Pinpoint Test B : P0562:00 - ACCM (Air Conditioning Control Module)

B1 CHECK THE ACCM (AIR CONDITIONING CONTROL MODULE) LOW VOLTAGE SUPPLY CIRCUIT

NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector.

Ignition OFF.
Disconnect ACCM C2251-- .
Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2251-1	Courtesy of FORD MOTOR COMPANY	Ground

Is the voltage greater than 11 volts?

Yes

GO to B2

No	VERIFY the BJB fuse 29 (10A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams to identify the possible causes of the circuit short.

B2 CHECK THE ACCM (AIR CONDITIONING CONTROL MODULE) GROUND CIRCUIT

Ignition OFF.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2251-4	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance less than 3 ohms?

Yes

GO to B3

No	REPAIR the circuit.

B3 CHECK FOR CORRECT ACCM (AIR CONDITIONING CONTROL MODULE) OPERATION

NOTE: Before testing of the A/C electric compressor ACCM with a diagnostic scan tool can be performed on HEV, the vehicle must be in Ready to Drive mode. Switch the ignition on with transmission selector lever in position P. Look for the green ready indicator light to appear in the lower right portion of the instrument cluster and a ready to drive message to appear in the middle of the left cluster screen.

Ignition OFF.
Disconnect and inspect the ACCM low voltage connector.
Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary
Reconnect the ACCM connector. Make sure it seats and latches correctly.
Place vehicle in Ready to Drive mode.
Using a diagnostic scan tool, clear all Diagnostic Trouble Codes (DTCs).
Ignition OFF.
Wait 10 seconds.
Place vehicle in Ready to Drive mode.
Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new A/C electric compressor.
REFER to: Air Conditioning (A/C) Electric Compressor (Climate Control System - General Information, Removal and Installation).

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.