Engine Control Module (ECM) Diagnostic Trouble Codes - 1 of 3: Other — Engine Control Module (ECM) Diagnostic Trouble Codes - 1 of 3 — Testing & Diagnostics

Verification

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

Scheme 99

Scheme 99: Verification

Scheme 100

Scheme 101

Reconnect the connectors, reinstall components etc.
Connect VCT2000
Start the engine. Let the engine idle until it reaches operating temperature. Read off the signal for the front heated oxygen sensor (HO2S).

Does the value oscillate between approximately 0 and 1 V?

YES Refer to «Resetting the adaptation»(ref-441343-S41765831132011121500000)
NO Refer to «Information»(ref-441343-S09824186462011121500000)

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.

Signal missing. Permanent fault

See Signal missing. Permanent fault

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

Signal too high. Intermittent fault

See Signal too high. Intermittent fault

Defective heated oxygen sensor (HO2S)

Try a new heated oxygen sensor (HO2S). See Replace the front heated oxygen sensor (HO2S) .

Continue Refer to «Verification»(ref-441343-S05162922172011121500000)

Checking the signal cable

Check the cable between heated oxygen sensor (HO2S) connector terminal #4 and engine control module (ECM) connector terminal #45. Check for an open-circuit according to Open-circuit, permanent faults . Check for a short-circuit to supply voltage according to Short-circuit to supply voltage. Permanent faults .

Remedy as necessary.

Continue Refer to «Verification»(ref-441343-S05162922172011121500000)

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

Reconnect the connectors, reinstall components etc.
Connect VCT2000
Start the engine. Let the engine idle until it reaches operating temperature. Read off the signal for the front heated oxygen sensor (HO2S).

Does the value oscillate between approximately 0 and 1 V?

YES Refer to «Resetting the adaptation»(ref-441343-S41658395252011121500000)
NO Refer to «Information»(ref-441343-S25655020082011121500000)

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.

Signal too high. Permanent fault

See Signal too high. Permanent fault

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

Signal too low. Intermittent fault

See Signal too low. Intermittent fault

Front heated oxygen sensor (HO2S) connector disconnected
Ignition on. Connect a voltmeter between connector terminal #4 on the heated oxygen sensor (HO2S) (control module side) and ground.

The voltmeter should read approximately 0.5 V.

OK Refer to «Checking intake system»(ref-441343-S00236235382011121500000)
NOT OK Refer to «Checking the signal cable»(ref-441343-S32643375582011121500000)

Try a new heated oxygen sensor (HO2S). See Replace the front heated oxygen sensor (HO2S) .

Continue Refer to «Verification»(ref-441343-S32441166642011121500000)

Check the cable between heated oxygen sensor (HO2S) connector terminal #4 and engine control module (ECM) connector terminal #45. Check for a short-circuit to ground according to Short-circuit to ground, permanent faults .

Remedy as necessary.

Continue Refer to «Verification»(ref-441343-S32441166642011121500000)

Checking intake system

Check the intake system for air leakage according to intake system/leak test .

Was a fault detected?

YES Refer to «Verification»(ref-441343-S32441166642011121500000)
NO Refer to «Defective heated oxygen sensor (HO2S)»(ref-441343-S09191995522011121500000)

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

Reconnect the connectors, reinstall components etc.
Connect VCT2000
Start the engine. Let the engine idle until it reaches operating temperature. Read off the signal for the front heated oxygen sensor (HO2S).

Does the value oscillate between approximately 0 and 1 V?

YES Refer to «Resetting the adaptation»(ref-441343-S11883237342011121500000)
NO Refer to «Information»(ref-441343-S00689822942011121500000)

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.

Signal too low. Permanent fault

See Signal too low. Permanent fault

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

Signal missing. Intermittent fault

See Signal missing. Intermittent fault

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

Reinstall the components, reconnect the connectors etc.
Connect VCT2000
Start the engine and allow to idle for approximately 2 minutes. Check whether diagnostic trouble code (DTC) ECM-18 or ECM-1C has changed status to intermittent.

Is diagnostic trouble code (DTC) ECM-18 or ECM-1C intermittent?

YES VERIFIED: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S33219190772011121500000)

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.

Faulty signal. Permanent fault

See Faulty signal. Permanent fault

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

Faulty signal. Intermittent fault

See Faulty signal. Intermittent fault

Checking the power cable

Ignition off. Connect a voltmeter between connector terminal 1 on the heated oxygen sensor (HO2S) (engine control module (ECM) side) and ground. Ignition on.

The voltmeter should read battery voltage for 2 seconds immediately the ignition is switched on.

OK Refer to «Checking the signal cable»(ref-441343-S32964191882011121500000)
NOT OK Refer to «Checking the power cable»(ref-441343-S27299507862011121500000)

Ignition on. Connect a voltmeter between connector terminal 2 on the heated oxygen sensor (HO2S) (engine control module (ECM) side) and ground.

The voltmeter should read 3-5 V.

OK Refer to «Defective heated oxygen sensor (HO2S)»(ref-441343-S13062566232011121500000)
NOT OK Refer to «Checking the signal cable»(ref-441343-S07321179282011121500000)

Try a new heated oxygen sensor (HO2S) according to Replace the front heated oxygen sensor (HO2S) .

Continue Refer to «Verification»(ref-441343-S00945497352011121500000)

Scheme 102

Ignition off. Check the cable between heated oxygen sensor (HO2S) connector terminal 1 (control module side) and system relay 2/14 base # 3 for an open-circuit according to «Open-circuit, permanent faults»(ref-441291-S38831997352011121500000) . Remedy as necessary.

Continue Refer to «Verification»(ref-441343-S00945497352011121500000)

Ignition off. Check the cable between heated oxygen sensor (HO2S) connector terminal 2 (control module side) and engine control module (ECM) connector terminal 63 (ECM-18) or terminal 65 (ECM-1C) for an open-circuit according to «Open-circuit, permanent faults»(ref-441291-S38831997352011121500000) . Remedy as necessary.

Continue Refer to «Verification»(ref-441343-S00945497352011121500000)

Reconnect the connectors, reinstall components etc.
Connect VCT 2000
Start the engine. Check whether diagnostic trouble code (DTC) ECM-18 or ECM-1C has changed status to intermittent.

Is diagnostic trouble code (DTC) ECM-18 or ECM-1C intermittent?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S25590833632011121500000)

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.

Reinstall the components, reconnect the connectors etc.
Connect VCT2000
Start the engine and allow to idle for approximately 2 minutes. Check whether diagnostic trouble code (DTC) ECM-18 or ECM-1C has changed status to intermittent.

Is diagnostic trouble code (DTC) ECM-18 or ECM-1C intermittent?

YES VERIFIED: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S19625364162011121500000)

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 Signal missing. Permanent fault

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

See Signal too high. Intermittent fault

Ignition off
Disconnect the connectors for the front (ECM-18) and rear (ECM-1C) heated oxygen sensor (HO2S)
Ignition on. Connect a voltmeter between connector terminal 2 on the heated oxygen sensor (HO2S) (engine control module (ECM) side) and ground.

The voltmeter should read 3- 5 V.

OK Refer to «Defective heated oxygen sensor (HO2S)»(ref-441343-S18378018982011121500000)
NOT OK Refer to «Checking the signal cable»(ref-441343-S08471212792011121500000)

Ignition off. Check the cable between heated oxygen sensor (HO2S) connector terminal 2 (control module side) and engine control module (ECM) connector terminal 63 (ECM-18) or terminal 65 (ECM-1C) for a short-circuit to voltage according to «Short-circuit to ground, permanent faults»(ref-441291-S27984344722011121500000) . Remedy as necessary.

Continue Refer to «Verification»(ref-441343-S07649848012011121500000)

Try a new heated oxygen sensor (HO2S) according to Replace the front heated oxygen sensor (HO2S) .

Continue Refer to «Verification»(ref-441343-S07649848012011121500000)

Reconnect the connectors, reinstall components etc.
Connect VCT 2000
Start the engine. Check whether diagnostic trouble code (DTC) ECM-18 or ECM-1C has changed status to intermittent.

Is diagnostic trouble code (DTC) ECM-18 or ECM-1C intermittent?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S28702340702011121500000)

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.

