Permanent fault, signal too low
See PERMANENT FAULT, SIGNAL TOO LOW
See PERMANENT FAULT, SIGNAL TOO LOW
Fault-tracing information
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).
Defective air conditioning (A/C) condenser fan relay
Try a new air conditioning (A/C) condenser fan relay.
- Continue Refer to «Verification»(ref-441352-S23527384302011121500000)
Scheme 170
Scheme 171
- Reconnect the connectors, reinstall components etc.
- Connect VCT2000
- Ignition on. Activate the air conditioning (A/C) condenser fan using VCT2000 according to «Activating components/functions»(ref-461610-S42689319562012040200000) .
Does the air conditioning (A/C) condenser fan relay click when it is activated?
- YES OKAY: Troubleshooting has been completed.
- NO Refer to «Information»(ref-441352-S07065886492011121500000)
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).
Checking the power supply
- Ignition off
- Disconnect air conditioning (A/C) condenser fan relay 2/13
- Ignition on. Connect a voltmeter between air conditioning (A/C) condenser fan relay base terminal #1 and ground.
The voltmeter should read battery voltage.
- OK Refer to «Checking the signal cable»(ref-441352-S04741846932011121500000)
- NOT OK Refer to «Checking the power supply»(ref-441352-S42903638812011121500000)
Checking the signal cable
- Ignition off. Connect an ohmmeter between air conditioning (A/C) condenser fan relay base terminal #2 and ground.
The ohmmeter should read infinite resistance.
- OK Refer to «Checking the air conditioning (A/C) condenser fan relay»(ref-441352-S12296135542011121500000)
- NOT OK Refer to «Checking the signal cable»(ref-441352-S02725020582011121500000)
Checking the air conditioning (A/C) condenser fan relay
Connect an ohmmeter between the air conditioning (A/C) condenser fan relay terminals #1 and #2 (relay side).
The ohmmeter should read approximately 105 ohms at +20 °C.
- OK Refer to «Checking the signal cable»(ref-441352-S36477381452011121500000)
- NOT OK Refer to «Defective air conditioning (A/C) condenser fan relay»(ref-441352-S09772770522011121500000)
- Ignition off. Check the cable between air conditioning (A/C) condenser fan relay base terminal #2 and engine control module (ECM) connector terminal #69 for an open-circuit according to «Open-circuit, permanent faults»(ref-441291-S38831997352011121500000) . Remedy as necessary.
- Continue Refer to «Verification»(ref-441352-S00485173782011121500000)
Try a new air conditioning (A/C) condenser fan relay.
- Continue Refer to «Verification»(ref-441352-S00485173782011121500000)
Check the cable between air conditioning (A/C) condenser fan relay base terminal #2 and the engine control module (ECM) connector terminal #69 for a short-circuit to ground according to Short-circuit to ground, permanent faults .
Remedy as necessary.
- Continue Refer to «Verification»(ref-441352-S00485173782011121500000)
- Ignition on. Check the cable between air conditioning (A/C) condenser fan relay base terminal #1 and fuse 9 for an open-circuit according to «Open-circuit, permanent faults»(ref-441291-S38831997352011121500000) . Remedy as necessary.
- Continue Refer to «Verification»(ref-441352-S00485173782011121500000)
Verification
- Reconnect the connectors, reinstall components etc.
- Connect VCT 2000
- Ignition on. Activate the air conditioning (A/C) condenser fan using VCT 2000 according to «Activating components/functions»(ref-461610-S42689319562012040200000) .
Does the air conditioning (A/C) condenser fan start?
- YES OKAY: Troubleshooting has been completed.
- NO Refer to «Information»(ref-441352-S20489609042011121500000)
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. Intermittent fault
See Signal too high. Intermittent fault
See Signal too high. Intermittent fault
Signal too high. Permanent fault
See Signal too high. Permanent fault
See Signal too high. Permanent fault
Signal too low. Intermittent fault
See Signal too low. Intermittent fault
See Signal too low. Intermittent fault
Checking the fuse
- Ignition off. Check that fuse 30 the integrated relay / fusebox in the engine compartment is intact. Replace if necessary. Other information To access or replace the relay or fuse, see the inside of the cover on the engine compartment relay/fusebox .
Was a fault detected?
- YES Refer to «Verification»(ref-441352-S09558722932011121500000)
- NO Refer to «Checking the power supply»(ref-441352-S35461329992011121500000)
- Ignition off
- Disconnect air conditioning (A/C) relay 2/10
- Ignition on. Connect a voltmeter between air conditioning (A/C) relay base terminal #1 and ground.
The voltmeter should read battery voltage.
- OK Refer to «Checking the signal cable»(ref-441352-S12217186602011121500000)
- NOT OK Refer to «Checking the signal cable»(ref-441352-S15190412192011121500000)
- Ignition off. Connect an ohmmeter between air conditioning (A/C) relay base terminal #2 and ground.
The ohmmeter should read infinite resistance.
- OK Refer to «Checking the air conditioning (A/C) relay»(ref-441352-S36861487982011121500000)
- NOT OK Refer to «Checking the signal cable»(ref-441352-S07523441362011121500000)
Checking the air conditioning (A/C) relay
Connect an ohmmeter between the air conditioning (A/C) relay terminals #1 and #2 (relay side).
The ohmmeter should read approximately 105 ohms at +20 °C.
- OK Refer to «Checking the signal cable»(ref-441352-S28451253502011121500000)
- NOT OK Refer to «Defective air conditioning (A/C) relay»(ref-441352-S11027268792011121500000)
- Ignition off. Check the cable between air conditioning (A/C) system relay base terminal #2 and engine control module (ECM) connector terminal #68. Check for an open-circuit according to «Open-circuit, permanent faults»(ref-441291-S38831997352011121500000) . Remedy as necessary.
- Continue Refer to «Verification»(ref-441352-S09558722932011121500000)
Defective air conditioning (A/C) relay
Try a new air conditioning (A/C) relay.
Scheme 172
- Continue Refer to «Verification»(ref-441352-S09558722932011121500000)
Check the cable between air conditioning (A/C) system relay base terminal #2 and engine control module (ECM) connector terminal #68. Check for a short-circuit to ground according to Short-circuit to ground, permanent faults .
Remedy as necessary.
- Continue Refer to «Verification»(ref-441352-S09558722932011121500000)
Check the cable between air conditioning (A/C) system relay base terminal #2 and engine control module (ECM) connector terminal #68. Check for a short-circuit to ground according to Short-circuit to ground, permanent faults .
Remedy as necessary.
- Continue Refer to «Verification»(ref-441352-S09558722932011121500000)
- Reconnect the connectors, reinstall components etc.
- Connect VCT2000
- Ignition on. Activate the air conditioning (A/C) relay using VCT2000 according to «Description of activations»(ref-441338-S37270559222011121500000) .
