supply cable for the control valve. Check for an open-circuit. Take readings between control module terminal #B04 (#C04) and control valve terminal #1. Remedy as necessary. Other information see «CONNECTING THE BREAKOUT BOX»(ref-476691-S27857399862012060500000) see «SIGNAL SPECIFICATION, ENGINE CONTROL MODULE (ECM)»(ref-476694-S30016655152012060500000) see «COMPONENT SPECIFICATIONS»(ref-476694-S25047767552012060500000) see «CHECKING WIRING AND TERMINALS»(ref-476689-S17283010372012060500000)
  1. Continue Refer to «VERIFICATION»(ref-476784-S34608672732012060500000)

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off
  2. Reconnect the connectors, components, etc.
  3. Ignition on
  4. Use the VCT2000 (or appropriate scan tool) to activate the control valve. Check that the control valve clicks at activation

Is the function OK?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S13469459902012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

see FAULT-TRACING

see FAULT-TRACING

  1. Ignition on Activate the control valve for variable intake. Check if the fault is permanent or intermittent. A clicking noise is heard from the valve at activation. The fault is permanent if the valve does not activate. If the valve activates this indicates that the fault is intermittent and not presently active.
  1. Continue Refer to «CHECKING COMPONENTS AND WIRING»(ref-476784-S04336803152012060500000)

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off
  2. Reconnect the connectors, components, etc.
  3. Ignition on
  4. Use the VCT2000 (or appropriate scan tool) to activate the control valve. Check that the control valve clicks at activation

Is the function OK?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S31198913182012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

see FAULT-TRACING

see FAULT-TRACING

  1. Ignition on, wait for at least 15 seconds to perform the diagnosis. Read off diagnostic trouble code status. Check if the malfunction is permanent or intermittent by reading off the diagnostic trouble code's status when the diagnostic status is "Implemented". If the trouble status is "Malfunction found", this indicates that the malfunction is permanent. If the trouble status is "No malfunction found", this indicates that the malfunction is intermittent.
  1. Continue Refer to «REPLACING THE COMPONENT»(ref-476784-S36117447302012060500000)

The engine control module (ECM) has registered an internal malfunction.

If the malfunction is intermittent, it has been registered previously but no longer remains. Intermittent malfunctions can be due to disruption when the engine control module (ECM) started or can be another type of malfunction that may recur at different instances. The malfunction is assessed on a case by case basis. If the malfunction recurs, replace the engine control module (ECM).

In case of permanent malfunction, replace the engine control module (ECM).

Remedy as necessary.

Other information

  1. see «ENGINE CONTROL MODULE (ECM), REPLACING»(ref-476695-S24530329132012060500000)
  1. Continue Refer to «INFORMATION»(ref-476784-S14581181102012060500000)

In case of this defect, troubleshooting is not followed by verification.

The information can be displayed again or the fault-tracing for this fault can be interrupted.

see FAULT-TRACING

see FAULT-TRACING

VERIFICATION, CONTINUED

HINT: After carrying out the repair, check that the fault has been remedied.

Scheme 432

Scheme 432
Scheme 432
  1. Ignition off.
  2. Reinstall the connectors, components etc.
  3. Ignition on.
  4. Loosen the connector for the mass air flow sensor. Check the voltage on the mass air flow sensor's connector #1. The voltage must be approximately battery voltage.
  5. Ignition off. Check the system relay when it releases (approx. 2-10 min after ignition off). Check the voltage on the mass air flow sensor's connector #1. There shall be no voltage when the system relay is not drawn.

Is the function OK?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S19568857692012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

REPLACING RELAYS IN THE MAIN FUSE BOX AND OTHER RELAYS IN THE ENGINE COMPARTMENT

REMOVING

Remove

  1. battery negative lead.
  2. relay. Position of relays according to: «INSTALLING»(ref-494831-S23562805162012081600000) .

INSTALLING

Scheme 433

Scheme 433
Scheme 433

Install relay.

Connect battery negative lead.

  1. Test relay function.

Relay position, engine compartment

  1. 1) Main relay.
  2. 2) Pulsed secondary air injection system (PAIR) pump.
  3. 3) Starter relay.
  4. 4) Air conditioning (A/C) relay.
  5. 5) Engine cooling fan (FC).

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off.
  2. Reinstall the connectors, components etc.
  3. Ignition on.
  4. Loosen the connector for the mass air flow sensor. Check the voltage on the mass air flow sensor's connector #1. The voltage must be approximately battery voltage.
  5. Ignition off. Check the system relay when it releases (approx. 2-10 min after ignition off). Check the voltage on the mass air flow sensor's connector #1. There shall be no voltage when the system relay is not drawn.

Is the function OK?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S16763101002012060500000)

see FAULT-TRACING

see FAULT-TRACING

see FAULT-TRACING

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off
  2. Reinstall the connectors, components etc.
  3. Ignition on Activate the engine cooling fan using the VCT2000 (or appropriate scan tool). Check that the engine cooling fan (FC) starts when activated.

Is the function OK?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S21739520802012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

see FAULT-TRACING

see FAULT-TRACING

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off
  2. Reinstall the connectors, components etc.
  3. Ignition on Activate the engine cooling fan using the VCT2000 (or appropriate scan tool). Check that the engine cooling fan (FC) starts when activated.