Reinstall the components, reconnect the connectors etc.
Connect VCT2000
Start the engine and allow to idle for approximately 2 minutes. Check whether diagnostic trouble code (DTC) ECM-18 or ECM-1C has changed status to intermittent.

Is diagnostic trouble code (DTC) ECM-18 or ECM-1C intermittent?

YES VERIFIED: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S21099076872011121500000)

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 Signal too high. Permanent fault

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

See Signal too low. Intermittent fault

Checking the heated oxygen sensor (HO2S)

Ignition off
Disconnect the connectors for the front (ECM-18) and rear (ECM-1C) heated oxygen sensor (HO2S). Connect an ohmmeter between connector terminals 1 and 2 for the heated oxygen sensor (HO2S) (probe side).

The resistance should be 6-25 ohms depending on the temperature of the heated oxygen sensor (HO2S).

OK Refer to «Checking the signal cable»(ref-441343-S03510672882011121500000)
NOT OK Refer to «Defective heated oxygen sensor (HO2S)»(ref-441343-S03769494442011121500000)

Ignition off
Disconnect the connectors for the front (ECM-18) and rear (ECM-1C) heated oxygen sensor (HO2S). Check the cable between heated oxygen sensor (HO2S) connector terminal 2 (control module side) and engine control module (ECM) connector terminal 63 (ECM-18) or terminal 65 (ECM-1C) for a short-circuit to ground according to «Short-circuit to ground, permanent faults»(ref-441291-S27984344722011121500000) . Remedy as necessary.

Continue Refer to «Verification»(ref-441343-S21884357402011121500000)

Try a new heated oxygen sensor (HO2S) according to Replace the front heated oxygen sensor (HO2S) .

Continue Refer to «Verification»(ref-441343-S21884357402011121500000)

Reconnect the connectors, reinstall components etc.
Connect VCT 2000
Start the engine. Check whether diagnostic trouble code (DTC) ECM-18 or ECM-1C has changed status to intermittent.

Is diagnostic trouble code (DTC) ECM-18 or ECM-1C intermittent?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S29150964532011121500000)

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.

Reinstall the components, reconnect the connectors etc.
Connect VCT2000
Start the engine and allow to idle for approximately 2 minutes. Check whether diagnostic trouble code (DTC) ECM-18 or ECM-1C has changed status to intermittent.

Is diagnostic trouble code (DTC) ECM-18 or ECM-1C intermittent?

YES VERIFIED: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S30960396212011121500000)

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 Signal too low. Permanent fault

Replacing the component

Replace the rear heated oxygen sensor (HO2S) according to «Replacing lambda sonde rear»(ref-441343-S22908697222011121500000) .

Continue Refer to «Resetting the adaptation»(ref-441343-S37334391542011121500000)

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.

Information missing

Note. The design process related to this method was not ready in time for this CD-release. The information is planned to be included on the next CD-release.

See Signal missing. Permanent fault

Checking the connectors and components

Ignition off
Check the connectors for the rear heated oxygen sensor (HO2S) and control module. Check for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S00267239222011121500000)
Check the signal cable between terminal #4 for the rear heated oxygen sensor (HO2S) and control module terminal #44. Check for an intermittent open-circuit according to «Open-circuit, intermittent faults»(ref-441291-S39448265522011121500000)
Remedy as necessary. Other information: To connect the breakout box, see «Connecting the breakout box. EMS 2000»(ref-441291-S13587040122011121500000) To replace the rear heated oxygen sensor (HO2S), see «Replacing lambda sond rear»(ref-441339-S13064896142011121500000) .

Continue Refer to «Resetting the adaptation»(ref-441343-S02100015962011121500000)

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

See Signal missing. Intermittent fault

Ignition off
Check the connectors for the rear heated oxygen sensor (HO2S) and control module. Check for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S41448420802011121500000)
Check the signal cable between connector terminal #4 for the rear heated oxygen sensor (HO2S) and control module terminal #44. Check for an open-circuit according to «Open-circuit, permanent faults»(ref-441291-S38831997352011121500000)
Remedy as necessary. Other information: To connect the breakout box, see «Connecting the breakout box. EMS 2000»(ref-441291-S13587040122011121500000) For information about signals, see «Signal specification»(ref-441338-S16642011902011121500000) .

Continue Refer to «Checking diagnostic trouble codes (DTCs)»(ref-441343-S03891611212011121500000)

Replace the rear heated oxygen sensor (HO2S) according to «Replacing lambda sond rear»(ref-441339-S13064896142011121500000) .

Continue Refer to «Resetting the adaptation»(ref-441343-S07811631872011121500000)

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 Signal missing. Permanent fault

Checking connectors and components

Ignition off
Check the rear heated oxygen sensor (HO2S) and control module connectors for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S00267239222011121500000)
Check the signal cable between connector terminal 4 for the rear heated oxygen sensor (HO2S) and control module terminal 44 for an intermittent short-circuit to supply voltage according to «Short-circuit to supply voltage, intermittent faults»(ref-441291-S39506668312011121500000)
Remedy as necessary. Other information: To connect the breakout box, see «Connecting the breakout box. EMS 2000»(ref-441291-S13587040122011121500000) For information about signals, see «Signal specification»(ref-441338-S16642011902011121500000) To replace the rear heated oxygen sensor (HO2S), see «Replacing lambda sond rear»(ref-441339-S13064896142011121500000) .

Continue Refer to «Resetting fuel trim»(ref-441343-S39658657232011121500000)

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

See Signal too high. Intermittent fault

Ignition off
Check the connectors for the rear heated oxygen sensor (HO2S) and control module. Check for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S41448420802011121500000)
Check the signal cable between connector terminal #4 for the rear heated oxygen sensor (HO2S) and control module terminal #44. Check for a short-circuit to supply voltage according to «Short-circuit to supply voltage. Permanent faults»(ref-441291-S37119086802011121500000)
Remedy as necessary. Other information: To connect the breakout box, see «Connecting the breakout box. EMS 2000»(ref-441291-S13587040122011121500000) For information about signals, see «Signal specification»(ref-441338-S16642011902011121500000) .

Continue Refer to «Checking diagnostic trouble codes (DTCs)»(ref-441343-S34773302332011121500000)

Replace the rear heated oxygen sensor (HO2S) according to «Replacing lambda sond rear»(ref-441339-S13064896142011121500000) .

Continue Refer to «Resetting the adaptation»(ref-441343-S23087211592011121500000)

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 Signal too high. Permanent fault

Ignition off. Check the connectors for the rear heated oxygen sensor (HO2S) and control module for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S00267239222011121500000) . Check the intake system for leakage according to «intake system/leak test»(ref-441340-S18786781872011121500000) . Check the signal cable between rear heated oxygen sensor (HO2S) terminal #4 and control module terminal #44 for an intermittent short-circuit to ground according to «Short-circuit to ground, intermittent faults»(ref-441291-S16169375282011121500000) . Remedy as necessary. Other information: To connect the breakout box, see «Connecting the breakout box. EMS 2000»(ref-441291-S13587040122011121500000) To replace the rear heated oxygen sensor (HO2S), see «Replacing lambda sond rear»(ref-441339-S13064896142011121500000) .

Continue Refer to «Resetting the adaptation»(ref-441343-S24896600782011121500000)

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

See Signal too low. Intermittent fault

Ignition off. Check the connectors for the rear heated oxygen sensor (HO2S) and control module for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S41448420802011121500000) . Check the signal cable between rear heated oxygen sensor (HO2S) connector terminal #4 and control module terminal #44 for a short-circuit to ground according to «Short-circuit to ground, permanent faults»(ref-441291-S27984344722011121500000) . Check the intake system for leakage according to «intake system/leak test»(ref-441340-S18786781872011121500000) . Remedy as necessary. Other information: To connect the breakout box, see «Connecting the breakout box. EMS 2000»(ref-441291-S13587040122011121500000) For information about signals, see «Signal specification»(ref-441338-S16642011902011121500000) .

Continue Refer to «Checking diagnostic trouble codes (DTCs)»(ref-441343-S24789678582011121500000)

Replace the rear heated oxygen sensor (HO2S) according to «Replacing lambda sond rear»(ref-441339-S13064896142011121500000) .