Does the air conditioning (A/C) relay click?
- YES OKAY: Troubleshooting has been completed.
- NO Refer to «Information»(ref-441352-S17689337932011121500000)
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).
See Signal too high. Intermittent fault
See Signal too high. Intermittent fault
Checking the engine cooling fan (FC) relay
- Ignition off
- Disconnect engine cooling fan (FC) relay 2/11. Connect an ohmmeter between engine cooling fan (FC) relay terminals #1 and #2 (relay side). Other information To access or replace the relay or fuse, see the inside of the cover on the engine compartment relay/fusebox .
The ohmmeter should read approximately 105 ohms at +20 °C.
- OK Refer to «Checking the signal cable»(ref-441352-S05902466382011121500000)
- NOT OK Refer to «Defective engine cooling fan (FC) relay»(ref-441352-S01641801322011121500000)
- Ignition on. Check the cable between engine cooling fan (FC) relay base terminal #2 and engine control module (ECM) connector terminal #38. 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-441352-S42878865132011121500000)
Defective engine cooling fan (FC) relay
Try a new engine cooling fan (FC) relay.
- Continue Refer to «Verification»(ref-441352-S42878865132011121500000)
- Reconnect the connectors, reinstall components etc.
- Connect VCT2000
- Ignition on. Activate the engine cooling fan (FC) low-speed using VCT2000 according to «Description of activations»(ref-461610-S03443565832012040200000) .
Is there a clicking sound when the engine cooling fan (FC) relay is activated?
- YES OKAY: Troubleshooting has been completed.
- NO Refer to «Information»(ref-441352-S29222654092011121500000)
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 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
See Signal too low. Intermittent fault
Checking engine cooling fan (FC) relay
- Ignition off
- Disconnect engine cooling fan (FC) relay 2/10. Connect an ohmmeter between the engine cooling fan (FC) relay terminals 1 and 2 (relay side).
The ohmmeter should read approximately 105 ohms at +20 °C.
- OK Refer to «Checking the signal cable»(ref-441352-S36508298182011121500000)
- NOT OK Refer to «Defective engine cooling fan (FC) relay»(ref-441352-S31798689322011121500000)
- Ignition on. Check the cable between the engine cooling fan (FC) relay base terminal 2 and the engine control module (ECM) connector terminal 38 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-441352-S22633305062011121500000)
Try a new engine cooling fan (FC) relay.
- Continue Refer to «Verification»(ref-441352-S22633305062011121500000)
- Reconnect the connectors, reinstall components etc.
- Connect VCT 2000
- Ignition on. Activate the engine cooling fan (FC) low-speed using VCT 2000 according to «Description of activations»(ref-441338-S37270559222011121500000) .
Does the engine cooling fan (FC) start?
- YES OKAY: Troubleshooting has been completed.
- NO Refer to «Information»(ref-441352-S16994017642011121500000)
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 fuse for the circuit in the integrated relay / fusebox in the engine compartment. Replace if necessary. Other information To access or replace the relay or fuse, see the inside of the cover on the engine compartment relay/fusebox .
Was a fault detected?
- YES Refer to «Verification»(ref-441352-S15603441252011121500000)
- NO Refer to «Checking the engine cooling fan (FC) relay»(ref-441352-S33334684612011121500000)
- Ignition off
- Disconnect engine cooling fan (FC) relay 2/10. Connect an ohmmeter between engine cooling fan (FC) relay terminals #1 and #2 (relay side). Other information To access or replace the relay or fuse, see the inside of the cover on the engine compartment relay/fusebox .
The ohmmeter should read approximately 105 ohms at +20 °C.
- OK Refer to «Checking the signal cable»(ref-441352-S08636457842011121500000)
- NOT OK Refer to «Defective engine cooling fan (FC) relay»(ref-441352-S09541094392011121500000)
- Ignition on. Check the cable between engine cooling fan (FC) relay base terminal #2 and engine control module (ECM) connector terminal #38. 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-441352-S15603441252011121500000)
Try a new engine cooling fan (FC) relay.
- Continue Refer to «Verification»(ref-441352-S15603441252011121500000)
- Reconnect the connectors, reinstall components etc.
- Connect VCT2000
- Ignition on. Activate the engine cooling fan (FC) low-speed using VCT2000 according to «Description of activations»(ref-441338-S37270559222011121500000) .
Does the engine cooling fan (FC) start?
- YES OKAY: Troubleshooting has been completed.
- NO Refer to «Information»(ref-441352-S41095443862011121500000)
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 Signal too high. Intermittent fault
See Signal too high. Intermittent fault
Try a new engine cooling fan (FC) relay.
- Continue Refer to «Verification»(ref-441352-S25329091392011121500000)
- Reconnect the connectors, reinstall components etc.
- Connect VCT2000
- Ignition on. Activate the engine cooling fan (FC) high-speed using VCT2000 according to «Description of activations»(ref-461610-S03443565832012040200000) .
Is there a clicking sound when the engine cooling fan (FC) relay is activated?
- YES OKAY: Troubleshooting has been completed.
- NO Refer to «Information»(ref-441352-S15661669662011121500000)
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 high. Permanent fault
Checking cables
Check that the resistance between relay terminals 1 and 2 is approximately 75 ohms at +20 °C.
Check the signal cable between engine control module (ECM) #38 (half speed), #8 (full speed), #69 (air conditioning (A/C) cooling fan) and relay terminal 2 for an intermittent short-circuit to ground and remedy according to Short-circuit to ground, intermittent faults and for an intermittent open-circuit according to Open-circuit, intermittent faults .
Other information
- To connect the breakout box, see «Connecting the breakout box. EMS 2000»(ref-441291-S13587040122011121500000) .
- Continue Refer to «Information»(ref-441352-S17591383432011121500000)
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. Intermittent fault
- Ignition off. Check that fuse 15 in the integrated relay / fusebox in the engine compartment is intact. Replace if necessary.
Was a fault detected?
- YES Refer to «Verification»(ref-441352-S05207557132011121500000)
- NO Refer to «Checking the power supply»(ref-441352-S32167609612011121500000)
Scheme 173
- Ignition off
- Disconnect engine cooling fan (FC) relay 2/15
- Ignition on. Connect a voltmeter between engine cooling fan (FC) relay base terminal #1 and ground.
The voltmeter should read battery voltage.
- OK Refer to «Checking the signal cable»(ref-441352-S07013686522011121500000)
- NOT OK Refer to «Checking the power supply»(ref-441352-S21918025472011121500000)
- Ignition off. Connect a voltmeter between engine cooling fan (FC) relay base terminal #2 and ground.
The ohmmeter should read infinite resistance.
