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GMC Yukon XL 2000–2006

GMC Yukon XLModel years 2000–2006

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1 conditions added

Common on this vehicle:Warning lightGauge or instrument faultMisfire or rough idle

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4 records state a cause or a remedy. Each record is shown as short labels in the order fault → finding the cause → correction. Press a label to narrow to the records that state it.

Symptom

Component named as the cause

A ribbon is as wide as the records that state both of its ends (only the commonest are drawn). A record that names several symptoms or components runs through each. Orange is records that say the fault came back or was not fixed. Results come from owners’ reports only; one that does not say is “result not stated”. None of this is a likelihood of a cause or a rate at which work succeeds.

Read the records one by one (4)

Known issuesIntermittent battery lamp with history DTC B1489 after BGCM replacement (module not SPS programmed)1

  1. Manufacturer communication2005–2006 GMC YUKON XL ・ 2007-07-01

    Intermittent battery lamp with history DTC B1489 after BGCM replacement: SPS program the module

    1. 1Fault

      • A vehicle may have an intermittent battery lamp with a history code B1489 in the Battery Generator Control Module (BGCM).
      • The concern may be noticed after the BGCM has been replaced for another issue.

    2. 2Finding the cause

      Possible causes

      • If the calibration was not completed properly or the vehicle left the dealership with the module not programmed, DTC B1489 may set, followed by an intermittent battery lamp.

    3. 3Correction

      Repair

      • Whenever the BGCM is replaced, the module needs to be SPS programmed before the vehicle is released to the customer.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：The information applies to 2005-06 Escalade, Avalanche, Suburban, Tahoe, Denali, Sierra, Yukon XL and 2005-07 Silverado and Sierra Classic with Regulated Voltage Control (RVC) module.
    • Condition：A vehicle may have an intermittent battery lamp with a history code B1489 in the Battery Generator Control Module (BGCM).
    • Condition：The concern may be noticed after the BGCM has been replaced for another issue.
    • Repair：Whenever the BGCM is replaced, the module needs to be SPS programmed before the vehicle is released to the customer.
    • Cause：If the calibration was not completed properly or the vehicle left the dealership with the module not programmed, DTC B1489 may set, followed by an intermittent battery lamp.

    Open this issue of GM TechLink ↗ The points above are read from an article of TechLink, GM’s monthly publication for dealership technicians. The article itself is not reproduced here.

    Remedy
    Battery Lamp and DTC B1489 This information applies to 2005-06 Escalade, Avalanche, Suburban, Tahoe, Denali, Sierra, Denali, Yukon XL and 2005-07 Silverado and Sierra Classic with Regulated Voltage Control (RVC) module. A vehicle may have an intermittent battery lamp with a history code B1489 in the Battery Generator Control Module (BGCM). This concern may be noticed after the BGCM has been replaced for another issue. Whenever the BGCM is replaced, the module needs to be SPS programmed before the vehicle is released to the customer. If the calibration was not completed properly or the vehicle left the dealership with the module not programmed, a DTC B1489 code may be set, followed by a intermittent battery lamp.

ELECTRICAL SYSTEM2

  1. Owner complaint2003 GMC YUKON XL ・ 2008-09-25

    Yukon shuts down while driving, rough running, battery light, speedometer failure

    1. 1Fault

    2. 2Finding the cause

    3. 3Correction

      Not stated

    Read the sentences of the record
    Fault
    WHILE DRIVING AT 65 MPH (= 104.6 km/h), THE YUKON JUST SHUT DOWN AND THE BATTERY LIGHT CAME ON. (3 more)
    Cause
    WONDER IF IT COULD BE AN ELECTRONICS/ELECTRICAL PROBLEM. *TR
    Inspection
    TOOK TO AN INDEPENDENT MECHANIC WHO COULD FIND NOTHING WRONG. (1 more)

  2. Manufacturer communication2005 GMC YUKON XL ・ 2005-05-16

    Battery Light Reset Information After PCM Replacement

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      INFORMATION ON RESETTING THE BATTERY LIGHT IF IT REMAINS ILLUMINATED AFTER (POWERTRAIN CONTROL MODULE) PCM REPLACEMENT. *TT

    Read the sentences of the record
    Remedy
    INFORMATION ON RESETTING THE BATTERY LIGHT IF IT REMAINS ILLUMINATED AFTER (POWERTRAIN CONTROL MODULE) PCM REPLACEMENT. *TT

No component category1

  1. Manufacturer communication2005 GMC FULL SIZE PICK AND UTILITIES (YUKON XL) ・ 2004-09-01

    Regulated Voltage Control (RVC) charging system: operation and diagnosis

    1. 1Fault

      • The purpose of the RVC system is to keep the battery state-of-charge at 80% or above and support vehicle loads.
      • On full-size trucks the generator battery control module, rather than the PCM/ECM, controls the generator through the generator L-terminal control circuit.
      • The Generator Battery Control Module communicates with the PCM, IPC and BCM for RVC operation; it is a serviceable component connected to the negative battery cable at the battery, and it directly controls the generator field control circuit input to the generator.
      • Start Up Mode: after the engine has started, the control module sets a targeted generator output voltage of 14.5 volts for 30 seconds.
      • Battery Sulfation Mode: entered when the battery voltage is less than 13.2 volts for 45 minutes; the generator battery control module then sets a targeted output voltage between 13.9 and 15.5 volts for 5 minutes.