Continue Refer to «Resetting the adaptation»(ref-441343-S36557952542011121500000)

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 Signal too low. Permanent fault

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

See Faulty signal. Intermittent fault

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

Reinstall the components, reconnect the connectors etc.
Connect VCT2000
Start the engine and allow to idle for approximately 2 minutes. Check whether diagnostic trouble code (DTC) ECM-18 or ECM-1C has changed status to intermittent.

Is diagnostic trouble code (DTC) ECM-18 or ECM-1C intermittent?

YES VERIFIED: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S33560550652011121500000)

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 Faulty signal. Permanent fault

See Signal missing. Intermittent fault

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

See Signal missing. Intermittent fault

See Signal missing. Permanent fault

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

Reinstall the components, reconnect the connectors etc.
Connect VCT2000
Start the engine and allow to idle for approximately 2 minutes. Check whether diagnostic trouble code (DTC) ECM-18 or ECM-1C has changed status to intermittent.

Is diagnostic trouble code (DTC) ECM-18 or ECM-1C intermittent?

YES VERIFIED: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S01094741412011121500000)

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 Signal missing. Permanent fault

See Signal too high. Intermittent fault

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

See Signal too high. Intermittent fault

See Signal too high. Permanent fault

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

Reinstall the components, reconnect the connectors etc.
Connect VCT2000
Start the engine and allow to idle for approximately 2 minutes. Check whether diagnostic trouble code (DTC) ECM-18 or ECM-1C has changed status to intermittent.

Is diagnostic trouble code (DTC) ECM-18 or ECM-1C intermittent?

YES VERIFIED: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S02862999862011121500000)

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 Signal too high. Permanent fault

See Signal too low. Intermittent fault

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

See Signal too low. Intermittent fault

See Signal too low. Permanent fault

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

Reinstall the components, reconnect the connectors etc.
Connect VCT2000
Start the engine and allow to idle for approximately 2 minutes. Check whether diagnostic trouble code (DTC) ECM-18 or ECM-1C has changed status to intermittent.

Is diagnostic trouble code (DTC) ECM-18 or ECM-1C intermittent?

YES VERIFIED: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S16830843442011121500000)

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 Signal too low. Permanent fault

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

See Signal too high. Intermittent fault

Checking injectors

Ignition off
Disconnect the injector connector. Connect an ohmmeter between injector connector terminals 1 and 2.

The ohmmeter should read approximately 15 ohms.

OK Refer to «Checking the signal cable»(ref-441343-S37840711562011121500000)
NOT OK Refer to «Defective injector»(ref-441343-S04978648072011121500000)

Defective injector

Try a new injector according to Replacing the injector(s) .

Continue Refer to «Selecting diagnostic trouble code (DTC)»(ref-441343-S02962410682011121500000)

Ignition off. Check the cable between injector connector terminal 2 and engine control module (ECM) connector terminal 59 (ECM-1E), terminal 90 (ECM-1F), terminal 60 (ECM-20) or terminal 89 (ECM-21) for a short-circuit to supply voltage according to «Short-circuit to supply voltage. Permanent faults»(ref-441291-S37119086802011121500000) . Remedy as necessary.

Continue Refer to «Selecting diagnostic trouble code (DTC)»(ref-441343-S02962410682011121500000)

Reconnect the connectors, reinstall components etc.
Ignition on. Select the VCT 2000 symbol to activate the injector.

Does the injector click?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S16052730822011121500000)

Reconnect the connectors, reinstall components etc.
Ignition on. Activate the injector by clicking on the VCT 2000 symbol.

Does the injector click?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S16052730822011121500000)

Reconnect the connectors, reinstall components etc.
Ignition on. Activate the injector by clicking on the VCT 2000 symbol.

Does the injector click?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S16052730822011121500000)

Reconnect the connectors, reinstall components etc.
Ignition on. Activate the injector by clicking on the VCT 2000 symbol.

Does the injector click?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S16052730822011121500000)

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.

Reconnect the connectors, reinstall components etc.
Ignition on. Activate the injector using the VCT2000 symbol.

Does the injector click?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S33433003262011121500000)

Reconnect the connectors, reinstall components etc.
Ignition on. Click the VCT2000 symbol to activate the injector.

Does the injector click?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S33433003262011121500000)

Reconnect the connectors, reinstall components etc.
Ignition on. Click the VCT2000 symbol to activate the injector.

Does the injector click?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S33433003262011121500000)

Reconnect the connectors, reinstall components etc.
Ignition on. Click the VCT2000 symbol to activate the injector.

Does the injector click?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S33433003262011121500000)

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 Signal too high. Permanent fault

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

See Signal too low. Intermittent fault

Ignition off
Disconnect the injector connector. Connect an ohmmeter between injector connector terminals 1 and 2.

The ohmmeter should read 14-15 ohms at 20 °C.

OK Refer to «Defective injector»(ref-441343-S11838725952011121500000)
NOT OK Refer to «Checking wiring and terminals»(ref-441343-S21769480492011121500000)

Try a new injector according to Replacing the injector(s) .

Continue Refer to «Selecting diagnostic trouble code (DTC)»(ref-441343-S06650954452011121500000)

Ignition off
Reconnect the connectors, reinstall components etc.
Connect VCT 2000
Ignition on. Activate the injector by clicking on the VCT 2000 symbol.

Does the injector click?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S41767051332011121500000)

Reconnect the connectors, reinstall components etc.
Ignition on. Activate the injector by clicking on the VCT 2000 symbol.

Does the injector click?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S41767051332011121500000)

Reconnect the connectors, reinstall components etc.
Ignition on. Activate the injector by clicking on the VCT 2000 symbol.

Does the injector click?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S41767051332011121500000)

Reconnect the connectors, reinstall components etc.
Ignition on. Activate the injector by clicking on the VCT 2000 symbol.

Does the injector click?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S41767051332011121500000)

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.

Reconnect the connectors, reinstall components etc.
Ignition on. Activate the injector using the VCT2000 symbol.

Does the injector click?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S32104759862011121500000)

Reconnect the connectors, reinstall components etc.
Ignition on. Click the VCT2000 symbol to activate the injector.

Does the injector click?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S32104759862011121500000)

Reconnect the connectors, reinstall components etc.
Ignition on. Click the VCT2000 symbol to activate the injector.

Does the injector click?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S32104759862011121500000)

Reconnect the connectors, reinstall components etc.
Ignition on. Click the VCT2000 symbol to activate the injector.

Does the injector click?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S32104759862011121500000)

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 Signal too low. Permanent fault

See Signal too high. Intermittent fault

See Signal too high. Permanent fault

See Signal too low. Intermittent fault

See Signal too low. Permanent fault

See Signal too high. Intermittent fault

See Signal too high. Permanent fault

See Signal too low. Intermittent fault

See Signal too low. Permanent fault

See Signal missing. Permanent fault

See Signal too low. Permanent fault

See Signal too high. Intermittent fault

See Signal too high. Permanent fault

See Signal too low. Intermittent fault

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

See Signal too high. Intermittent fault

Ignition on. Activate the system relay. Check that the relay clicks and the fuel pump (FP) starts when it is activated.

Is the function OK?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S04118293142011121500000)

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.

Ignition on. Activate the system relay. Check that the relay clicks and the fuel pump (FP) starts when it is activated.

Is the function OK?

YES VERIFIED: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S06542246462011121500000)

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 Signal too high. Permanent fault

Checking cables

Check the signal cable between engine control module (ECM) terminal 10 and system relay terminal 2 for an intermittent short-circuit to ground and remedy according to Short-circuit to ground, intermittent faults .

Other information

To connect the breakout box, see «Connecting the breakout box. EMS 2000»(ref-441291-S13587040122011121500000) .

Continue Refer to «Information»(ref-441343-S31713542062011121500000)

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

See Signal too low. Intermittent fault

Ignition on. Activate the system relay. Check that the relay clicks when it is activated.

Is the function OK?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S17030774442011121500000)

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.

Ignition on. Activate the system relay. Check that the relay clicks and the fuel pump (FP) starts when it is activated.

Is the function OK?