- OK Refer to «Checking the engine cooling fan (FC) relay»(ref-441352-S12035239692011121500000)
- NOT OK Refer to «Checking the signal cable»(ref-441352-S04978065982011121500000)
Connect an ohmmeter between the engine cooling fan (FC) relay terminals #1 and #2 (relay side).
The ohmmeter should read approximately 75 ohms at +20 °C.
- OK Refer to «Checking the signal cable»(ref-441352-S15213529242011121500000)
- NOT OK Refer to «Defective engine cooling fan (FC) relay»(ref-441352-S32028254212011121500000)
- Ignition off. Check the cable between engine cooling fan (FC) relay terminal #2 and engine control module (ECM) connector terminal #8 for an open-circuit according to «Open-circuit, permanent faults»(ref-441291-S38831997352011121500000) . Remedy as necessary.
- Continue Refer to «Verification»(ref-441352-S05207557132011121500000)
Try a new engine cooling fan (FC) relay.
- Continue Refer to «Verification»(ref-441352-S05207557132011121500000)
Check the cable between engine cooling fan (FC) relay base terminal #2 and engine control module (ECM) connector terminal #8. Check for a short-circuit to ground according to Short-circuit to ground, permanent faults .
Remedy as necessary.
- Continue Refer to «Verification»(ref-441352-S05207557132011121500000)
- Ignition on. Check the cable between engine cooling fan (FC) relay base terminal #1 and fuse 15. Check for an open-circuit according to «Open-circuit, permanent faults»(ref-441291-S38831997352011121500000) . Remedy as necessary.
- Continue Refer to «Verification»(ref-441352-S05207557132011121500000)
- Reconnect the connectors, reinstall components etc.
- Connect VCT 2000
- Ignition on. Activate the engine cooling fan (FC) high-speed using VCT 2000. See «Description of activations»(ref-441338-S37270559222011121500000) .
Does the engine cooling fan (FC) start?
- YES OKAY: Troubleshooting has been completed.
- NO Refer to «Information»(ref-441352-S12856046512011121500000)
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 fuse for the circuit in the integrated relay / fusebox in the engine compartment. Replace if necessary. Other information To access or replace the relay or fuse, see the inside of the cover on the engine compartment relay/fusebox .
Was a fault detected?
- YES Refer to «Verification»(ref-441352-S38531177162011121500000)
- NO Refer to «Checking the power supply»(ref-441352-S21460826922011121500000)
- Ignition off
- Disconnect engine cooling fan (FC) relay 2/15
- Ignition on. Connect a voltmeter between engine cooling fan (FC) relay base terminal #1 and ground. Other information To access or replace the relay or fuse, see the inside of the cover on the engine compartment relay/fusebox .
The voltmeter should read battery voltage.
- OK Refer to «Checking the signal cable»(ref-441352-S21913103112011121500000)
- NOT OK Refer to «Checking the power supply»(ref-441352-S19984184422011121500000)
- Ignition off. Connect a voltmeter between engine cooling fan (FC) relay base terminal #2 and ground.
The ohmmeter should read infinite resistance.
- OK Refer to «Checking the engine cooling fan (FC) relay»(ref-441352-S17670982132011121500000)
- NOT OK Refer to «Checking the signal cable»(ref-441352-S39577314312011121500000)
Connect an ohmmeter between engine cooling fan (FC) relay terminals #1 and #2 (relay side).
The ohmmeter should read approximately 75 ohms at +20 °C.
- OK Refer to «Checking the signal cable»(ref-441352-S42643706122011121500000)
- NOT OK Refer to «Defective engine cooling fan (FC) relay»(ref-441352-S23751567282011121500000)
- Ignition off. Check the cable between engine cooling fan (FC) relay terminal #2 and engine control module (ECM) connector terminal #8 for an open-circuit according to «Open-circuit, permanent faults»(ref-441291-S38831997352011121500000) . Remedy as necessary.
- Continue Refer to «Verification»(ref-441352-S38531177162011121500000)
Try a new engine cooling fan (FC) relay.
- Continue Refer to «Verification»(ref-441352-S38531177162011121500000)
Check the cable between engine cooling fan (FC) relay base terminal #2 and engine control module (ECM) connector terminal #8. Check for a short-circuit to ground according to Short-circuit to ground, permanent faults .
Remedy as necessary.
- Continue Refer to «Verification»(ref-441352-S38531177162011121500000)
- Ignition on. Check the cable between engine cooling fan (FC) relay base terminal #1 and the fuse for the circuit. Check for an open-circuit according to «Open-circuit, permanent faults»(ref-441291-S38831997352011121500000) . Remedy as necessary. Other information To access or replace the relay or fuse, see the inside of the cover on the engine compartment relay/fusebox .
- Continue Refer to «Verification»(ref-441352-S38531177162011121500000)
- Reconnect the connectors, reinstall components etc.
- Connect VCT2000
- Ignition on. Activate the engine cooling fan (FC) high-speed using VCT2000 according to «Description of activations»(ref-441338-S37270559222011121500000) .
Does the engine cooling fan (FC) start?
- YES OKAY: Troubleshooting has been completed.
- NO Refer to «Information»(ref-441352-S20800968782011121500000)
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).
Signal missing. Intermittent fault
See Signal missing. Intermittent fault
See Signal missing. Intermittent fault
Checking idle air control (IAC) valve
- Idle air control (IAC) valve connector disconnected. Connect an ohmmeter between idle air control (IAC) valve connector terminals #1 and #2.
The ohmmeter should read 9-11 ohms.
- OK Refer to «Checking the power supply»(ref-441352-S07416727202011121500000)
- NOT OK Refer to «Defective idle air control (IAC) valve»(ref-441352-S25544888072011121500000)
- Ignition on. Connect a voltmeter between the idle air control (IAC) valve connector terminal #1 (engine control module (ECM) side) and ground.
The voltmeter should read battery voltage for 2 seconds immediately after the ignition is switched on.
- OK Refer to «Checking the signal cable»(ref-441352-S00491332592011121500000)
- NOT OK Refer to «Checking the signal cable»(ref-441352-S26002564972011121500000)
Check the cable between idle air control (IAC) valve connector terminal #2 and engine control module (ECM) connector terminal #64 for an open-circuit according to Open-circuit, permanent faults .
Remedy as necessary.
- Continue Refer to «Verification»(ref-441352-S28027051912011121500000)
Defective idle air control (IAC) valve
Try a new idle air control (IAC) valve according to Replacing the idle air control (IAC) valve .
- Continue Refer to «Verification»(ref-441352-S28027051912011121500000)
Check the cable between idle air control (IAC) valve connector terminal #1 and system relay 2/14 terminal #3 for an open-circuit according to Open-circuit, permanent faults .
Remedy as necessary.
- Continue Refer to «Verification»(ref-441352-S28027051912011121500000)
- Reconnect the connectors, reinstall components etc.
