Escape 4WD L4-2.5L Hybrid (2009)
Control Module HVAC: All Technical Service Bulletins
A/C - Poor Cooling Performance
TSB 11-3-9
03/15/11
HYBRID - LACK OF A/C COOLING
FORD:
2009 Escape
MERCURY:
2009 Mariner
ISSUE
Some 2009 Escape and Mariner Hybrid vehicles equipped with electronic automatic temperature control (EATC) may exhibit a lack of A/C cooling.
Low battery voltage during a previous vehicle start may cause the heating ventilation air conditioning (HVAC) module to function in conventional
gasoline mode instead of hybrid vehicle mode.
ACTION
Follow Service Procedure to correct the condition.
SERVICE PROCEDURE
1. To determine if the HVAC control module has defaulted to gasoline mode, first turn off the A/C and Recirculated Air buttons on the HVAC control
head.
2. Turn off the HVAC control head.
3. Press the ECON button, the yellow led will light up.
4. Does the A/C and recirculated air buttons also light up when the ECON button is pressed?
a. Yes - HVAC module is in gasoline mode, proceed to Step 5.
b. No - HVAC module is not in gas mode, this procedure does not apply.
5. Reprogram the HVAC module to the latest calibration using IDS release 71.00 and higher. This new calibration is not included in the VCM 2010.11
DVD. Calibration files may also be obtained at the website.
WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
IMPORTANT: Warranty coverage limits/policies are not altered by a TSB. Warranty coverage limits are determined by the identified causal part.
OPERATION
DESCRIPTION
TIME
110309A
2009 Escape and Mariner
0.3 Hr.
Hybrid: Reprogram The
HAVC Module (Do Not
Use With Any Other Labor
Operations)
DEALER CODING
CONDITION
BASIC PART NO.
CODE
19980
04
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