YES VERIFIED: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S22301933892011121500000)

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 Signal too low. Permanent fault

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

Lean. Intermittent fault

See Lean. Intermittent fault

Ignition off
Check the front heated oxygen sensor (HO2S) and control module connectors for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S41448420802011121500000)
Check for too low fuel pressure according to «Measuring fuel pressure EMS 2000»(ref-461611-S37299421192012040200000)
Check the intake system for leakage according to «intake system/leak test»(ref-441340-S18786781872011121500000)
Check the exhaust system for leakage according to «Checking the exhaust system for leakage»(ref-441340-S11015915782011121500000)
Remedy as necessary. Other information: To connect the breakout box, see «Connecting the breakout box. EMS 2000»(ref-441291-S13587040122011121500000) .

Continue Refer to «Checking diagnostic trouble codes (DTCs)»(ref-441343-S04615032652011121500000)

Replace the front heated oxygen sensor (HO2S) according to «Replace the front heated oxygen sensor (HO2S)»(ref-441339-S30504258732011121500000) .

Continue Refer to «Resetting the adaptation»(ref-441343-S41877892612011121500000)

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.

Lean. Permanent fault

See Lean. Permanent fault

Ignition off. Check the air cleaner (ACL) and intake system for blockage according to «intake system/leak test»(ref-441340-S18786781872011121500000) . Check for too high fuel pressure according to «Measuring fuel pressure EMS 2000»(ref-461611-S37299421192012040200000) . Check the injectors for leakage according to «Checking the injectors»(ref-461611-S22049426322012040200000) . Check that the engine oil level is not too high and that it is not contaminated with fuel. Check the front heated oxygen sensor (HO2S) and control module connectors. Check for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S00267239222011121500000) . Remedy as necessary. Other information: To access the control module, see «Engine control module (ECM), replacing»(ref-441335-S25586099582011121500000) To replace the front heated oxygen sensor (HO2S), see «Replace the front heated oxygen sensor (HO2S)»(ref-441339-S30504258732011121500000) .

Continue Refer to «Resetting the adaptation»(ref-441343-S41849993532011121500000)

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

Rich. Intermittent fault

See Rich. Intermittent fault

Ignition off
Check the front heated oxygen sensor (HO2S) and control module connectors for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S41448420802011121500000)
Check the air filter and intake system for blockage
Check for too high fuel pressure according to «Measuring fuel pressure EMS 2000»(ref-461611-S37299421192012040200000)
Check the injectors for leakage according to «Checking the injectors»(ref-461611-S22049426322012040200000)
Check that the engine oil level is not too high and that it is not contaminated with fuel
Remedy as necessary. Other information: To connect the breakout box, see «Connecting the breakout box. EMS 2000»(ref-441291-S13587040122011121500000) .

Continue Refer to «Checking diagnostic trouble codes (DTCs)»(ref-441343-S00943231922011121500000)

Replace the front heated oxygen sensor (HO2S) according to «Replace the front heated oxygen sensor (HO2S)»(ref-441339-S30504258732011121500000) .

Continue Refer to «Resetting the adaptation»(ref-441343-S14960278712011121500000)

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.

Rich. Permanent fault

See Rich. Permanent fault

Check the connectors for the front and rear heated oxygen sensor (HO2S). Check for contact resistance and oxidation.

Note. Check that there is no oil or grease in the connectors.

Check the exhaust system for leakage. Check in particular between the front and rear heated oxygen sensor (HO2S) and between the exhaust manifold / turbocharger (TC) and the front heated oxygen sensor (HO2S).

Check the intake system for air leakage. Even extremely small air leaks can cause this diagnostic trouble code (DTC) to be stored.

Remedy as necessary.

HINT: The diagnostic trouble code (DTC) may also be due to a defective front or rear heated oxygen sensor (HO2S).

Try a new front heated oxygen sensor (HO2S) if no fault is found during the above fault-tracing.

Try a new rear heated oxygen sensor (HO2S) if the fault remains after the above fault-tracing.

Other information

To check the exhaust system for leakage, see «Checking the exhaust system for leakage»(ref-441340-S11015915782011121500000)
To check the intake system for leakage, see «intake system/leak test»(ref-441340-S18786781872011121500000)
To connect the breakout box, see «Connecting the breakout box. EMS 2000»(ref-441291-S13587040122011121500000)
For information about signals, see «Signal specification»(ref-441338-S16642011902011121500000)
See «Contents»(ref-441289-S02135994792011121500000)
To access or replace the front or rear heated oxygen sensor (HO2S), see «Replace the front heated oxygen sensor (HO2S)»(ref-441339-S30504258732011121500000) .

Continue Refer to «Verification»(ref-441343-S06338187082011121500000)

HINT: After carrying out repairs it may be necessary to check that the car is fault free. This is done by erasing diagnostic trouble codes (DTCs) and then reading off diagnostic trouble codes (DTCs) after the diagnostic for the heated oxygen sensors (HO2S) has been run. This checks that the control module has run the diagnostic without detecting any faults.

If the diagnostic function has cycled and a fault is detected by the control module a diagnostic trouble code (DTC) will be stored.

If the diagnostic trouble codes (DTCs) have been erased and no faults are detected after the diagnostic function is run by the control module, no diagnostic trouble code (DTC) will be stored for the fault.

HINT: It will not be possible to run the diagnostic functions if diagnostic trouble codes (DTCs) are stored.

Scheme 103

Scheme 103: Verification

Continue Refer to «Erasing diagnostic trouble codes (DTCs)»(ref-441343-S29468811742011121500000)

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.

Faulty signal

See Faulty signal

Ignition off. Check the connectors for the rear heated oxygen sensor (HO2S) and control module for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S00267239222011121500000) . Check the exhaust system for leakage according to «Checking the exhaust system for leakage»(ref-441340-S11015915782011121500000) . Remedy as necessary. Other information: To access the control module, see «Engine control module (ECM), replacing»(ref-441335-S25586099582011121500000) To replace the rear heated oxygen sensor (HO2S), see «Replacing lambda sond rear»(ref-441339-S13064896142011121500000) .

Continue Refer to «Resetting the adaptation»(ref-441343-S33560747292011121500000)

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

See Faulty signal. Intermittent fault

Ignition off
Check the connectors for the rear heated oxygen sensor (HO2S) and control module. Check for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S41448420802011121500000)
Check the exhaust system for leakage according to «Checking the exhaust system for leakage»(ref-441340-S11015915782011121500000)
Remedy as necessary. Other information: To connect the breakout box, see «Connecting the breakout box. EMS 2000»(ref-441291-S13587040122011121500000) .

Continue Refer to «Checking diagnostic trouble codes (DTCs)»(ref-441343-S10303048772011121500000)

Replace the rear heated oxygen sensor (HO2S) according to «Replacing lambda sond rear»(ref-441339-S13064896142011121500000) .

Continue Refer to «Resetting the adaptation»(ref-441343-S32278448002011121500000)

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 Faulty signal. Permanent fault

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

Checking the terminal

Ignition off
The turbocharger (TC) control valve connector disconnected. Check the turbocharger (TC) control valve connector. Check for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S41448420802011121500000) . Remedy as necessary.

Were any faults found?

YES Refer to «Verification»(ref-441343-S40199906652011121500000)
NO Refer to «Checking the turbocharger (TC) control valve»(ref-441343-S29191955852011121500000)

Checking the turbocharger (TC) control valve

The turbocharger (TC) control valve connector disconnected. Connect an ohmmeter between turbocharger (TC) control valve connector terminals 1 and 2.

The ohmmeter should read approximately 23 ohms.

OK Refer to «Checking the power supply»(ref-441343-S09821830332011121500000)
NOT OK Refer to «Defective turbocharger (TC) control valve»(ref-441343-S34042252042011121500000)

Checking the power supply

Ignition on. Connect a voltmeter between turbocharger (TC) control valve connector terminal 1 (control module side) and the ground terminal.

The voltmeter should read battery voltage for 2 seconds immediately after the ignition is switched on.

OK Refer to «Checking the signal cable»(ref-441343-S14583954122011121500000)
NOT OK Refer to «Checking the signal cable»(ref-441343-S38543812102011121500000)

Ignition off. Check the cable between turbocharger (TC) control valve connector terminal 2 and engine control module (ECM) connector terminal #5. Check for an open-circuit according to «Open-circuit, permanent faults»(ref-441291-S38831997352011121500000) . Remedy as necessary.

Continue Refer to «Verification»(ref-441343-S40199906652011121500000)

Defective turbocharger (TC) control valve

Try a new turbocharger (TC) control valve according to Replacing the turbocharger (TC) control valve .