- Connect VCT 2000
- Ignition on. Activate the idle air control (IAC) valve by clicking on the VCT 2000 symbol.
Does the idle air control (IAC) valve click?
- YES OKAY: Troubleshooting has been completed.
- NO Refer to «Information»(ref-441352-S04747476722011121500000)
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.
Checking the terminal
- Ignition off
- Idle air control (IAC) valve connector disconnected. Check the idle air control (IAC) 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-441352-S37631329392011121500000)
- NO Refer to «Checking the idle air control (IAC) valve»(ref-441352-S11548613592011121500000)
Checking the idle air control (IAC) valve
- Idle air control (IAC) valve connector disconnected. Connect an ohmmeter between idle air control (IAC) valve connector terminals 1 and 2.
The ohmmeter should read 9-11 ohms.
- OK Refer to «Checking the power supply»(ref-441352-S24722587332011121500000)
- NOT OK Refer to «Defective idle air control (IAC) valve»(ref-441352-S09931187002011121500000)
- Ignition on. Connect a voltmeter between the idle air control (IAC) valve connector terminal 1 (control module side) and ground.
The voltmeter should read battery voltage for 2 seconds immediately after the ignition is switched on.
- OK Refer to «Checking the signal cable»(ref-441352-S13316794402011121500000)
- NOT OK Refer to «Checking the signal cable»(ref-441352-S14993101362011121500000)
Check the cable between idle air control (IAC) valve connector terminal 2 and engine control module (ECM) connector terminal #64. Check for an open-circuit according to Open-circuit, permanent faults .
Remedy as necessary.
Try a new idle air control (IAC) valve if no fault is found during the above fault-tracing.
Other information
- To replace the idle air control (IAC) valve, see «Replacing the idle air control (IAC) valve»(ref-441341-S41689657072011121500000) .
- Continue Refer to «Verification»(ref-441352-S37631329392011121500000)
Try a new idle air control (IAC) valve according to Replacing the idle air control (IAC) valve .
- Continue Refer to «Verification»(ref-441352-S37631329392011121500000)
Check the cable between idle air control (IAC) valve connector terminal 1 and system relay 2/14 terminal 3. Check for an open-circuit according to Open-circuit, permanent faults .
Remedy as necessary.
- Continue Refer to «Verification»(ref-441352-S37631329392011121500000)
- Reconnect the connectors, reinstall components etc.
- Connect VCT2000
- Ignition on. Click the VCT2000 symbol to activate the idle air control (IAC) valve.
Does the idle air control (IAC) valve click?
- YES OKAY: Troubleshooting has been completed.
- NO Refer to «Information»(ref-441352-S33535568132011121500000)
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).
See Signal too high. Intermittent fault
See Signal too high. Intermittent fault
Check that the resistance of the idle air control (IAC) valve is approximately 10 ohms between terminals #1 and #2.
Check the signal cable between idle air control (IAC) valve terminal #2 and engine control module (ECM) terminal #64. Check for a short-circuit to supply voltage according to Short-circuit to supply voltage. Permanent faults .
Try a new idle air control (IAC) valve if no fault is found during the above fault-tracing.
Other information
- To connect the breakout box, see «Connecting the breakout box. EMS 2000»(ref-441291-S13587040122011121500000)
- To replace the idle air control (IAC) valve, see «Replacing the idle air control (IAC) valve»(ref-441341-S41689657072011121500000) .
- Continue Refer to «Verification»(ref-441352-S29040461712011121500000)
- Reconnect the connectors, reinstall components etc.
- Connect VCT2000
- Ignition on. Click the VCT2000 symbol to activate the idle air control (IAC) valve.
Does the idle air control (IAC) valve click?
- YES OKAY: Troubleshooting has been completed.
- NO Refer to «Information»(ref-441352-S15494181942011121500000)
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
See Signal too low. Intermittent fault
- Ignition off
- Idle air control (IAC) valve disconnected. Check the cable between idle air control (IAC) valve connector terminal 2 (control module side) and engine control module (ECM) terminal 64 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-441352-S22519493342011121500000)
- Ignition off
- Reconnect the connectors, reinstall components etc.
- Connect VCT 2000
- Ignition on. Activate the idle air control (IAC) valve by clicking on the VCT 2000 symbol.
Does the idle air control (IAC) valve click?
- YES OKAY: Troubleshooting has been completed.
- NO Refer to «Information»(ref-441352-S04913028892011121500000)
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
- Idle air control (IAC) valve disconnected. Check the cable between idle air control (IAC) valve connector terminal 2 (control module side) and engine control module (ECM) terminal #64. Check for a short-circuit to ground according to «Short-circuit to ground, permanent faults»(ref-441291-S27984344722011121500000) . Remedy as necessary. Try a new idle air control (IAC) valve if no fault is found during the above fault-tracing. Other information: To replace the idle air control (IAC) valve, see «Replacing the idle air control (IAC) valve»(ref-441341-S41689657072011121500000) .
- Continue Refer to «Verification»(ref-441352-S12671772342011121500000)
- Ignition off
- Reconnect the connectors, reinstall components etc.
- Connect VCT2000
- Ignition on. Click the VCT2000 symbol to activate the idle air control (IAC) valve.
Does the idle air control (IAC) valve click?
- YES OKAY: Troubleshooting has been completed.
- NO Refer to «Information»(ref-441352-S18532046482011121500000)
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 connectors
- Ignition off
- Check the idle air control (IAC) valve and throttle position (TP) sensor connectors for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S41448420802011121500000) . Check for damage carefully
- Check the throttle body (TB) for play between the throttle spindle and the throttle position (TP) sensor according to «Replacing throttle position (TP) sensor»(ref-441335-S28276217162011121500000)
- Check the intake system for air 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) To replace the idle air control (IAC) valve, see «Replacing the idle air control (IAC) valve»(ref-441341-S41689657072011121500000) To replace the throttle position (TP) sensor, see «Replacing throttle position (TP) sensor»(ref-441335-S28276217162011121500000) .
- Continue Refer to «Information»(ref-441352-S09329787532011121500000)
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. Intermittent fault
- Ignition off
- Check the idle air control (IAC) valve and throttle position (TP) sensor connectors. Check for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S41448420802011121500000) . Check for damage carefully.
- Continue Refer to «Checking components»(ref-441352-S15689131092011121500000)
Scheme 174
Scheme 175
- Ignition off
- Reinstall the connectors
- Start the engine. Click on the VCT2000 symbol to read off the value for the throttle angle. Open the throttle slightly and check that the throttle angle signal increases with increased throttle angle. NOTE: In particular, check the signal in the area before closed position. (Close to idling speed). 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) .
Is the throttle position (TP) sensor signal correct?
