Section 06: ELECTRICAL
PA1562
29
Problem/Symptom Probable Causes Actions
Rear flashers not
functioning
Stoplights and center
stoplights not functioning
Module A51 is not powered
or is faulty
1. Check the SYSTEM DIAGNOSTIC
menu of the message center display
(MCD). Select FAULT DIAGNOSTIC
and ELECTRICAL SYSTEM. The
message “No Response ModA51,
Active” indicates a power problem on
the module. (A CAN network problem
would show the same message but
doesn't produce this symptom).
2. Check / reset circuit breaker CB2
3. Check / replace fuse F80
4. Probe gray connector on module to
see if it is powered.
Engine is overheating and
radiator fan clutch does
not engage
The A/C compressor
clutch does not engage
Module A52 is not powered
or is faulty
1. Check the SYSTEM DIAGNOSTIC
menu of the message center display
(MCD). Select FAULT DIAGNOSTIC
and ELECTRICAL SYSTEM. The
message “No Response ModA52,
Active” indicates a power problem on
the module. (A CAN network problem
would show the same message but
doesn't produce this symptom).
2. Check / reset circuit breaker CB5
3. Check / replace fuse F65
4. Probe gray connector on module to
see if it is powered.
Evaporator fan not
functioning
Circuit breaker CB3 tripped
Module A54 is not powered
or is faulty
1. Check / reset circuit breaker CB3
2. Check the SYSTEM DIAGNOSTIC
menu of the message center display
(MCD). Select FAULT DIAGNOSTIC
and ELECTRICAL SYSTEM. The
message “No Response ModA54,
Active” indicates a power problem on
the module. (A CAN network problem
would show the same message but
doesn't produce this symptom).
3. Check / reset circuit breaker CB5
4. Check / replace fuse F67 , F68
5. Probe gray connector on module to
see if it is powered.
HVAC condenser fans not
functioning in speed 1
Module A54 is not powered
or is faulty
1. Check the SYSTEM DIAGNOSTIC
menu of the message center display
(MCD). Select FAULT DIAGNOSTIC
and ELECTRICAL SYSTEM. The
message “No Response ModA54,
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