Continue Refer to «Verification»(ref-441343-S40199906652011121500000)

Ignition off. Check the cable between turbocharger (TC) control valve connector terminal 1 and system relay 2/14 terminal 3. Check for an open-circuit according to «Open-circuit, permanent faults»(ref-441291-S38831997352011121500000) . Remedy as necessary.

Continue Refer to «Verification»(ref-441343-S40199906652011121500000)

Reconnect the connectors, reinstall components etc.
Ignition on. Activate the turbocharger (TC) control valve.

Does the turbocharger (TC) control valve click?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S22227482362011121500000)

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.

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

Ignition off
The turbocharger (TC) control valve connector disconnected. Connect an ohmmeter between turbocharger (TC) control valve connector terminals 1 and 2.

The ohmmeter should read approximately 23 ohms at 20 °C.

OK Refer to «Checking the signal cable»(ref-441343-S24815013792011121500000)
NOT OK Refer to «Defective turbocharger (TC) control valve»(ref-441343-S16432346462011121500000)

Try a new turbocharger (TC) control valve according to Replacing the turbocharger (TC) control valve .

Continue Refer to «Verification»(ref-441343-S27476415642011121500000)

Ignition off. Check the cable between turbocharger (TC) control valve connector terminal 2 and engine control module (ECM) terminal 5. Check for a short-circuit to supply voltage according to «Short-circuit to supply voltage. Permanent faults»(ref-441291-S37119086802011121500000) . Remedy as necessary.

Continue Refer to «Verification»(ref-441343-S27476415642011121500000)

Reconnect the connectors, reinstall components etc.
Ignition on. Activate the turbocharger (TC) control valve.

Does the turbocharger (TC) control valve click?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S42508803622011121500000)

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.

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

Ignition off
The turbocharger (TC) control valve connector disconnected. Check the cable between turbocharger (TC) control valve connector terminal 2 (control module side) and engine control module (ECM) terminal #5. Check for a short-circuit to ground according to «Short-circuit to ground, permanent faults»(ref-441291-S27984344722011121500000) . Remedy as necessary.

Continue Refer to «Verification»(ref-441343-S42461416682011121500000)

Ignition off
Reconnect the connectors, reinstall components etc.
Connect VCT2000
Ignition on. Activate the turbocharger (TC) control valve.

Does the turbocharger (TC) control valve click?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S17551669482011121500000)

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 Signal missing. Intermittent fault

See Signal missing. Permanent fault

See Signal too high. Intermittent fault

See Signal too high. Permanent fault

See Signal too low. Intermittent fault

See Signal too low. Permanent fault

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

See Signal missing. Intermittent fault

Ignition off
Turbocharger (TC) control valve connector disconnected. Check the turbocharger (TC) control valve connector for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S41448420802011121500000) . Remedy as necessary.

Were any faults found?

YES Refer to «Verification»(ref-441343-S28512048742011121500000)
NO Refer to «Checking the turbocharger (TC) control valve»(ref-441343-S26824337472011121500000)

Turbocharger (TC) control valve connector disconnected. Connect an ohmmeter between turbocharger (TC) control valve connector terminals 1 and 2.

The ohmmeter should read approximately 30 ohms.

OK Refer to «Checking the power supply»(ref-441343-S02760440252011121500000)
NOT OK Refer to «Defective turbocharger (TC) control valve»(ref-441343-S25628734682011121500000)

Ignition on. Connect a voltmeter between turbocharger (TC) control valve connector terminal 1 (control module side) and the ground terminal.

The voltmeter should read battery voltage for 2 seconds immediately after the ignition is switched on.

OK Refer to «Checking the signal cable»(ref-441343-S33712602352011121500000)
NOT OK Refer to «Checking the signal cable»(ref-441343-S34000184872011121500000)

Ignition off. Check the cable between turbocharger (TC) control valve connector terminal 2 and engine control module (ECM) connector terminal 5 for an open-circuit according to «Open-circuit, permanent faults»(ref-441291-S38831997352011121500000) . Remedy as necessary.

Continue Refer to «Verification»(ref-441343-S28512048742011121500000)

Try a new turbocharger (TC) control valve according to Replacing the turbocharger (TC) control valve .

Continue Refer to «Verification»(ref-441343-S28512048742011121500000)

Ignition off. Check the cable between turbocharger (TC) control valve connector terminal 1 and system relay 2/14 terminal 3 for an open-circuit according to «Open-circuit, permanent faults»(ref-441291-S38831997352011121500000) . Remedy as necessary.

Continue Refer to «Verification»(ref-441343-S28512048742011121500000)

Reconnect the connectors, reinstall components etc.
Ignition on. Activate the turbocharger (TC) control valve.

Does the turbocharger (TC) control valve click?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S36810784962011121500000)

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 Signal missing. Permanent fault

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

See Signal too high. Intermittent fault

Ignition off
Turbocharger (TC) control valve connector disconnected. Connect an ohmmeter between turbocharger (TC) control valve connector terminals 1 and 2.

The ohmmeter should read approximately 30 ohms.

OK Refer to «Checking the signal cable»(ref-441343-S18740971152011121500000)
NOT OK Refer to «Defective turbocharger (TC) control valve»(ref-441343-S16127350482011121500000)

Try a new turbocharger (TC) control valve according to Replacing the turbocharger (TC) control valve .

Continue Refer to «Verification»(ref-441343-S34301226332011121500000)

Ignition off. Check the cable between turbocharger (TC) control valve connector terminal 2 and engine control module (ECM) terminal 5 for a short-circuit to supply voltage according to «Short-circuit to supply voltage. Permanent faults»(ref-441291-S37119086802011121500000) . Remedy as necessary.

Continue Refer to «Verification»(ref-441343-S34301226332011121500000)

Reconnect the connectors, reinstall components etc.
Ignition on. Activate the turbocharger (TC) control valve.

Does the turbocharger (TC) control valve click?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S05586868012011121500000)

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 Signal too high. Permanent fault

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

See Signal too low. Intermittent fault

Ignition off
Turbocharger (TC) control valve connector disconnected. Check the cable between turbocharger (TC) control valve connector terminal 2 (control module side) and engine control module (ECM) terminal 5 for a short-circuit to ground according to «Short-circuit to ground, permanent faults»(ref-441291-S27984344722011121500000) . Remedy as necessary.

Continue Refer to «Verification»(ref-441343-S29468556962011121500000)

Ignition off
Reconnect the connectors, reinstall components etc.
Connect VCT 2000
Ignition on. Activate the turbocharger (TC) control valve.

Does the turbocharger (TC) control valve click?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S10699387442011121500000)

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 Signal too low. Permanent fault

Checking the turbocharger (TC) control system

Release the boost pressure control (BPC) valve according to «Checking and adjusting the boost pressure control (BPC) valve on the turbocharger (TC)»(ref-441340-S19636300142011121500000) . Check that the boost pressure control (BPC) valve is unimpeded and does not stick in the closed position
Check the turbocharger (TC) according to «Checking boost pressure with manometer while test driving the car»(ref-441340-S06905798592011121500000) . In particular check the hoses and the function of the pressure regulator
Remedy as necessary.

Was a fault detected?

YES Refer to «Information»(ref-441343-S19993399092011121500000)
NO Refer to «Checking the connectors and components»(ref-441343-S24032170802011121500000)

Ignition off
Check the control module and mass air flow (MAF) sensor connectors. Check for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S00267239222011121500000) . Check for loose connections according to «Loose connections (terminals)»(ref-441291-S22081329982011121500000) . In particular, check for any damage
Remedy as necessary.

Continue Refer to «Information»(ref-441343-S19993399092011121500000)

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

See Signal too high. Intermittent fault

Release the boost pressure control (BPC) valve according to «Checking and adjusting the boost pressure control (BPC) valve on the turbocharger (TC)»(ref-441340-S19636300142011121500000) . Check that the boost pressure control (BPC) valve is unimpeded and does not stick in the closed position
Check the turbocharger (TC) according to «Checking boost pressure with manometer while test driving the car»(ref-441340-S06905798592011121500000) . In particular check the hoses and the function of the pressure regulator
Remedy as necessary.

Was a fault detected?