- YES Refer to «Checking for air leakage»(ref-441352-S04010591162011121500000)
- NO Refer to «Checking the component»(ref-441352-S08835960282011121500000)
Checking the component
Check the throttle body (TB) for play between the throttle spindle and the throttle position (TP) sensor.
Remedy as necessary.
Try a new throttle position (TP) sensor if no fault is found during the above fault-tracing.
Other information
- To check and replace the throttle position (TP) sensor, see «Replacing throttle position (TP) sensor»(ref-441335-S28276217162011121500000) .
- Continue Refer to «Verification»(ref-441352-S23584507932011121500000)
Checking for air leakage
- Check the intake system for air leakage according to «intake system/leak test»(ref-441340-S18786781872011121500000)
- Replace the idle air control (IAC) valve if no air leakage is found in the above fault-tracing. See «Replacing the idle air control (IAC) valve»(ref-441341-S41689657072011121500000) .
- Continue Refer to «Verification»(ref-441352-S23584507932011121500000)
HINT: After carrying out the repair, check that the fault has been remedied.
- Reinstall the components, reconnect the connectors etc.
- Start the engine and run it to normal operating temperature. Let the engine idle. Read off the engine speed (RPM) by clicking the symbol for VCT-2000 Check that the idling speed is be approximately 750 RPM
Is the idling speed correct?
- YES VERIFIED: Troubleshooting has been completed.
- NO Refer to «Information»(ref-441352-S19951499242011121500000)
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 high. Permanent fault
- Ignition off
- Check the idle air control (IAC) valve and throttle position (TP) sensor connectors for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S41448420802011121500000) . Check for damage carefully
- Remove the idle air control (IAC) valve according to «Replacing the idle air control (IAC) valve»(ref-441341-S41689657072011121500000) . Check if the hoses and ducts for the idling system and throttle angle are blocked. 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 idle air control (IAC) valve, see «Replacing the idle air control (IAC) valve»(ref-441341-S41689657072011121500000) .
- Continue Refer to «Information»(ref-441352-S21546961032011121500000)
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. Intermittent fault
- Ignition off
- Check the idle air control (IAC) valve and throttle position (TP) sensor connectors for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S41448420802011121500000) . Check for damage carefully
- Remove the idle air control (IAC) valve according to «Replacing the idle air control (IAC) valve»(ref-441341-S41689657072011121500000) . Check if the hoses and ducts for the idling system and throttle angle are blocked
- Try a new idle air control (IAC) valve if no fault is found during the above fault-tracing. 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 «Verification»(ref-441352-S41186906162011121500000)
HINT: After carrying out the repair, check that the fault has been remedied.
- Reinstall the components, reconnect the connectors etc.
- Start the engine and run it to normal operating temperature. Let the engine idle. Read off the engine speed (RPM) by clicking the symbol for VCT-2000 Check that the idling speed is be approximately 750 RPM
Is the idling speed correct?
- YES VERIFIED: Troubleshooting has been completed.
- NO Refer to «Information»(ref-441352-S35009106912011121500000)
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 low. Permanent fault
Checking the DSA system
Read off diagnostic trouble codes (DTCs) in the DSA system.
This is carried out via VIDA communication
Read off diagnostic trouble codes (DTCs) in the DSA system.
This is carried out via VIDA communication
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
See Faulty signal. Intermittent fault
- Ignition off
- Reconnect the connectors, reinstall components etc.
- Start the engine. Read off diagnostic trouble codes (DTCs).
Did the status change to intermittent?
- YES OKAY: Troubleshooting has been completed.
- NO Refer to «Information»(ref-441352-S28456676582011121500000)
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
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).
Initiation fault. Intermittent fault
See Initiation fault. Intermittent fault
See Initiation fault. Intermittent fault
Checking terminals
- Ignition off.
- Disconnect the engine control module (ECM) and DSA control module connectors. Check the connectors 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-441352-S28286012052011121500000)
- NO Refer to «Faulty signal»(ref-441352-S03094484812011121500000)
- Ignition off.
- Reconnect the connectors, reinstall components etc.
- Connect VCT 2000.
- Start and stop the engine a few times. Read off diagnostic trouble codes (DTCs).
Has the diagnostic trouble code (DTC) ECM-91 changed status to intermittent?
- YES OKAY: Troubleshooting has been completed.
- NO Refer to «Information»(ref-441352-S07458473032011121500000)
Scheme 176
- Ignition off.
- Start and stop the engine a few times.
- Let the engine idle. Read off diagnostic trouble codes (DTCs).
Is diagnostic trouble code (DTC) DSA-223 still stored?
- YES Refer to «Checking the DSA control module»(ref-441352-S40311751522011121500000)
- NO Refer to «Faulty signal. Intermittent fault»(ref-441352-S21213531392011121500000)
Checking the DSA control module
- Ignition off.
- Expose the DSA control module.
- Disconnect the DSA control module.
- Connect a new DSA control module alongside.
- Start and stop the engine a few times.
- Let the engine idle. Read off diagnostic trouble codes (DTCs).
Is diagnostic trouble code (DTC) DSA-223 still stored?
- YES Refer to «Replacing the component»(ref-441352-S26180494392011121500000)
- NO Refer to «Replacing the component»(ref-441352-S42925328992011121500000)
Replacing the component
The old DSA control module is OK: Reinstall it.
Note. It is vital that any diagnostic trouble codes (DTCs) in the engine control module (ECM) and the DSA control module are remedied before the engine control module (ECM) is replaced.
FENIX 5.1
- Try a new engine control module (ECM) according to «Replacing engine control module (ECM)»(ref-461604-S40149723142012040200000) .
EMS 2000
- Try a new engine control module (ECM) according to «Replacing the engine control module (ECM)»(ref-441352-S40633011892012032800000) .
- Continue Refer to «Verification»(ref-441352-S38813593842011121500000)
The old DSA control module is defective.
Install the new DSA control module according to DSA control module, replacement .
Scheme 177
- Continue Refer to «Verification»(ref-441352-S38813593842011121500000)
Before replacing engine control module (ECM)
Before the engine control module is replaced, the VIN code in the old engine control module must be deleted.
The code is deleted using VIDA vehicle communication system Immobilizer Group 3(36) S40/V40. If the code is not deleted, the old engine control module cannot be tested if it has been returned as part of a warranty claim. In addition, it cannot be used in another car.
This is because the engine control module has learned a unique VIN code from the immobilizer system in the car in which it was originally installed.
Once the VIN code from the immobilizer system is programmed, the engine control module can only be used with that specific immobilizer module until the VIN code in the engine control module is deleted.
Note. VIN code deletion is only possible together with the immobilizer module whose VIN code is programmed in the engine control module.
Delete the VIN code in the engine control module as per the system Immobilizer Group 3(36) S40/V40. The PIN code required for this measure can only be obtained from the Volvo central vehicle register. Use the same routine as when ordering a mechanical key code.
