Various Heating And Cooling Concerns With HVAC Control Module (PIC5965C)

Publication date: 2015-05-28
Reference number: PIC5965C
Supersedes refnos: PIC5965B

VARIOUS HEATING AND COOLING CONCERNS WITH HVAC CONTROL MODULE

TECHNICAL SERVICE BULLETIN

Reference Number(s): PIC5965C, Date of Issue: May 28, 2015

Affected Model(s):	2014 - 2015 Chevrolet Camaro Built Before February 10, 2015
Supercedes:	This PI was superseded to update recommended field. Please discard PIC5965B.

SERVICE INFORMATION

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

CONDITION/CONCERN

A customer may comment that any of the following conditions may be present at start-up:

Blower motor and/or indicators are inoperative
Blower motor may be blowing but speed cannot be adjusted
AC not blowing cold enough air

Upon further inspection, DTC U1510 MAY be set in the ECC (Electronic Climate Control) module. This module is commonly referred to as the HVAC module.

RECOMMENDATION/INSTRUCTIONS

If any of the concerns listed above are encountered, technicians are to reprogram the ECC module. An updated ECC module software calibration has been released to address these various concerns. If the concern is still present after the ECC has been updated, refer to SI and continue with standard diagnostics.

Refer to the HVAC System Control Module Programming and Setup procedures in SI.

IMPORTANT:

The calibration for these concerns will NOT address or repair a base HVAC system concern on these vehicles. For example, if the system is low on refrigerant, the engine cooling fans are not working correctly, or if the vehicle has a base wiring concern, this PI will NOT repair these types of concerns.

WARRANTY INFORMATION

For vehicles repaired under warranty use:

Labor Operation	Description	Labor Time
2810015	HVAC System Control Module Reprogramming with SPS	Use Published Labor Time

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.