YES Refer to «Verification»(ref-441343-S21101120102011121500000)
NO Refer to «Checking the connectors and components»(ref-441343-S10860859342011121500000)

Ignition off
Check the mass air flow (MAF) sensor, system relay and control module connectors for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S41448420802011121500000) . In particular, check for any damage
Remedy as necessary. Other information To access the control module, see «Engine control module (ECM), replacing»(ref-441335-S25586099582011121500000) To connect the breakout box, see «Connecting the breakout box. EMS 2000»(ref-441291-S13587040122011121500000) For information about signals see «Signal specification»(ref-441338-S16642011902011121500000) .

Continue Refer to «Checking the component»(ref-441343-S15450133272011121500000)

Checking the component

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

Test drive the car with constantly changing throttle opening
Connect the VIDA station
Ignition on
Check whether the diagnostic trouble code (DTC) status changes to intermittent. The fault has been remedied if the status of the diagnostic trouble code (DTC) has changed to intermittent.

Has the diagnostic trouble code (DTC) status changed?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Replacing the component»(ref-441343-S12141244732011121500000)

Try a new mass air flow (MAF) sensor. See «Replacing the mass air flow (MAF) sensor»(ref-441341-S07422979692011121500000) .

Continue Refer to «Verification»(ref-441343-S21101120102011121500000)

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

Test drive the car with changing throttle opening and at constant throttle opening. This will ensure that the boost pressure system operates throughout the entire range
Connect the VIDA station
Ignition on
Check if the diagnostic trouble code (DTC) status has changed to intermittent. If it has, the fault has been remedied.

Has the status of the diagnostic trouble code (DTC) status changed?

YES VERIFIED: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S15312312712011121500000)

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 Signal too high. Permanent fault

Checking for air leakage and the turbocharger (TC) control system

Check the engine intake system according to «intake system/leak test»(ref-441340-S18786781872011121500000) . Check in particular the charge air pipe and the intake manifold for air leakage
Release the boost pressure control (BPC) valve according to «Checking and adjusting the boost pressure control (BPC) valve on the turbocharger (TC)»(ref-441340-S19636300142011121500000) . Check that the boost pressure control (BPC) valve is unimpeded and does not stick in the open position
Check the turbocharger (TC) according to «Checking boost pressure with manometer while test driving the car»(ref-441340-S06905798592011121500000)
Check the air cleaner (ACL) for blockage
Remedy as necessary.

Was a fault detected?

YES Refer to «Information»(ref-441343-S12400030632011121500000)
NO Refer to «Checking the cable and component»(ref-441343-S29560771082011121500000)

Checking the cable and component

Ignition off
Check the control module and mass air flow (MAF) sensor connectors. Check for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S00267239222011121500000) . Check for loose connections according to «Loose connections (terminals)»(ref-441291-S22081329982011121500000) . In particular, check for any damage
Remedy as necessary. Other information To replace the mass air flow (MAF) sensor, see «Replacing the mass air flow (MAF) sensor»(ref-441341-S07422979692011121500000) .

Continue Refer to «Information»(ref-441343-S12400030632011121500000)

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

See Signal too low. Intermittent fault

Check the engine intake system according to «intake system/leak test»(ref-441340-S18786781872011121500000) . Check in particular the charge air pipe and the intake manifold for air leakage
Release the boost pressure control (BPC) valve according to «Checking and adjusting the boost pressure control (BPC) valve on the turbocharger (TC)»(ref-441340-S19636300142011121500000) . Check that the boost pressure control (BPC) valve is unimpeded and does not stick in the open position
Check the turbocharger (TC) according to «Checking boost pressure with manometer while test driving the car»(ref-441340-S06905798592011121500000)
Check the air cleaner (ACL) for blockage
Remedy as necessary.

Was a fault detected?

YES Refer to «Verification»(ref-441343-S28805295212011121500000)
NO Refer to «Checking the connectors and components»(ref-441343-S37066334752011121500000)

Ignition off
Check the mass air flow (MAF) sensor, system relay and control module connectors for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S41448420802011121500000) . In particular, check for any damage
Remedy as necessary. Other information To access the control module, see «Engine control module (ECM), replacing»(ref-441335-S25586099582011121500000) To connect the breakout box, see «Connecting the breakout box. EMS 2000»(ref-441291-S13587040122011121500000) For information about signals see «Signal specification»(ref-441338-S16642011902011121500000) .

Continue Refer to «Checking the component»(ref-441343-S35832767462011121500000)

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

Test drive the car with constantly changing throttle opening
Connect the VIDA station
Ignition on
Check whether the status of the diagnostic trouble code (DTC) has changed to intermittent. If the status has changed to intermittent the fault has been remedied.

Has the diagnostic trouble code (DTC) status changed?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Replacing the component»(ref-441343-S15266068072011121500000)

Try a new mass air flow (MAF) sensor. See «Replacing the mass air flow (MAF) sensor»(ref-441341-S07422979692011121500000) .

Continue Refer to «Verification»(ref-441343-S28805295212011121500000)

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

Test drive the car with changing throttle opening and at constant throttle opening. This will ensure that the boost pressure system operates throughout the entire range
Connect the VIDA station
Ignition on
Check if the diagnostic trouble code (DTC) status has changed to intermittent. If it has, the fault has been remedied.

Has the status of the diagnostic trouble code (DTC) status changed?

YES VERIFIED: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S37918493472011121500000)

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 Signal too low. Permanent fault

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

See Faulty signal. Intermittent fault

Checking the connector

Ignition off
Check the connector for the camshaft position (CMP) sensor for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S41448420802011121500000)
Reinstall the components, reconnect the connectors etc.
Start the engine
Rev the engine a couple of times
Read off diagnostic trouble codes (DTCs). If the status of the diagnostic trouble code (DTC) has changed to intermittent, the fault was caused by loose connections in the connector and the fault has been remedied. Other information To access or replace the camshaft position (CMP) sensor, see «Replacing camshaft position (CMP) sensor»(ref-441335-S38740013462011121500000) .

Is the status of the diagnostic trouble code (DTC) intermittent?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Checking components and wiring»(ref-441343-S24881329342011121500000)

Start the engine. Read off diagnostic trouble codes (DTCs).

Has the diagnostic trouble code (DTC) ECM-32 changed status to intermittent?

NO Refer to «Information»(ref-441343-S42625531632011121500000)

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.

Ignition off
Check the connector for the camshaft position (CMP) sensor for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S41448420802011121500000)
Reinstall the components, reconnect the connectors etc.
Start the engine
Rev the engine a couple of times
Read off diagnostic trouble codes (DTCs). If the status of the diagnostic trouble code (DTC) has changed to intermittent, the fault was caused by loose connections in the connector and the fault has been remedied. Other information To access or replace the camshaft position (CMP) sensor, see «Replacing camshaft position (CMP) sensor»(ref-441335-S38740013462011121500000) .

Is the status of the diagnostic trouble code (DTC) intermittent?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Checking components and wiring»(ref-441343-S22216007902011121500000)

Reconnect the connectors, reinstall components etc.
Start the engine
Rev the engine a couple of times. Read off diagnostic trouble codes (DTCs).

Has the diagnostic trouble code (DTC) ECM-32 changed status to intermittent?

NO Refer to «Information»(ref-441343-S38776290852011121500000)

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 Faulty signal. Permanent fault

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

See Signal missing. Intermittent fault

Ignition off
Disconnect the connector for the camshaft position (CMP) sensor. Check the connector for the camshaft position (CMP) sensor for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S41448420802011121500000) . Remedy as necessary.

Was a fault detected?

YES Refer to «Verification»(ref-441343-S20079737292011121500000)
NO Refer to «Checking the signal cable»(ref-441343-S12522707972011121500000)

Ignition on. Connect a voltmeter between connector terminal 2 for the camshaft position (CMP) sensor (control module side) and ground and between terminal 3 and ground.

In both cases the voltmeter should display approximately 5 V.

OK Refer to «Checking the ground lead»(ref-441343-S22267325022011121500000)
NOT OK Refer to «Checking cables»(ref-441343-S20652695112011121500000)

Checking the ground lead

Ignition off. Connect an ohmmeter between connector terminal 1 on the camshaft position (CMP) sensor (control module side) and the ground terminal.

The ohmmeter should read approximately 0 ohms.