Is the function OK?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S38083546022012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

see FAULT-TRACING

see FAULT-TRACING

see FAULT-TRACING

see FAULT-TRACING

see FAULT-TRACING

see FAULT-TRACING

INFORMATION

No fault-tracing has been developed for this diagnostic trouble code (DTC).

The diagnostic trouble code (DTC) for this fault is first stored in the Transmission control module (TCM), then in the Engine control module (ECM). This diagnostic trouble code (DTC) can first be erased when the root fault has been remedied and the diagnostic trouble code (DTC) for the root fault has been erased.

For further information on this diagnostic trouble code, see Diagnostic trouble code (DTC) information.

see FAULT-TRACING

see FAULT-TRACING INFORMATION

see FAULT-TRACING INFORMATION

see FAULT-TRACING INFORMATION

see FAULT-TRACING

see FAULT-TRACING

see FAULT-TRACING

see FAULT-TRACING

see FAULT-TRACING

see FAULT-TRACING

see FAULT-TRACING INFORMATION

see FAULT-TRACING INFORMATION

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

  1. Start the engine and let it idle for approx. 3-5 minutes to perform the diagnosis. Check if the malfunction is permanent or intermittent by reading off the diagnostic trouble code's status when the diagnostic status is "Implemented". If the trouble status is "Malfunction found", this indicates that the malfunction is permanent. If the trouble status is "No malfunction found", this indicates that the malfunction is intermittent.
  1. Continue Refer to «CHECKING COMPONENTS»(ref-476784-S15295994092012060500000)

CHECKING COMPONENTS

CAUTIONDo not apply rust solvent spray or grease to the heated oxygen sensor's (HO2S) connector.

Check the rear heated oxygen sensor connector (bank 1). Check for contact resistance and oxidation.

Check the signal cable between engine control module (ECM) and rear heated oxygen sensor for contact resistance and oxidation in the connections, open circuit and short-circuit to ground.

If the above troubleshooting does not solve the problem, try a new heated oxygen sensor.

Remedy as necessary.

Other information

  1. see «CONNECTING THE BREAKOUT BOX»(ref-476691-S30437390172012060500000)
  2. see «SIGNAL SPECIFICATION»(ref-476694-S14228516802012060500000)
  3. see «OXYGEN SENSOR (CATALYST MONITOR SENSOR)»(ref-476768-S18546887202012060500000)
  4. see «CHECKING WIRING AND TERMINALS»(ref-476689-S17655503092012060500000)

Scheme 434

Scheme 434
Scheme 434
  1. Continue Refer to «VERIFICATION»(ref-476784-S42661976292012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

HINT: After repairing, it is necessary to check that the malfunction has been fixed.

  1. Ignition off
  2. Reinstall the connectors, components etc.
  3. Start the engine to perform the diagnosis. Read off the diagnostic status and trouble status for the diagnostic trouble code. Check that the diagnosis is "Implemented" and that the trouble status is "No malfunction found". If the trouble status is "Malfunction found", this indicates defective function.

Trouble status shows "No malfunction found"?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S31147807872012060500000)
  1. Start the engine and let it idle for approx. 3-5 minutes to perform the diagnosis. Check if the malfunction is permanent or intermittent by reading off the diagnostic trouble code's status when the diagnostic status is "Implemented". If the trouble status is "Malfunction found", this indicates that the malfunction is permanent. If the trouble status is "No malfunction found", this indicates that the malfunction is intermittent.
  1. Continue Refer to «CHECKING COMPONENTS»(ref-476784-S26375139542012060500000)
CAUTIONDo not apply rust solvent spray or grease to the heated oxygen sensor's (HO2S) connector.

Check the rear heated oxygen sensor connector (bank 1). Check for contact resistance and oxidation.

Check the cable between Engine Control Module (ECM) #A41 (#A41) and heated oxygen sensor #4 for contact resistance and oxidation in connections, open circuit and short-circuit to ground.

If the above troubleshooting does not solve the problem, try a new heated oxygen sensor.

Remedy as necessary.

Other information

  1. see «CONNECTING THE BREAKOUT BOX»(ref-476691-S27857399862012060500000)
  2. see «SIGNAL SPECIFICATION, ENGINE CONTROL MODULE (ECM)»(ref-476694-S30016655152012060500000)
  3. see «HEATED OXYGEN SENSOR (HO2S), REPLACING»(ref-476768-S40343228252012060500000)
  4. see «CHECKING WIRING AND TERMINALS»(ref-476689-S17283010372012060500000)
  1. Continue Refer to «VERIFICATION»(ref-476784-S42166182062012060500000)

HINT: After repairing, it is necessary to check that the malfunction has been fixed.

  1. Ignition off
  2. Reinstall the connectors, components etc.
  3. Start the engine to perform the diagnosis. Read off the diagnostic status and trouble status for the diagnostic trouble code. Check that the diagnosis is "Implemented" and that the trouble status is "No malfunction found". If the trouble status is "Malfunction found", this indicates defective function.

Trouble status shows "No malfunction found"?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S17441504052012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

  1. Start the engine and let it idle for approx. 3-5 minutes to perform the diagnosis. Check if the malfunction is permanent or intermittent by reading off the diagnostic trouble code's status when the diagnostic status is "Implemented". If the trouble status is "Malfunction found", this indicates that the malfunction is permanent. If the trouble status is "No malfunction found", this indicates that the malfunction is intermittent.
  1. Continue Refer to «CHECKING COMPONENTS»(ref-476784-S13752724682012060500000)
CAUTIONDo not apply rust solvent spray or grease to the heated oxygen sensor's (HO2S) connector.