Note. Always check that deletion was successful. This is done by reading out the parameter VIN PROGRAMMED in VIDA vehicle communication EMS 2000 Group 2(23,28) S40/V40. If deletion was successful, the parameter indicates NO. Do as follows Engine management system EMS 2000 Turn off the ignition for 30 seconds and then turn it back on (if the electric cooling fan is running, wait until it has stopped and then wait an additional 30 seconds). Then read out the parameter VIN PROGRAMMED. When the parameter indicates NO, turn off the ignition and disconnect the engine control module. Do not start the engine as this will cause the engine control module to relearn the VIN code.
HINT: The spare part control module is unprogrammed (virgin mode). If the right PIN codes are not programmed, the MIL lamp will illuminate.
Scheme 178
Always check that the control module and control module box connector pins and sleeves are not bent or damaged. This may have caused the fault.
Removing control module
As part of the anti-theft protection on cars with electronic immobilizer, the control module box is locked with a lock strap. A shear screw is used to install the lock strap.
- Mark the center of the shear screw and drill a hole of a suitable diameter for a screw puller.
- Fit the screw puller and remove the screw.
Scheme 179
- Check that no pins or sockets are damaged on the connector.
- Install the new control module.
Control module programming (model year 1999 only)
After control module the control module is installed, PIN codes must be programmed. The car's PIN codes are stored in the Volvo central vehicle register. Contact your sales company to obtain the codes.
Note. A new control module that has been installed in a car and programmed is only suitable for the car it is in. The engine control module may not be transferred to another car.
VIDA vehicle communication is used for control module programming.
Control module programming (model year 2000 only)
Ordering software
Order the software. See 9139873 .
Installing engine control module, continued
As part of the anti-theft protection on cars with electronic immobilizer, the control module box is locked with a lock strap. A shear screw is used to install the lock strap.
Note. Do not reinstall the lock strap until the car has been repaired and all faults have been remedied.
- Fit the lock strap using a new shear screw (part no. 980471-7) and tighten the screw so that the head is sheared off.
HINT: After carrying out the repair, check that the fault has been remedied.
- Ignition off.
- Reconnect the connectors, reinstall components etc.
- DSA control module connected.
- Start and stop the engine a few times.
- Let the engine idle. Read off diagnostic trouble codes (DTCs).
Is diagnostic trouble code (DTC) DSA-223 still stored?
- YES Refer to «Information»(ref-441352-S07458473032011121500000)
- NO VERIFIED: Troubleshooting has been completed.
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).
Initiation fault. Permanent fault
See Initiation fault. Permanent fault
See Initiation fault. 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
See Signal missing. Intermittent fault
- Ignition off
- Reconnect the connectors, reinstall components etc.
- Start the engine. Read off diagnostic trouble codes (DTCs).
Did the status change to intermittent?
- YES OKAY: Troubleshooting has been completed.
- NO Refer to «Information»(ref-441352-S05614272162011121500000)
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 missing. Permanent fault
Information
No fault-tracing has been developed for the diagnostic trouble code (DTC) for this fault. The diagnostic trouble code (DTC) may also be stored in another system for which there are fault-tracing procedures. Read off diagnostic trouble codes (DTCs) from the affected system. Fault-trace the system. For further information about this diagnostic trouble code (DTC), select Information, then DTC information.
See Fault-tracing information
See Fault-tracing information
No fault-tracing has been developed for this diagnostic trouble code (DTC). The diagnostic trouble code (DTC) may also be stored in another system for which there are fault-tracing procedures. Read off diagnostic trouble codes (DTCs) from the affected system. Fault-trace the system. For further information about this diagnostic trouble code (DTC), select Information, then DTC information.
Faulty VIN
See Faulty VIN
See Faulty VIN
The diagnostic trouble code (DTC) indicates that the control module has previously registered an intermittent fault, but that the fault is no longer present.
Internal fault. Intermittent fault
See Internal fault. Intermittent fault
See Internal fault. Intermittent fault
Defective control module I
Replace the engine control module (ECM) according to Engine control module (ECM), replacing .
Internal fault. Permanent fault
See Internal fault. Permanent fault
See Internal fault. 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
See Faulty signal. Intermittent fault
In case of this defect, troubleshooting is not followed by verification.
The information can be displayed again or the fault-tracing for this fault can be interrupted.
See 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).
See Faulty signal. Intermittent fault
See Faulty signal. Intermittent fault
- Ignition off
- Check the engine coolant temperature (ECT) sensor and engine control module (ECM) connectors for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S41448420802011121500000)
- Remedy as necessary. Other information To access the engine control module (ECM), see «Engine control module (ECM), replacing»(ref-441335-S25586099582011121500000) .
Was a fault detected?
- YES Refer to «Verification»(ref-441352-S31284483562011121500000)
- NO Refer to «Checking component»(ref-441352-S04843631462011121500000)
Checking component
- Remove the thermostat and check it according to «Checking / replacing the thermostat»(ref-441342-S09847505492011121500000)
- Replace the thermostat if there is any doubt about its function.
Was a fault found in the thermostat?
- YES Refer to «Verification»(ref-441352-S31284483562011121500000)
- NO Refer to «Replacing the engine coolant temperature (ECT) sensor»(ref-441352-S01235463312011121500000)
Replacing the engine coolant temperature (ECT) sensor
- If the function of the thermostat is correct, try a new engine coolant temperature (ECT) sensor according to «Replacing the engine coolant temperature (ECT) sensor»(ref-441342-S14721213142011121500000) .
- Continue Refer to «Verification»(ref-441352-S31284483562011121500000)
HINT: After carrying out the repair, check that the fault has been remedied.
- Reinstall the components, reconnect the connectors etc.
- Start the engine. Click on the VCT2000 symbol to read off the engine coolant temperature (ECT) Check that the engine coolant temperature (ECT) increases normally and that the engine reaches operating temperature
Is the engine coolant temperature (ECT) correct?
- YES VERIFIED: Troubleshooting has been completed.
- NO Refer to «Information»(ref-441352-S27361728432011121500000)
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 Faulty signal. Permanent fault
See Faulty signal. Intermittent fault
See Faulty signal. Intermittent fault
See Faulty signal. Intermittent fault
See Faulty signal. Permanent fault
See 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).
See Signal too high. Intermittent fault
Check the cable between the system relay block terminal 3 and engine control module (ECM) terminal 66 for a short-circuit to supply voltage according to Short-circuit to supply voltage. Permanent faults .
- Continue Refer to «Verification»(ref-441352-S32674742952011121500000)
Defective system relay
Try a new system relay.
- Continue Refer to «Verification»(ref-441352-S32674742952011121500000)
- Ignition off
- Reconnect the connectors, reinstall components etc.
