Pinpoint Test Bi: DTC U0424:82

BI1 VERIFY THE CUSTOMER CONCERN
- Ignition ON.
- Verify that there is an observable symptom present.
Is an observable symptom present?
- Yes : GO to BI2 .
- No : The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.
BI2 CHECK THE COMMUNICATION NETWORK
- Using a scan tool, perform a network test.
Does the HVAC module pass the network test?
- Yes : GO to BI3 .
- No : REFER to MODULE COMMUNICATIONS NETWORK , The HVAC Module Does Not Respond To The Scan Tool.
BI3 RETRIEVE THE RECORDED DTCs FROM THE IPC SELF-TEST
- Using a scan tool, perform the IPC self-test.
Is DTC U3003:16 or DTC U3003:17 recorded?
- Yes : For DTC U3003:16, GO to PINPOINT TEST BJ .
  For DTC U3003:17, GO to PINPOINT TEST BK .
- No : GO to BI4 .
BI4 RETRIEVE THE RECORDED DTCs FROM THE HVAC MODULE SELF-TEST
- Using a scan tool, perform the HVAC module self-test.
Are any DTCs recorded?
- Yes : REFER to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION AND DIAGNOSTICS .
- No : GO to BI5 .
BI5 RETRIEVE THE RECORDED DTCs FROM THE BCM SELF-TEST
- Using a scan tool, perform the BCM self-test.
Are any DTCs recorded?
- Yes : REFER to the BCM DTC Chart in MULTIFUNCTION ELECTRONIC MODULES .
- No : GO to BI6 .
BI6 RECHECK THE IPC DTCs
NOTE: If new modules were installed prior to the DTC being set, the module configuration may be incorrectly set during the Programmable Module Installation (PMI) or the PMI may not have been carried out.
- Using a scan tool, clear the DTCs.
- Repeat the IPC self-test.
Is DTC U0424:82 still present?
- Yes : INSTALL a new HVAC module. REFER to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION AND DIAGNOSTICS . CLEAR the DTCs. REPEAT the IPC self-test.
  If DTC U0424:82 is still present, INSTALL a new BCM. REFER to MULTIFUNCTION ELECTRONIC MODULES .
- No : The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.