Check the signal cable between the Engine Control Module (ECM) and rear heated oxygen sensor for short-circuiting to voltage.

If the above troubleshooting does not solve the problem, try a new heated oxygen sensor.

Remedy as necessary.

Other information

  1. see «CONNECTING THE BREAKOUT BOX»(ref-476691-S30437390172012060500000)
  2. see «SIGNAL SPECIFICATION»(ref-476694-S14228516802012060500000)
  3. see «OXYGEN SENSOR (CATALYST MONITOR SENSOR)»(ref-476768-S18546887202012060500000)
  4. see «CHECKING WIRING AND TERMINALS»(ref-476689-S17655503092012060500000)
  1. Continue Refer to «VERIFICATION»(ref-476784-S08656391682012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

HINT: After repairing, it is necessary to check that the malfunction has been fixed.

  1. Ignition off
  2. Reinstall the connectors, components etc.
  3. Start the engine to perform the diagnosis. Read off the diagnostic status and trouble status for the diagnostic trouble code. Check that the diagnosis is "Implemented" and that the trouble status is "No malfunction found". If the trouble status is "Malfunction found", this indicates defective function.

Trouble status shows "No malfunction found"?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S21413072782012060500000)
  1. Start the engine and let it idle for approx. 3-5 minutes to perform the diagnosis. Check if the malfunction is permanent or intermittent by reading off the diagnostic trouble code's status when the diagnostic status is "Implemented". If the trouble status is "Malfunction found", this indicates that the malfunction is permanent. If the trouble status is "No malfunction found", this indicates that the malfunction is intermittent.
  1. Continue Refer to «CHECKING COMPONENTS»(ref-476784-S13330870892012060500000)
CAUTIONDo not apply rust solvent spray or grease to the heated oxygen sensor's (HO2S) connector.

Check the cable between the Engine Control Module (ECM) terminal #A41 (#A41) and heated oxygen sensor terminal #4 (bank 1). Check for a short-circuit to supply voltage.

If the above troubleshooting does not solve the problem, try a new heated oxygen sensor.

Remedy as necessary.

Other information

  1. see «CONNECTING THE BREAKOUT BOX»(ref-476691-S27857399862012060500000)
  2. see «SIGNAL SPECIFICATION, ENGINE CONTROL MODULE (ECM)»(ref-476694-S30016655152012060500000)
  3. see «HEATED OXYGEN SENSOR (HO2S), REPLACING»(ref-476768-S40343228252012060500000)
  4. see «CHECKING WIRING AND TERMINALS»(ref-476689-S17283010372012060500000)
  1. Continue Refer to «VERIFICATION»(ref-476784-S40022255002012060500000)

HINT: After repairing, it is necessary to check that the malfunction has been fixed.

  1. Ignition off
  2. Reinstall the connectors, components etc.
  3. Start the engine to perform the diagnosis. Read off the diagnostic status and trouble status for the diagnostic trouble code. Check that the diagnosis is "Implemented" and that the trouble status is "No malfunction found". If the trouble status is "Malfunction found", this indicates defective function.

Trouble status shows "No malfunction found"?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S17758634522012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

  1. Start the engine and allow it to idle for 5 minutes. Check whether the fault is permanent or intermittent. Read off the diagnostic trouble code (DTC) fault status when the diagnostic status is "Completed". The fault is permanent if the fault status is "Fault found". If the status is "No fault found" this indicates that the fault is intermittent.
  1. Continue Refer to «CHECKING COMPONENTS»(ref-476784-S29596233542012060500000)
CAUTIONDo not apply rust solvent spray or grease to the heated oxygen sensor (HO2S) connector.

Check the connector for the rear heated oxygen sensor (bank 2) for contact resistance and oxidation.

Check the signal cable between engine control module (ECM) and rear heated oxygen sensor for contact resistance and oxidation in the connections, open circuit and short-circuit to ground.

Try a new heated oxygen sensor (HO2S) if the above fault-tracing does not remedy the fault.

Remedy as necessary.

Other information

  1. see «CONNECTING THE BREAKOUT BOX»(ref-476691-S30437390172012060500000)
  2. see «SIGNAL SPECIFICATION»(ref-476694-S14228516802012060500000)
  3. see «OXYGEN SENSOR (CATALYST MONITOR SENSOR)»(ref-476768-S18546887202012060500000)
  4. see «CHECKING WIRING AND TERMINALS»(ref-476689-S17655503092012060500000)
  1. Continue Refer to «VERIFICATION»(ref-476784-S30509377502012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

HINT: After repairing, it is necessary to check that the malfunction has been fixed.

  1. Ignition off
  2. Reinstall the connectors, components etc.
  3. Start the engine to perform the diagnosis. Read off the diagnostic status and trouble status for the diagnostic trouble code. Check that the diagnosis is "Implemented" and that the trouble status is "No malfunction found". If the trouble status is "Malfunction found", this indicates defective function.