- Connect VCT 2000
- Ignition on. Replace the system relay.
Was a clear click sound heard from the system relay?
- YES OKAY: Troubleshooting has been completed.
- NO Refer to «Information»(ref-441352-S25946131102011121500000)
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.
- 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-441352-S26889945022011121500000)
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
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. Intermittent fault
- Ignition off
- Remove system relay 2/14 from the integrated relay / fusebox in the engine compartment. Using a voltmeter, measure the voltage between system relay base terminal 5 and ground.
The voltmeter should read battery voltage.
- OK Refer to «Checking the power cable»(ref-441352-S30429406722011121500000)
- NOT OK Refer to «Checking cables»(ref-441352-S17869968942011121500000)
Checking the power cable
- Bridge the system relay base terminal 3 to 5 with a piece of electrical cable
- Ignition on. Read off parameter BATTERY.
The parameter should display battery voltage.
- OK Refer to «Verification»(ref-441352-S09455181532011121500000)
- NOT OK Refer to «Checking cables»(ref-441352-S17869968942011121500000)
Check the cable between fuse no. 13 in the integrated relay / fusebox in the engine compartment and the system relay base terminal 5 for an open-circuit according to Open-circuit, permanent faults .
- Continue Refer to «Verification»(ref-441352-S09455181532011121500000)
- Ignition off
- Reconnect the connectors, reinstall components etc.
- Start the engine. Read off parameter BATTERY.
Is the value OK?
- YES OKAY: Troubleshooting has been completed.
- NO Refer to «Information»(ref-441352-S41029151152011121500000)
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.
- 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-441352-S28943471652011121500000)
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 Signal too high. Intermittent fault
HINT: After carrying out the repair, check that the fault has been remedied.
- Reinstall the components, reconnect the connectors etc.
- Ignition on. Read off boost pressure sensor 1 Check that the signal is correct. The reading must be approximately 1000 mbar. The value varies according to other circumstances dependent on the air pressure
Is the value correct?
- YES VERIFIED: Troubleshooting has been completed.
- NO Refer to «Information»(ref-441352-S28766878912011121500000)
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
Checking the connector
- Ignition off
- Check the connector on boost pressure sensor 1. Check for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S41448420802011121500000)
- Reinstall the components, reconnect the connectors etc.
- Ignition on
- Read off the signal from the boost pressure sensor 1. Check that the signal is correct. The reading must be approximately 1000 mbar. The value varies according to other circumstances dependent on the air pressure. If the signal is now OK, the fault was caused by poor contact in the connector. Other information See «Boost pressure sensor 1, replacing»(ref-441339-S06643094402011121500000)
Is the signal OK?
- YES OKAY: Troubleshooting has been completed.
- NO Refer to «Checking the wiring and component»(ref-441352-S08665629602011121500000)
HINT: After carrying out the repair, check that the fault has been remedied.
- Reinstall the components, reconnect the connectors etc.
- Ignition on. Read off boost pressure sensor 1 Check that the signal is correct. The reading must be approximately 1000 mbar. The value varies according to other circumstances dependent on the air pressure
Is the value correct?
- YES VERIFIED: Troubleshooting has been completed.
- NO Refer to «Information»(ref-441352-S38182795542011121500000)
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 Signal too high. Intermittent fault
Checking the boost pressure sensor signal
- Ignition on
- Activate the read off for the programmed values
- Check that the value from the boost pressure sensor does not deviate from the manifold absolute pressure (MAP) sensor by more than 200 mbar. The value for the manifold absolute pressure (MAP) sensor is used as a reference value for this test. Select one of the following alternatives to continue: The value of boost pressure sensor 1 (BOP) deviates more than 200 mbar from the value of boost pressure sensor 2 (MAP). Refer to «Replacing the component»(ref-441352-S26262753042011121500000) The values for the boost pressure sensors are approximately the same. Refer to «Checking the connectors and the boost pressure system»(ref-441352-S10190301272011121500000)
Checking the connectors and the boost pressure system
- Ignition off. Check the connector on the boost pressure sensor. Check for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S41448420802011121500000) . 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 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) . Check in particular the hoses and the function of the pressure regulator. Try a new boost pressure sensor if no fault is found during the above fault-tracing. Remedy as necessary. Other information See «Boost pressure sensor 1, replacing»(ref-441339-S06643094402011121500000)
- Continue Refer to «Verification»(ref-441352-S04582309892011121500000)
- Ignition off
- Check the connector on the boost pressure sensor and the control module. Check for contact resistance and oxidation according to «Contact resistance and oxidation»(ref-441291-S41448420802011121500000) . Try a new boost pressure sensor if no fault is found in the connectors. Other information See «Boost pressure sensor 1, replacing»(ref-441339-S06643094402011121500000)
- Continue Refer to «Verification»(ref-441352-S37903471742011121500000)
- Reinstall the connectors
- Ignition on. Read off the boost pressure sensor and atmospheric pressure sensor values. Check that the boost pressure sensor value does not deviate from the atmospheric pressure sensor value by more than 200 mbar. The value for the atmospheric pressure sensor is used as a reference value for this test. Try a new boost pressure sensor if the boost pressure sensor value does not correspond to the atmospheric pressure sensor value to an accuracy of 200 mbar.
- Continue Refer to «Verification»(ref-441352-S37903471742011121500000)
HINT: After carrying out the repair, check that the fault has been remedied.
- Reinstall the components, reconnect the connectors etc.
- Ignition on. Read off boost pressure sensor 2 (MAP sensor) and boost pressure sensor 1 Check that the boost pressure valve values are the same. Check that the boost pressure sensor values are within 200 mbar of each other
Are the values for the boost pressure sensors approximately the same?
- YES VERIFIED: Troubleshooting has been completed.
- NO Refer to «Information»(ref-441352-S35100735472011121500000)
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-441352-S35100735472011121500000)
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 boost pressure sensor and the engine control module (ECM). 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) . Check for damage carefully. Other information: To connect the breakout box, see «Connecting the breakout box. EMS 2000»(ref-441291-S13587040122011121500000) See «Signal specification»(ref-441338-S16642011902011121500000) See «Boost pressure sensor 1, replacing»(ref-441339-S06643094402011121500000)
- Continue Refer to «Information»(ref-441352-S31704314842011121500000)
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 signals for the boost pressure sensors
- Reinstall the connectors
- Ignition on. Activate the read off for the programmed values. Check that the value from the boost pressure sensor does not deviate from the manifold absolute pressure (MAP) sensor by more than 200 mbar. The value for the manifold absolute pressure (MAP) sensor is used as a reference value for this test.
Is the value OK?
- YES OKAY: Troubleshooting has been completed.
- NO Refer to «Checking the boost pressure sensor signal»(ref-441352-S35720462242011121500000)
Try a new boost pressure sensor if the values for the sensors do not correspond.