    2. 2Finding the cause

      Steps to confirm (in the document’s order)

      1. If a charging system error is suspected, first check for related charging system and low voltage DTCs set in the control module.
      2. Diagnose P codes first, as these DTCs set if there is a generator or control circuit failure.
      3. If no DTCs are present, refer to the Charging System test in the service manual.
      4. For L-terminal diagnostics, set the DVOM to monitor frequency; in normal operation the duty cycle reads 5-95%, depending on the mode the system is in and the battery SOC.

    3. 3Correction

      Regulated Voltage Control 2005 Full Size Pick and Utilities under 8600 GVW Generation IV Charge Mode, Fuel Economy Mode, Voltage Reduction Mode, Start Up Mode, Battery Sulfation Mode Generator Battery Control Module, ECM/PCM The purpose of the RVC system is to maintain the battery state-of-charge at 80% or above and support vehicle loads. The PCM/ECM (generator battery control module on full-size trucks) controls the generator through the generator L-terminal control circuit. Generator Battery Control Module -- It communicates with the PCM, IPC and BCM for RVC operation. It is a serviceable component that is connected to the negative battery cable at the battery. It directly controls the generator field control circuit input to the generator. Start Up Mode -- After the engine has started, the control module sets a targeted generator output voltage of 14.5 volts for 30 seconds. Battery Sulfation Mode -- The control module enters this mode when the battery voltage is less than 13.2 volts for 45 minutes. Once in this mode, the generator battery control module will set a targeted output voltage between 13.9 to 15.5 volts for 5 minutes. If you feel there is a charging system error, first check for related charging system and low voltage DTCs set in the control module. TIP: Diagnose P codes first, as these DTC will set if there is a generator or control circuit failure. If no DTCs are present, refer to the Charging System test in the service manual. For L-terminal diagnostics, set your DVOM to monitor frequency. When the system is operating normally, you should read a duty cycle of 5-95% depending on which mode the system is in and also the battery SOC.

    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：The table of vehicles lists 2005 Full Size Pick and Utilities under 8600 GVW as Generation IV, with Charge, Fuel Economy, Voltage Reduction, Start Up and Battery Sulfation modes; the key components are the Generator Battery Control Module and the ECM/PCM.
    • Condition：The purpose of the RVC system is to keep the battery state-of-charge at 80% or above and support vehicle loads.
    • Condition：On full-size trucks the generator battery control module, rather than the PCM/ECM, controls the generator through the generator L-terminal control circuit.
    • Condition：The Generator Battery Control Module communicates with the PCM, IPC and BCM for RVC operation; it is a serviceable component connected to the negative battery cable at the battery, and it directly controls the generator field control circuit input to the generator.
    • Condition：Start Up Mode: after the engine has started, the control module sets a targeted generator output voltage of 14.5 volts for 30 seconds.
    • Condition：Battery Sulfation Mode: entered when the battery voltage is less than 13.2 volts for 45 minutes; the generator battery control module then sets a targeted output voltage between 13.9 and 15.5 volts for 5 minutes.
    • Confirm：If a charging system error is suspected, first check for related charging system and low voltage DTCs set in the control module.
    • Confirm：Diagnose P codes first, as these DTCs set if there is a generator or control circuit failure.
    • Confirm：If no DTCs are present, refer to the Charging System test in the service manual.
    • Confirm：For L-terminal diagnostics, set the DVOM to monitor frequency; in normal operation the duty cycle reads 5-95%, depending on the mode the system is in and the battery SOC.

    Open this issue of GM TechLink ↗ The points above are read from an article of TechLink, GM’s monthly publication for dealership technicians. The article itself is not reproduced here.

    Remedy
    Regulated Voltage Control 2005 Full Size Pick and Utilities under 8600 GVW Generation IV Charge Mode, Fuel Economy Mode, Voltage Reduction Mode, Start Up Mode, Battery Sulfation Mode Generator Battery Control Module, ECM/PCM The purpose of the RVC system is to maintain the battery state-of-charge at 80% or above and support vehicle loads. The PCM/ECM (generator battery control module on full-size trucks) controls the generator through the generator L-terminal control circuit. Generator Battery Control Module -- It communicates with the PCM, IPC and BCM for RVC operation. It is a serviceable component that is connected to the negative battery cable at the battery. It directly controls the generator field control circuit input to the generator. Start Up Mode -- After the engine has started, the control module sets a targeted generator output voltage of 14.5 volts for 30 seconds. Battery Sulfation Mode -- The control module enters this mode when the battery voltage is less than 13.2 volts for 45 minutes. Once in this mode, the generator battery control module will set a targeted output voltage between 13.9 to 15.5 volts for 5 minutes. If you feel there is a charging system error, first check for related charging system and low voltage DTCs set in the control module. TIP: Diagnose P codes first, as these DTC will set if there is a generator or control circuit failure. If no DTCs are present, refer to the Charging System test in the service manual. For L-terminal diagnostics, set your DVOM to monitor frequency. When the system is operating normally, you should read a duty cycle of 5-95% depending on which mode the system is in and also the battery SOC.