Trouble status shows "No malfunction found"?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S01879878662012060500000)
  1. Start the engine and let it idle for approx. 3-5 minutes to perform the diagnosis. Check if the malfunction is permanent or intermittent by reading off the diagnostic trouble code's status when the diagnostic status is "Implemented". If the trouble status is "Malfunction found", this indicates that the malfunction is permanent. If the trouble status is "No malfunction found", this indicates that the malfunction is intermittent.
  1. Continue Refer to «CHECKING COMPONENTS»(ref-476784-S09808886642012060500000)
CAUTIONDo not apply rust solvent spray or grease to the heated oxygen sensor's (HO2S) connector.

Check the connector for the rear heated oxygen sensor (bank 2) for contact resistance and oxidation.

Check the cable between Engine Control Module (ECM) #A40 (#A40) and heated oxygen sensor #4 for contact resistance and oxidation in connections, open circuit and short-circuit to ground.

If the above troubleshooting does not solve the problem, try a new heated oxygen sensor.

Remedy as necessary.

Other information

  1. see «CONNECTING THE BREAKOUT BOX»(ref-476691-S27857399862012060500000)
  2. see «SIGNAL SPECIFICATION, ENGINE CONTROL MODULE (ECM)»(ref-476694-S30016655152012060500000)
  3. see «HEATED OXYGEN SENSOR (HO2S), REPLACING»(ref-476768-S40343228252012060500000)
  4. see «CHECKING WIRING AND TERMINALS»(ref-476689-S17283010372012060500000)
  1. Continue Refer to «VERIFICATION»(ref-476784-S09044571162012060500000)

HINT: After repairing, it is necessary to check that the malfunction has been fixed.

  1. Ignition off
  2. Reinstall the connectors, components etc.
  3. Start the engine to perform the diagnosis. Read off the diagnostic status and trouble status for the diagnostic trouble code. Check that the diagnosis is "Implemented" and that the trouble status is "No malfunction found". If the trouble status is "Malfunction found", this indicates defective function.

Trouble status shows "No malfunction found"?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S26924489242012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

  1. Start the engine and let it idle for approx. 3-5 minutes to perform the diagnosis. Check if the malfunction is permanent or intermittent by reading off the diagnostic trouble code's status when the diagnostic status is "Implemented". If the trouble status is "Malfunction found", this indicates that the malfunction is permanent. If the trouble status is "No malfunction found", this indicates that the malfunction is intermittent.
  1. Continue Refer to «CHECKING COMPONENTS»(ref-476784-S19460483112012060500000)
CAUTIONDo not apply rust solvent spray or grease to the heated oxygen sensor's (HO2S) connector.

Check the signal cable between the Engine Control Module (ECM) and rear heated oxygen sensor for short-circuiting to voltage.

If the above troubleshooting does not solve the problem, try a new heated oxygen sensor.

Remedy as necessary.

Other information

  1. see «CONNECTING THE BREAKOUT BOX»(ref-476691-S30437390172012060500000)
  2. see «SIGNAL SPECIFICATION»(ref-476694-S14228516802012060500000)
  3. see «OXYGEN SENSOR (CATALYST MONITOR SENSOR)»(ref-476768-S18546887202012060500000)
  4. see «CHECKING WIRING AND TERMINALS»(ref-476689-S17655503092012060500000)
  1. Continue Refer to «VERIFICATION»(ref-476784-S42544894232012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

HINT: After repairing, it is necessary to check that the malfunction has been fixed.

  1. Ignition off
  2. Reinstall the connectors, components etc.
  3. Start the engine to perform the diagnosis. Read off the diagnostic status and trouble status for the diagnostic trouble code. Check that the diagnosis is "Implemented" and that the trouble status is "No malfunction found". If the trouble status is "Malfunction found", this indicates defective function.

Trouble status shows "No malfunction found"?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S42692316112012060500000)
  1. Start the engine and let it idle for approx. 3-5 minutes to perform the diagnosis. Check if the malfunction is permanent or intermittent by reading off the diagnostic trouble code's status when the diagnostic status is "Implemented". If the trouble status is "Malfunction found", this indicates that the malfunction is permanent. If the trouble status is "No malfunction found", this indicates that the malfunction is intermittent.
  1. Continue Refer to «CHECKING COMPONENTS»(ref-476784-S23413246102012060500000)
CAUTIONDo not apply rust solvent spray or grease to the heated oxygen sensor's (HO2S) connector.

Check the cable between the Engine Control Module (ECM) terminal #A40 (#A40) and rear heated oxygen sensor terminal #4 (bank 2). Check for a short-circuit to supply voltage.

If the above troubleshooting does not solve the problem, try a new heated oxygen sensor.

Remedy as necessary.

Other information

  1. see «CONNECTING THE BREAKOUT BOX»(ref-476691-S27857399862012060500000)
  2. see «SIGNAL SPECIFICATION, ENGINE CONTROL MODULE (ECM)»(ref-476694-S30016655152012060500000)
  3. see «HEATED OXYGEN SENSOR (HO2S), REPLACING»(ref-476768-S40343228252012060500000)
  4. see «CHECKING WIRING AND TERMINALS»(ref-476689-S17283010372012060500000)
  1. Continue Refer to «VERIFICATION»(ref-476784-S24205370332012060500000)

HINT: After repairing, it is necessary to check that the malfunction has been fixed.