OK Refer to «Defective camshaft position (CMP) sensor»(ref-441343-S01780348872011121500000)
NOT OK Refer to «Checking the ground lead»(ref-441343-S40951590902011121500000)

Defective camshaft position (CMP) sensor

Try a new camshaft position (CMP) sensor according to Replacing camshaft position (CMP) sensor .

Continue Refer to «Verification»(ref-441343-S20079737292011121500000)

Check the cable between connector terminal 1 for the camshaft position (CMP) sensor and engine control module (ECM) connector terminal 79 for an open-circuit according to Open-circuit, permanent faults .

Remedy as necessary.

Continue Refer to «Verification»(ref-441343-S20079737292011121500000)

Check the cable between connector terminal 2 for the camshaft position (CMP) sensor and engine control module (ECM) connector terminal 58. Check the cable connector terminal 3 for the camshaft position (CMP) sensor (control module side) and engine control module (ECM) terminal 83. Check these cables for an open-circuit according to Open-circuit, permanent faults and for a short-circuit to ground according to Short-circuit to ground, permanent faults and for a short-circuit to supply voltage according to Short-circuit to supply voltage. Permanent faults .

Remedy as necessary.

Continue Refer to «Verification»(ref-441343-S20079737292011121500000)

Reconnect the connectors, reinstall components etc.
Start the engine. Read off diagnostic trouble codes (DTCs).

Has the diagnostic trouble code (DTC) ECM-32 changed status to intermittent?

NO Refer to «Information»(ref-441343-S38930866132011121500000)

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.

Ignition off
Disconnect the connector for the camshaft position (CMP) sensor. Check the connector for the camshaft position (CMP) sensor. Check for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S41448420802011121500000) . Remedy as necessary.

Was a fault detected?

YES Refer to «Verification»(ref-441343-S37041968552011121500000)
NO Refer to «Checking the signal cable»(ref-441343-S37363157212011121500000)

Ignition off. Check the cable between camshaft position (CMP) sensor connector terminal #2 and engine control module connector terminal #58. Check the cable between camshaft position (CMP) sensor connector #3 (control module side) and engine control module terminal #83. Check for an open-circuit according to «Open-circuit, permanent faults»(ref-441291-S38831997352011121500000) . Check for a short-circuit to ground according to «Short-circuit to ground, permanent faults»(ref-441291-S27984344722011121500000) . Check for a short-circuit to supply voltage according to «Short-circuit to supply voltage. Permanent faults»(ref-441291-S37119086802011121500000) . Remedy as necessary.

Was a fault detected?

YES Refer to «Verification»(ref-441343-S37041968552011121500000)
NO Refer to «Checking the ground lead»(ref-441343-S04669006052011121500000)

Ignition off. Connect an ohmmeter between connector terminal #1 on the camshaft position (CMP) sensor (control module side) and the ground terminal.

The ohmmeter should read approximately 0 ohms.

OK Refer to «Defective camshaft position (CMP) sensor»(ref-441343-S36518605162011121500000)
NOT OK Refer to «Checking the ground lead»(ref-441343-S09406626602011121500000)

Try a new camshaft position (CMP) sensor according to Replacing camshaft position (CMP) sensor .

Continue Refer to «Verification»(ref-441343-S37041968552011121500000)

Check the cable between camshaft position (CMP) sensor connector terminal #1 and engine control module (ECM) connector terminal #79. Check for an open-circuit according to Open-circuit, permanent faults .

Remedy as necessary.

Continue Refer to «Verification»(ref-441343-S37041968552011121500000)

Reconnect the connectors, reinstall components etc.
Start the engine
Rev the engine a couple of times. Read off diagnostic trouble codes (DTCs).

Has the diagnostic trouble code (DTC) ECM-32 changed status to intermittent?

NO Refer to «Information»(ref-441343-S10248534692011121500000)

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 Signal missing. Permanent fault

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

See Signal too high. Intermittent fault

Ignition on. Check the cable between ignition coil terminal 1 and engine control module (ECM) terminal #32 (ECM-38), #1 (ECM-3A) for a short-circuit to supply voltage according to «Short-circuit to supply voltage. Permanent faults»(ref-441291-S37119086802011121500000) .

The voltmeter should read battery voltage for 2 seconds immediately the ignition is switched on.

OK Refer to «Checking ignition coil»(ref-441343-S40713983662011121500000)
NOT OK Refer to «Checking ignition coil»(ref-441343-S01958545162011121500000)

Checking ignition coil

Connect an ohmmeter between the ignition coil terminals 1 and 2 (ignition coil side).

The ohmmeter should read approximately 0.5 ohms.

OK Refer to «Checking ignition coil»(ref-441343-S21645120972011121500000)
NOT OK Refer to «Checking ignition coil»(ref-441343-S05641935262011121500000)

Try a new ignition coil according to Ignition coil(s), replacement .

Continue Refer to «Verification»(ref-441343-S28734881512011121500000)

Ignition off. Check the cable between ignition coil terminal 1 and engine control module (ECM) terminal #32 (ECM-38) or #1 (ECM-3A) for an open-circuit according to «Open-circuit, permanent faults»(ref-441291-S38831997352011121500000) and for a short-circuit to ground according to «Short-circuit to ground, permanent faults»(ref-441291-S27984344722011121500000) .

Continue Refer to «Verification»(ref-441343-S28734881512011121500000)

Ignition on. Check the cable between ignition coil connector terminal 1 and system relay 2/14 base terminal 3 for an open-circuit according to «Open-circuit, permanent faults»(ref-441291-S38831997352011121500000) . Remedy as necessary.

Continue Refer to «Verification»(ref-441343-S28734881512011121500000)

Reconnect the connectors, reinstall components etc.
Ignition on.
Start the engine.

Does the engine run on all cylinders?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S17082249922011121500000)

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 Signal too high. Permanent fault

Check the signal cable between ignition coil terminal 1 and engine control module (ECM) terminal #32 (ECM-38), #1 (ECM-3A) for an intermittent short-circuit to ground and remedy according to Short-circuit to ground, intermittent faults .

Other information

To connect the breakout box, see «Connecting the breakout box. EMS 2000»(ref-441291-S13587040122011121500000) .

Continue Refer to «Information»(ref-441343-S25302320132011121500000)

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

See Signal too low. Intermittent fault

Checking terminals

Ignition off.
Disconnect the ignition coil connector. Check the ignition coil connector for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S41448420802011121500000) .

Was a fault detected?

YES Refer to «Verification»(ref-441343-S21381414082011121500000)
NO Refer to «Checking the signal cable»(ref-441343-S08713562202011121500000)

Disconnect the ignition coil connector.
Ignition on. Connect a voltmeter between the ignition coil connector terminal 2 (engine control module (ECM) side) and ground.

The voltmeter should read battery voltage for 2 seconds immediately the ignition is switched on.

OK Refer to «Checking ignition coil»(ref-441343-S24711622482011121500000)
NOT OK Refer to «Checking ignition coil»(ref-441343-S13562415442011121500000)

Connect an ohmmeter between the ignition coil terminals 1 and 2 (ignition coil side).

The ohmmeter should read approximately 0.5 ohms.

OK Refer to «Checking ignition coil»(ref-441343-S23188930272011121500000)
NOT OK Refer to «Checking ignition coil»(ref-441343-S40914032752011121500000)

Try a new ignition coil according to Ignition coil(s), replacement .

Continue Refer to «Verification»(ref-441343-S21381414082011121500000)

Ignition off. Check the cable between ignition coil terminal 1 and engine control module (ECM) terminal #32 (ECM-38) or #1 (ECM-3A) for an open-circuit according to «Open-circuit, permanent faults»(ref-441291-S38831997352011121500000) and for a short-circuit to ground according to «Short-circuit to ground, permanent faults»(ref-441291-S27984344722011121500000) .

Continue Refer to «Verification»(ref-441343-S21381414082011121500000)

Ignition on. Check the cable between ignition coil connector terminal 2 and system relay 2/14 base terminal 3 for an open-circuit according to «Open-circuit, permanent faults»(ref-441291-S38831997352011121500000) . Remedy as necessary.

Continue Refer to «Verification»(ref-441343-S21381414082011121500000)

Reconnect the connectors, reinstall components etc.
Ignition on.
Start the engine.

Does the engine run on all cylinders?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S11770028392011121500000)

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.

