Pinpoint Test R : U3006:16, U3006:17
- R1 CARRY OUT THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE SELF-TEST
- Start the engine.
- Using a diagnostic scan tool, carry out the HVAC control module self-test.
- Using a diagnostic scan tool, clear the HVAC control module Diagnostic Trouble Codes (DTCs).
- Ignition OFF.
- Wait 10 seconds.
- Start the engine.
- Using a diagnostic scan tool, carry out the HVAC control module self-test.
Is DTC U3006:16 or U3006:17 still present?
Yes GO to R2 No The system is operating normally at this time. The DTC may have been set previously during battery charging or while jump starting the vehicle. - R2 CHECK FOR CHARGING SYSTEM DIAGNOSTIC TROUBLE CODES (DTCS) IN THE PCM (POWERTRAIN CONTROL MODULE)
- Ignition OFF.
- Ignition ON.
- Using a diagnostic scan tool, carry out the PCM KOEO self-test.
Are any charging system Diagnostic Trouble Codes (DTCs) present in the PCM?
Yes DIAGNOSE the charging system. Refer to: Charging System - 2.5L Duratec (125kW/170PS) . No GO to R3 - R3 CHECK THE BATTERY CONDITION AND STATE OF CHARGE
- Carry out the battery condition test. Refer to: Battery .
Did the battery pass the condition test?
Yes GO to R4 No INSTALL a new battery. Refer to: Battery - 2.5L Duratec (125kW/170PS) . - R4 CHECK THE CHARGING SYSTEM VOLTAGENOTE: Do not allow the engine to exceed 2, 000 Revolutions Per Minute (RPM) while carrying out this step or the generator may self-excite, resulting in default charging system output voltage. If engine exceeds 2, 000 Revolutions Per Minute (RPM), shut the vehicle off and restart the engine before carrying out this step.
- Start the engine.
- Measure:
Positive Lead Measurement / Action Negative Lead Battery Positive Terminal Battery Negative Terminal
- For DTC
U3006:16 , turn the headlights on, set the HVAC fan on high and run engine at 1, 500 Revolutions Per Minute (RPM) for a minimum of 2 minutes.
- For DTC
U3006:17 , turn off all accessories and run the engine at 1, 500 Revolutions Per Minute (RPM) for a minimum of 2 minutes.
Is the battery voltage between 13-15.2 volts?
Yes For DTC
U3006:16 , GO to R5 . For DTC
U3006:17 , GO to R7 .No DIAGNOSE the charging system. Refer to: Charging System - 2.5L Duratec (125kW/170PS) . - R5 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE VOLTAGE SUPPLY CIRCUIT FOR HIGH RESISTANCE
- Ignition OFF.
- Disconnect HVAC control module C228B .
- Ignition ON.
- Measure:
Positive Lead Measurement / Action Negative Lead C228B-14 Ground
Is the voltage greater than 11 volts?
Yes GO to R6 No REPAIR the circuit. - R6 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE GROUND CIRCUIT FOR HIGH RESISTANCE
- Ignition OFF.
- Measure:
Positive Lead Measurement / Action Negative Lead C228B-6 Ground
Is the resistance less than 3 ohms?
Yes GO to R7 No REPAIR the circuit. - R7 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) CONTROL MODULE OPERATION
- Ignition OFF.
- Disconnect and inspect all HVAC control module electrical connectors (if not previously disconnected).
- Repair:
- corrosion (install new connector or terminal - clean module pins)
- damaged or bent pins - install new terminals or pins
- pushed-out pins - install new pins as necessary
- Connect all HVAC control module electrical connectors. Make sure they seat and latch correctly.
- Operate the system and determine if the concern is still present.
Is the concern still present?
Yes CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new HVAC control module. Refer to: Climate Control Assembly . No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.