  1. Ignition off
  2. Reinstall the connectors, components etc.
  3. Start the engine to perform the diagnosis. Read off the diagnostic status and trouble status for the diagnostic trouble code. Check that the diagnosis is "Implemented" and that the trouble status is "No malfunction found". If the trouble status is "Malfunction found", this indicates defective function.

Trouble status shows "No malfunction found"?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S01605963472012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

see FAULT-TRACING INFORMATION

see FAULT-TRACING INFORMATION

see FAULT-TRACING INFORMATION

see FAULT-TRACING INFORMATION

HINT: After carrying out the repair, check that the fault has been remedied.

Scheme 435

Scheme 435: VERIFICATION
Scheme 435: VERIFICATION
  1. Engine idling
  2. Reinstall the connectors, components etc.
  3. Ignition on. Activate read-out of the throttle damper's current position and the throttle damper's reference value. Check that both signals follow each other at different RPM and movements of the throttle disc.

Do the signals follow each other?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S31353183512012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

CHECKING COMPONENTS AND CONNECTIONS

  1. Engine idling
  2. Activate read-out of the throttle damper's current position and the throttle damper's reference value.
  3. Check that both signals follow each other at different RPM and movements of the throttle disc.
  4. Ignition off. Check if the throttle unit is blocked. Press the throttle disc to check for jamming. Clean the throttle unit if necessary. Other information see «THROTTLE BODY»(ref-476768-S33718197072012060500000)
  1. Continue Refer to «VERIFICATION»(ref-476784-S00607454652012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Engine idling
  2. Reinstall the connectors, components etc.
  3. Ignition on. Activate read-out of the throttle damper's current position and the throttle damper's reference value. Check that both signals follow each other at different RPM and movements of the throttle disc.

Do the signals follow each other?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S11532011452012060500000)

see FAULT-TRACING

see FAULT-TRACING

see FAULT-TRACING

see FAULT-TRACING

see FAULT-TRACING INFORMATION

see FAULT-TRACING INFORMATION

see FAULT-TRACING INFORMATION

The diagnostic trouble code (DTC) is an information trouble code and never occurs alone. Therefore fault-trace for another diagnostic trouble code (DTC).

see FAULT-TRACING

see FAULT-TRACING

see FAULT-TRACING INFORMATION

see FAULT-TRACING INFORMATION

see FAULT-TRACING INFORMATION

see FAULT-TRACING INFORMATION

see FAULT-TRACING INFORMATION

see FAULT-TRACING INFORMATION

see FAULT-TRACING INFORMATION

see FAULT-TRACING INFORMATION

  1. Ignition on Check if the malfunction is permanent or intermittent by activating readout of brake pedal position (via CAN) and position of the brake light switch. Check that the parameters match. Pressed brake pedal shall activate the signal from the brake light switch. If the signals do not match, this indicates that the malfunction is permanent. If the signals match, this indicates that the malfunction is intermittent and not active right now.
  1. Continue Refer to «CHECKING COMPONENTS AND WIRING»(ref-476784-S13737780342012060500000)

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off
  2. Reinstall the connectors, components etc.
  3. Ignition on Activate readout of brake pedal position (via CAN) and the brake light switch signal. Check that the value for brake pedal position at unaffected brake pedal is approx. 0 % and when the pedal is fully pressed down approx. 55 % when the engine is running. Also check that the brake light switch is activated when the pedal is pressed down. HINT: The brake pedal position sensor's signal is sent to engine control module (ECM) from brake control module (BCM) via CAN.

Do the values match?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S18446455792012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

see FAULT-TRACING

see FAULT-TRACING

see FAULT-TRACING

see FAULT-TRACING

see FAULT-TRACING

see FAULT-TRACING

The diagnostic trouble code (DTC) is an information trouble code and never occurs alone. Therefore fault-trace for another diagnostic trouble code (DTC).

see FAULT-TRACING INFORMATION

  1. Ignition on Read the diagnostic status and fault status for the diagnostic trouble code by selecting the diagnostic trouble code in the list. Check if the malfunction is permanent or intermittent by reading off the diagnostic trouble code's status when the diagnostic status is "Implemented". If the trouble status is "Malfunction found", this indicates that the malfunction is permanent. If the trouble status is "No malfunction found", this indicates that the malfunction is intermittent and not active right now. NOTE: Trouble status cannot go from "Malfunction found" to "No malfunction found" in the same operating cycle.
  1. Continue Refer to «CHECKING COMPONENTS AND WIRING»(ref-476784-S24306847392012060500000)

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off
  2. Reinstall the connectors, components etc.
  3. Ignition on Activate throttle position read off. Check that the throttle angle and both sensor values correspond.

Are the values within their permitted range?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S09531931652012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

  1. Ignition on Read the diagnostic status and fault status for the diagnostic trouble code by selecting the diagnostic trouble code in the list. Check if the malfunction is permanent or intermittent by reading off the diagnostic trouble code's status when the diagnostic status is "Implemented". If the trouble status is "Malfunction found", this indicates that the malfunction is permanent. If the trouble status is "No malfunction found", this indicates that the malfunction is intermittent and not active right now. NOTE: Trouble status cannot go from "Malfunction found" to "No malfunction found" in the same operating cycle.
  1. Continue Refer to «CHECKING COMPONENTS AND WIRING»(ref-476784-S37546539562012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off
  2. Reinstall the connectors, components etc.
  3. Ignition on Activate throttle position read off. Check that the throttle angle and both sensor values correspond.