Ignition off
Disconnect the ignition coil connector. Check the ignition coil connector. Check for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S41448420802011121500000) .

Was a fault detected?

YES Refer to «Verification»(ref-441343-S12806063932011121500000)
NO Refer to «Checking the signal cable»(ref-441343-S04623753612011121500000)

Disconnect the ignition coil connector
Ignition on. Connect a voltmeter between the ignition coil connector terminal 2 (engine control module (ECM) side) and ground.

The voltmeter must display battery voltage for 2 seconds immediately after the ignition is switched on.

OK Refer to «Checking the ignition coil»(ref-441343-S26059856192011121500000)
NOT OK Refer to «Checking the ignition coil»(ref-441343-S06533244632011121500000)

Checking the ignition coil

Connect an ohmmeter between the ignition coil terminals 1 and 2 (ignition coil side).

The ohmmeter should read approximately 0.5 ohms.

OK Refer to «Checking the ignition coil»(ref-441343-S38097077412011121500000)
NOT OK Refer to «Checking the ignition coil»(ref-441343-S10901644502011121500000)

Try a new ignition coil according to Ignition coil(s), replacement .

Continue Refer to «Verification»(ref-441343-S12806063932011121500000)

Ignition off. Check the cable between ignition coil connector terminal 1 and engine control module (ECM) terminal #32 (ECM-38) or terminal #1 (ECM-3A). Check for an open-circuit according to «Open-circuit, permanent faults»(ref-441291-S38831997352011121500000) . Check for a short-circuit to ground according to «Short-circuit to ground, permanent faults»(ref-441291-S27984344722011121500000) .

Continue Refer to «Verification»(ref-441343-S12806063932011121500000)

Ignition on. Check the cable between ignition coil connector terminal 2 and system relay 2/14 base terminal 3. Check for an open-circuit according to «Open-circuit, permanent faults»(ref-441291-S38831997352011121500000) . Remedy as necessary.

Continue Refer to «Verification»(ref-441343-S12806063932011121500000)

Reconnect the connectors, reinstall components etc.
Ignition on
Start the engine.

Is the engine running on all cylinders?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S05704652822011121500000)

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 Signal too low. Permanent fault

See Signal too high. Intermittent fault

See Signal too high. Permanent fault

See Signal too low. Intermittent fault

See Signal too low. Permanent fault

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

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 Faulty signal. Intermittent fault

Ignition off. Connect an ohmmeter between the knock sensor (KS) connector terminals 1 and 2 (engine control module (ECM) side). The ohmmeter should read approximately 100 kohms. 95-105 kohms Refer to «Checking terminals»(ref-441343-S05881403642011121500000) 0 ohms Refer to «Checking the signal cable»(ref-441343-S07268893452011121500000) Infinite resistance. Refer to «Checking ground leads»(ref-441343-S30987119612011121500000)

Check the knock sensor (KS) connector for contact resistance and oxidation according to Contact resistance and oxidation .

Remedy as necessary.

Were any faults found?

YES Refer to «Verification»(ref-441343-S40358378032011121500000)
NO Refer to «Defective knock sensor (KS)»(ref-441343-S03257817322011121500000)

Check the cable between knock sensor (KS) connector terminal 1 (control module side) and engine control module (ECM) terminal #51. Check for a short-circuit to ground according to Short-circuit to ground, permanent faults .

Remedy as necessary.

Continue Refer to «Verification»(ref-441343-S40358378032011121500000)

Checking ground leads

Connect an ohmmeter between knock sensor (KS) connector terminal 2 (engine control module (ECM) side) and ground. Connect an ohmmeter between knock sensor (KS) connector terminal #3 (control module side) and ground. In both cases the ohmmeter should display approximately 0 ohms.

Was a fault detected?

YES Refer to «Checking the ground lead»(ref-441343-S07603923222011121500000)
NO Refer to «Checking the ground lead»(ref-441343-S36627849352011121500000)

Check the cable between knock sensor (KS) connector terminal 1 (control module side) and engine control module (ECM) terminal #51. Check for an open-circuit according to Open-circuit, permanent faults .

Remedy as necessary.

Continue Refer to «Verification»(ref-441343-S40358378032011121500000)

Check the cables between knock sensor (KS) connector terminal 2 (control module side) and engine control module (ECM) terminal #76 and between knock sensor (KS) connector terminal 3 (control module side) and engine control module (ECM) terminal #19. Check for an open-circuit according to Open-circuit, permanent faults .

Remedy as necessary.

Continue Refer to «Verification»(ref-441343-S40358378032011121500000)

Check the cable between knock sensor (KS) connector terminal 1 (control module side) and engine control module (ECM) terminal #51. Check for a short-circuit to supply voltage according to Short-circuit to ground, permanent faults .

Remedy as necessary.

Continue Refer to «Verification»(ref-441343-S40358378032011121500000)

Defective knock sensor (KS)

Try a new knock sensor (KS). See Replacing the knock sensor (KS) .

Continue Refer to «Verification»(ref-441343-S40358378032011121500000)

Reconnect the connectors, reinstall components etc.
Connect VCT 2000
Start the engine
Rev the engine to 4000 RPM a couple of times. Read off diagnostic trouble codes (DTCs)

Has the status of the diagnostic trouble code (DTC) changed to intermittent?

YES OKAY: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S13373022652011121500000)

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.

Reinstall the components, reconnect the connectors etc.
Connect VCT2000
Start the engine
Rev the engine to 4000 RPM a couple of times
Read off diagnostic trouble codes (DTCs)

Has the status of the diagnostic trouble code (DTC) changed to intermittent?

YES VERIFIED: Troubleshooting has been completed.
NO Refer to «Information»(ref-441343-S37592212582011121500000)

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 Faulty signal. Permanent fault

The control module had previously registered an internal fault.

Internal fault. Intermittent fault

See Internal fault. Intermittent fault

Defective control module I

Replace engine control module (ECM) according to Engine control module (ECM), replacing .

Internal fault. Permanent fault

See Internal fault. Permanent fault

Checking the fuel injection system, ignition system and components

Check that the engine oil level is correct.

Check the ignition system for moisture in the spark plug wells. Check the ignition cables for open-circuits.

Check the spark plugs. Search for damage in the insulation and other damage. If there is any doubt about their function, replace the spark plugs.

Check the ignition coil connectors and the ground cable. Check for contact resistance and oxidation according to Contact resistance and oxidation .

Check the engine compression according to Checking the engine .

Check the injectors according to Checking the injectors .

Check the fuel pressure and residual pressure according to Measuring fuel pressure EMS 2000 .

Check the intake system for air leakage according to intake system/leak test .

Continue Refer to «Information»(ref-441343-S12074465442012030900000)

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

Engine Control Module (ECM) Diagnostic Trouble Codes - 1 of 3: Other Volvo V40 I рестайлинг

Verification

Scheme 99

Scheme 100

Scheme 101

Fault-tracing information

Signal missing. Permanent fault

Signal too high. Intermittent fault

Defective heated oxygen sensor (HO2S)

Checking the signal cable

Signal too high. Permanent fault

Signal too low. Intermittent fault

Checking intake system

Signal too low. Permanent fault

Signal missing. Intermittent fault

Faulty signal. Permanent fault

Faulty signal. Intermittent fault

Checking the power cable

Scheme 102

Checking the heated oxygen sensor (HO2S)

Replacing the component

Information missing

Checking the connectors and components

Checking connectors and components

Checking injectors

Defective injector

Checking cables

Lean. Intermittent fault

Lean. Permanent fault

Rich. Intermittent fault

Rich. Permanent fault

Scheme 103

Faulty signal

Checking the terminal

Checking the turbocharger (TC) control valve

Checking the power supply

Defective turbocharger (TC) control valve

Checking the turbocharger (TC) control system

Checking the component

Checking for air leakage and the turbocharger (TC) control system

Checking the cable and component

Checking the connector

Checking the ground lead

Defective camshaft position (CMP) sensor

Checking ignition coil

Checking terminals

Checking the ignition coil

Checking ground leads

Defective knock sensor (KS)

Internal fault. Intermittent fault

Defective control module I

Internal fault. Permanent fault

Checking the fuel injection system, ignition system and components

More articles — Engine Control Module (ECM) Diagnostic Trouble Codes - 1 of 3

Login / Signup

Enter the code

You have successfully logged in!