Other information
- See «Boost pressure sensor 1, replacing»(ref-441339-S06643094402011121500000)
Select continue when the defect has been remedied.
- Continue Refer to «Verification»(ref-441352-S01424801142011121500000)
HINT: After carrying out the repair, check that the fault has been remedied.
- Reinstall the components, reconnect the connectors etc.
- Ignition on. Read off boost pressure sensor 2 (MAP sensor) and boost pressure sensor 1 Check that the boost pressure valve values are the same. Check that the boost pressure sensor values are within 200 mbar of each other
Are the values for the boost pressure sensors approximately the same?
- YES VERIFIED: Troubleshooting has been completed.
- NO Refer to «Information»(ref-441352-S04075964282011121500000)
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 Signal missing. Intermittent fault
See Signal missing. Intermittent fault
HINT: After carrying out the repair, check that the fault has been remedied.
Note. This test cannot be performed if there are diagnostic trouble codes (DTCs) stored in EMS2000.
- Reinstall the components, reconnect the connectors etc.
- Ignition on
- Check that no other diagnostic trouble codes (DTCs) are stored. If other diagnostic trouble codes (DTCs) are stored, these must be remedied and erased first.
Are any other diagnostic trouble codes (DTCs) stored?
- YES Refer to «Fault-tracing information»(ref-441352-S20416167852011121500000)
- NO Refer to «Activating the leak diagnostic»(ref-441352-S38793517722011121500000)
- The control module has detected a fault other than the one that affects the relevant diagnostic trouble code (DTC). This may be because a fault occurred during the fault-tracing. Check that the hoses, connectors and components etc. have been correctly reinstalled. Check that they are not damaged.
- This diagnostic trouble code (DTC) cannot be verified before other DTCs have been remedied and erased
- Fault-trace, remedy and erase other diagnostic trouble codes (DTCs) first. Then select this diagnostic trouble code (DTC) to perform verification.
- Continue Refer to «Information»(ref-441352-S02088169432011121500000)
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 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
See Signal too high. Intermittent fault
HINT: After carrying out the repair, check that the fault has been remedied.
Note. This test cannot be performed if there are diagnostic trouble codes (DTCs) stored in EMS2000.
- Reinstall the components, reconnect the connectors etc.
- Ignition on
- Check that no other diagnostic trouble codes (DTCs) are stored. If other diagnostic trouble codes (DTCs) are stored, these must be remedied and erased first.
Are any other diagnostic trouble codes (DTCs) stored?
- YES Refer to «Fault-tracing information»(ref-441352-S12523671312011121500000)
- NO Refer to «Activating the leak diagnostic»(ref-441352-S24721701412011121500000)
- The control module has detected a fault other than the one that affects the relevant diagnostic trouble code (DTC). This may be because a fault occurred during the fault-tracing. Check that the hoses, connectors and components etc. have been correctly reinstalled. Check that they are not damaged.
- This diagnostic trouble code (DTC) cannot be verified before other DTCs have been remedied and erased
- Fault-trace, remedy and erase other diagnostic trouble codes (DTCs) first. Then select this diagnostic trouble code (DTC) to perform verification.
- Continue Refer to «Information»(ref-441352-S16017590262011121500000)
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 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
See Signal too low. Intermittent fault
HINT: After carrying out the repair, check that the fault has been remedied.
Note. This test cannot be performed if there are diagnostic trouble codes (DTCs) stored in EMS2000.
- Reinstall the components, reconnect the connectors etc.
- Ignition on
- Check that no other diagnostic trouble codes (DTCs) are stored. If other diagnostic trouble codes (DTCs) are stored, these must be remedied and erased first.
Are any other diagnostic trouble codes (DTCs) stored?
- YES Refer to «Fault-tracing information»(ref-441352-S15895636902011121500000)
- NO Refer to «Activating the leak diagnostic»(ref-441352-S02644024142011121500000)
- The control module has detected a fault other than the one that affects the relevant diagnostic trouble code (DTC). This may be because a fault occurred during the fault-tracing. Check that the hoses, connectors and components etc. have been correctly reinstalled. Check that they are not damaged.
- This diagnostic trouble code (DTC) cannot be verified before other DTCs have been remedied and erased
- Fault-trace, remedy and erase other diagnostic trouble codes (DTCs) first. Then select this diagnostic trouble code (DTC) to perform verification.
- Continue Refer to «Information»(ref-441352-S15685667192011121500000)
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 low. Permanent fault
Check
Check the signal cables between engine control module (ECM) terminals 57 and 27 and transmission control module (TCM) terminals 14 and 27 for a short-circuit to ground and remedy according to Short-circuit to ground, intermittent faults and for a short-circuit to supply voltage according to Short-circuit to supply voltage, intermittent faults , short-circuit to each other and for an open-circuit according to Open-circuit, intermittent faults .
Check the engine control module (ECM) and transmission control module (TCM) connectors for contact resistance and oxidation according to Contact resistance and oxidation .
Check in particular for damage, or loose terminal pins.
Other information
- For information about signals, see «Signal specification»(ref-441338-S16642011902011121500000)
- To connect the breakout box, see «Connecting the breakout box. EMS 2000»(ref-441291-S13587040122011121500000) .
- Continue Refer to «Information»(ref-441352-S37689351982011121500000)
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
See Faulty signal. Intermittent fault
Check the engine control module (ECM) and transmission control module (TCM) connectors. Check for contact resistance and oxidation according to Contact resistance and oxidation .
Check for loose or damaged terminal pins.
Reconnect the connectors.
Start the engine.
Read off the status of the diagnostic trouble code (DTC).
Is the status intermittent?
- YES Refer to «Verification»(ref-441352-S41157835462011121500000)
- NO Refer to «Checking wiring»(ref-441352-S20556146832011121500000)
- Start the engine. Read off the status of the diagnostic trouble code (DTC).
Is the status intermittent?
- YES OKAY: Troubleshooting has been completed.
- NO Refer to «Information»(ref-441352-S30822977472011121500000)
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 Faulty signal. Permanent fault
See Faulty signal. Intermittent fault
See Faulty signal. Intermittent fault
See Faulty signal. Intermittent fault
See Faulty signal. Permanent fault
See Faulty signal. Permanent fault
See Faulty signal. Permanent fault
See Faulty signal. Intermittent fault
See Faulty signal. Intermittent fault
See Faulty signal. Intermittent fault
See Faulty signal. Permanent fault
See Faulty signal. Permanent fault
See Faulty signal. Permanent fault
See Faulty signal. Intermittent fault
See Faulty signal. Intermittent fault
See Faulty signal. Intermittent fault
See Faulty signal. Permanent fault
See Faulty signal. Permanent fault
See Faulty signal. Permanent fault