Are the values within their permitted range?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S25247828702012060500000)

see FAULT-TRACING

  1. Ignition on.
  2. Activate reading off the position of the throttle.
  3. Check that read-off throttle position shows reasonable values at different deployments.
  4. Ignition off. Check if the throttle unit is blocked. Press the throttle disc to check for jamming. Clean the throttle unit if necessary. HINT: The diagnostic trouble code (DTC) can be stored as the adaptation value for the throttle unit is incorrect. To reset this adaptation, lift the battery pole for a few seconds, refit it and turn the ignition to ignition position II for at least 5 seconds. Other information see «THROTTLE BODY»(ref-476768-S33718197072012060500000) see «ENGINE CONTROL MODULE (ECM)»(ref-476695-S30933262542012060500000)
  1. Continue Refer to «VERIFICATION»(ref-476784-S03979317672012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off
  2. Reinstall the connectors, components etc.
  3. Ignition on Activate readout of electronic throttle unit's position. Check that read-off throttle position shows reasonable values at different deployments.

Are these values within their permitted ranges?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S38393312722012060500000)

see FAULT-TRACING

  1. Ignition on.
  2. Activate reading off the position of the throttle.
  3. Check that read-off throttle position shows reasonable values at different deployments.
  4. Ignition off. Check if the throttle unit is blocked. Press the throttle disc to check for jamming. Clean the throttle unit if necessary. HINT: The diagnostic trouble code (DTC) can be stored as the adaptation value for the throttle unit is incorrect. To reset this adaptation, lift the battery pole for a few seconds, refit it and turn the ignition to ignition position II for at least 5 seconds. Other information see «THROTTLE BODY (TB), CLEANING»(ref-476750-S21092280202012060500000) see «THROTTLE BODY (ELECTRONIC THROTTLE MODULE (ETM)), REPLACING»(ref-476768-S25810669542012060500000) see «ENGINE CONTROL MODULE (ECM), REPLACING»(ref-476695-S24530329132012060500000)
  1. Continue Refer to «VERIFICATION»(ref-476784-S13431352752012060500000)

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off
  2. Reinstall the connectors, components etc.
  3. Ignition on Activate readout of electronic throttle unit's position. Check that read-off throttle position shows reasonable values at different deployments.

Are these values within their permitted ranges?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S13821907562012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

The diagnostic trouble code indicates that CAN-communication between engine control module (ECM) and central electronic module (CEM) is missing.

Among others, the code may be caused by

  1. Engine control module (ECM) or central electronic module (CEM) contains no software for this vehicle.
  2. Open circuit in CAN-communication between central electronic module (CEM) and engine control module (ECM)
  3. Programmed engine control module (ECM) or central electronic module (CEM) has been moved from one vehicle to another.

HINT: Read off diagnostic trouble codes in central electronic module (CEM).

  1. Continue Refer to «VERIFICATION»(ref-476784-S40305187482012060500000)

HINT: After repairing, it is necessary to check that the malfunction has been fixed.

  1. Ignition off
  2. Reinstall connector, components, etc.
  3. Start the engine.

Did engine start?

  1. YES OKAY: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S42838555642012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

see FAULT-TRACING INFORMATION

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off
  2. Reconnect the connectors, components, etc.
  3. Ignition on
  4. Read off the gear position sensor's signals. Check that the gear position sensor's signals are correct. Signal via direct-connected cable and signal via CAN-communication shall match each other as well as with selected gear position.

Is the function OK?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S32384300912012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

see FAULT-TRACING

see FAULT-TRACING

  1. Ignition on Read the diagnostic status and fault status for the diagnostic trouble code by selecting the diagnostic trouble code in the list. Check if the malfunction is permanent or intermittent by reading off the diagnostic trouble code's status when the diagnostic status is "Implemented". If the trouble status is "Malfunction found", this indicates that the malfunction is permanent. If the trouble status is "No malfunction found", this indicates that the malfunction is intermittent and not active right now. NOTE: Trouble status cannot go from "Malfunction found" to "No malfunction found" in the same operating cycle.
  1. Continue Refer to «CHECKING COMPONENTS AND WIRING»(ref-476784-S02191763142012060500000)

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off
  2. Reinstall the connectors, components etc.
  3. Ignition on Activate throttle position read off. Check that the throttle angle and both sensor values correspond.

Are the values within their permitted range?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S30924915762012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

see FAULT-TRACING

see FAULT-TRACING

  1. Ignition on Read the diagnostic status and fault status for the diagnostic trouble code by selecting the diagnostic trouble code in the list. Check if the malfunction is permanent or intermittent by reading off the diagnostic trouble code's status when the diagnostic status is "Implemented". If the trouble status is "Malfunction found", this indicates that the malfunction is permanent. If the trouble status is "No malfunction found", this indicates that the malfunction is intermittent and not active right now. NOTE: Trouble status cannot go from "Malfunction found" to "No malfunction found" in the same operating cycle.
  1. Continue Refer to «CHECKING COMPONENTS AND WIRING»(ref-476784-S03400379132012060500000)

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off
  2. Reinstall the connectors, components etc.
  3. Ignition on Activate throttle position read off. Check that the throttle angle and both sensor values correspond.

Are the values within their permitted range?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S01033974852012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

see FAULT-TRACING

see FAULT-TRACING

No fault-tracing has been developed for this diagnostic trouble code (DTC). The diagnostic trouble code (DTC) for this fault is stored first in the brake control module (BCM), then in the engine control module (ECM). This diagnostic trouble code (DTC) cannot be erased before the diagnostic trouble code (DTC) in the brake control module (BCM) has been remedied and erased.

First read off the diagnostic trouble codes (DTCs) in the brake control module (BCM). Fault-trace and remedy as necessary. This diagnostic trouble code (DTC) can then be erased.

  1. Ignition on. Activate the upper primary actuator. Check if the fault is permanent or intermittent. Check that the throttle unit is activated. HINT: It may be necessary to remove the throttle unit from the induction pipe to ensure proper functionality. The fault is permanent if the function is faulty. If the function is correct, this is an indication that the fault was present previously but is not active at the moment, i. e. an intermittent fault.
  1. Continue Refer to «CHECKING THE COMPONENT AND WIRING»(ref-476784-S39704217172012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off.
  2. Reinstall the connectors, components etc.
  3. Ignition on. Activate the upper primary actuator. Check that the throttle unit is activated. HINT: It may be necessary to remove the throttle unit from the induction pipe to ensure proper functionality.

Is the function OK?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S23048952562012060500000)

see FAULT-TRACING

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off
  2. Reconnect the connectors, components, etc.
  3. Start the engine.
  4. Test drive the car on the road with smooth acceleration so that the engine speed (RPM) exceeds 3500 RPM. Repeat the procedure a couple of times so that the engine control module (ECM) can carry out diagnostics.
  5. Connect the VCT2000 (or appropriate scan tool) to the data link connector without switching off the engine.
  6. Read the diagnostic status and fault status for the diagnostic trouble code by selecting the diagnostic trouble code in the list. NOTE: If the engine is switched off, the stored fault status will be erased and the test drive will have to be repeated. Check the fault status for the diagnostic trouble code when the scan is "Implemented". When the function is correct the fault status should be "No fault found" when the scan is implemented.

Is the function OK?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S31868722882012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

  1. Ignition on. Activate the lower secondary actuator. Check if the fault is permanent or intermittent. Check that the throttle unit is activated. HINT: It may be necessary to remove the throttle unit from the induction pipe to ensure proper functionality. The fault is permanent if the function is faulty. If the function is correct, this is an indication that the fault was present previously but is not active at the moment, i. e. an intermittent fault.
  1. Continue Refer to «CHECKING THE COMPONENT AND WIRING»(ref-476784-S04154304472012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off.
  2. Reinstall the connectors, components etc.
  3. Ignition on. Activate the lower secondary actuator. Check that the throttle unit is activated. HINT: It may be necessary to remove the throttle unit from the induction pipe to ensure proper functionality.

Is the function OK?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S06826654572012060500000)

see FAULT-TRACING

see FAULT-TRACING

see FAULT-TRACING

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off
  2. Reconnect the connectors, components, etc.
  3. Start the engine.
  4. Test drive the car on the road with smooth acceleration so that the engine speed (RPM) exceeds 3500 RPM. Repeat the procedure a couple of times so that the engine control module (ECM) can carry out diagnostics.
  5. Connect the VCT2000 (or appropriate scan tool) to the data link connector without switching off the engine.
  6. Read the diagnostic status and fault status for the diagnostic trouble code by selecting the diagnostic trouble code in the list. NOTE: If the engine is switched off, the stored fault status will be erased and the test drive will have to be repeated. Check the fault status for the diagnostic trouble code when the scan is "Implemented". When the function is correct the fault status should be "No fault found" when the scan is implemented.

Is the function OK?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S34795035632012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

see FAULT-TRACING

see FAULT-TRACING

No fault-tracing has been developed for this diagnostic trouble code (DTC). The diagnostic trouble code (DTC) for this fault is stored first in the central electronic module (CEM), then in the engine control module (ECM). This diagnostic trouble code (DTC) can not be erased before the diagnostic trouble codes (DTC) in the central electronic module (CEM) has been remedied and erased.

First read off the diagnostic trouble codes (DTCs) in the central electronic module (CEM). Fault-trace and remedy as necessary. This diagnostic trouble code (DTC) can then be erased.

Check relevant connectors for contact resistance and corrosion.

Check the exhaust system for air leakage.

HINT: Both a damaged front and/or a damaged rear heated oxygen sensor may be the cause of the stored diagnostic trouble code (DTC).

HINT: Check other stored DTCs to draw relevant conclusions about which heat oxygen sensor(s) should be replaced, this is to avoid incorrect replacement of components.

Remedy as necessary.

Other information

  1. see «CHECKING FOR AIR LEAKAGE IN THE EXHAUST SYSTEM»(ref-494824-S07275287112012081600000)
  2. see «HEATED OXYGEN SENSOR (HO2S), REPLACING»(ref-476768-S40343228252012060500000)
  1. Continue Refer to «VERIFICATION»(ref-476784-S37315718272012060500000)

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Read off the diagnostic status and the fault status for the diagnostic trouble code (DTC).
  2. Check that the diagnosis is Performed. HINT: To enable performing diagnostic status, special conditions must be fulfilled. These conditions are described in diagnostic trouble code (DTC) information for each diagnostic trouble code (DTC). If the function is correct, the fault status must be No fault found when the diagnostic is complete.

Is the function OK?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S25257149992012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

see FAULT-TRACING

see FAULT-TRACING

see FAULT-TRACING INFORMATION

see FAULT-TRACING INFORMATION

see FAULT-TRACING INFORMATION

see FAULT-TRACING INFORMATION

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off
  2. Reinstall the connectors, components etc.
  3. Ignition on Activate readout of electronic throttle unit's position. Check that read-off throttle position shows reasonable values at different deployments.

Are these values within their permitted ranges?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S29895170342012060500000)

see FAULT-TRACING

  1. Ignition on.
  2. Activate reading off the position of the throttle.
  3. Check that read-off throttle position shows reasonable values at different deployments.
  4. Ignition off. Check cables between Engine Control Module (ECM) and Throttle Module for short-circuit to voltage or ground. Check the Throttle Module electrically by measuring between casing and connector. Remedy as necessary. Other information see «CONNECTING THE BREAKOUT BOX»(ref-476691-S27857399862012060500000) see «SIGNAL SPECIFICATION, ENGINE CONTROL MODULE (ECM)»(ref-476694-S30016655152012060500000) see «THROTTLE BODY (ELECTRONIC THROTTLE MODULE (ETM)), REPLACING»(ref-476768-S25810669542012060500000) see «ENGINE CONTROL MODULE (ECM), REPLACING»(ref-476695-S24530329132012060500000) see «CHECKING WIRING AND TERMINALS»(ref-476689-S17655503092012060500000)
  1. Continue Refer to «VERIFICATION»(ref-476784-S19676344712012060500000)

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off
  2. Reinstall the connectors, components etc.
  3. Ignition on Activate readout of electronic throttle unit's position. Check that read-off throttle position shows reasonable values at different deployments.

Are these values within their permitted ranges?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S22516455992012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

  1. Ignition on Check if the malfunction is permanent or intermittent by activating readout of the accelerator pedal position sensor's signals. Check that the value for both signals at unaffected accelerator pedal is approx. 8% and when the pedal is fully pressed down approx. 82%. If the signal is incorrect, this indicates that the malfunction is permanent. If the signal is correct, this indicates that the malfunction is intermittent and not active right now.
  1. Continue Refer to «CHECKING COMPONENTS AND WIRING»(ref-476784-S31291635182012060500000)

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off
  2. Reinstall the connectors, components etc.
  3. Ignition on Activate readout of the accelerator pedal position sensor's signals. Check that the value for both signals at unaffected accelerator pedal is approx. 8% and when the pedal is fully pressed down approx. 82%.

Is the function OK?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S29336263182012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

see FAULT-TRACING

see FAULT-TRACING

see FAULT-TRACING INFORMATION

see FAULT-TRACING

see FAULT-TRACING

CHECKING COMPONENT AND CONNECTIONS

  1. Ignition on
  2. Activate readout of electronic throttle unit's position.
  3. Check that read-off throttle position shows reasonable values at different deployments.
  4. Ignition off Check engine control module ECM) and the electronic throttle unit's connector for contact resistance and oxidation. Check if the electronic throttle unit is blocked by an object and press on the throttle disc to, see if it binds. Clean the electronic throttle unit if needed. Other information see «CONNECTING THE BREAKOUT BOX»(ref-476691-S27857399862012060500000) see «SIGNAL SPECIFICATION, ENGINE CONTROL MODULE (ECM)»(ref-476694-S30016655152012060500000) see «THROTTLE BODY (TB), CLEANING»(ref-476750-S21092280202012060500000) see «THROTTLE BODY (ELECTRONIC THROTTLE MODULE (ETM)), REPLACING»(ref-476768-S25810669542012060500000) see «CHECKING WIRING AND TERMINALS»(ref-476689-S17283010372012060500000)
  1. Continue Refer to «VERIFICATION»(ref-476784-S05032951692012060500000)

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off
  2. Reinstall the connectors, components etc.
  3. Ignition on Activate readout of electronic throttle unit's position. Check that read-off throttle position shows reasonable values at different deployments.

Are these values within their permitted ranges?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S11988364622012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

see FAULT-TRACING

see FAULT-TRACING

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off
  2. Reinstall the connectors, components etc.
  3. Ignition on Read off the pressure sensor signal for intake pressure and the atmospheric pressure sensor signal using the VCT2000 (or appropriate scan tool). Check that the values correspond. The atmospheric pressure sensor signal is used as a reference value in this check.

Is the value within its permitted range?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S20870840122012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off
  2. Reinstall the connectors, components etc.
  3. Ignition on Read off the pressure sensor signal for intake pressure and the atmospheric pressure sensor signal using the VCT2000 (or appropriate scan tool). Check that the values correspond. The atmospheric pressure sensor signal is used as a reference value in this check.

Is the value within its permitted range?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476784-S29348116592012060500000)

The fault should have been detected and remedied. As this is not the case fault-tracing has failed.

Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

FAULT-TRACING ECM-P222700

see FAULT-TRACING ECM-P222700

More articles — Engine Control Module (ECM) Diagnostic Trouble Codes - 12 of 13