Page 780 of 5267
P1273-A/C CLUTCH CONTROL CIRCUIT 2 HIGH
For a complete wiring diagramRefer to Section 8W.
Page 784 of 5267
P1274-A/C CLUTCH CONTROL CIRCUIT 2 OPEN
For a complete wiring diagramRefer to Section 8W.
Page 788 of 5267
P1275-A/C CLUTCH CONTROL CIRCUIT 2 OVERCURRENT
For a complete wiring diagramRefer to Section 8W.
Page 789 of 5267

When Monitored:
With the ignition on. Battery voltage greater than 10.4 volts. TIPM requesting A/C Clutch operation.
Set Condition:
An overcurrent condition is detected in the A/C Clutch control output circuit. One Trip Fault. Three good trips
to turn off the MIL.
Possible Causes
TERMINAL DAMAGE OR CORROSION
A/C CLUTCH GROUND HIGH RESISTANCE
(C3) A/C CLUTCH CONTROL OUTPUT CIRCUIT HIGH RESISTANCE
A/C COMPRESSOR CLUTCH
TIPM
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING).
Diagnostic Test
1.A/C CLUTCH OPERATION
Ignition on, engine not running.
With a scan tool in the TIPM Actuators, actuate the A/C Clutch.
Is the A/C Clutch actuating?
Ye s>>
Refer to the INTERMITTENT CONDITION Diagnostic Procedure.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
No>>
Go To 2
2.VISUAL AND PHYSICAL CONNECTOR AND TERMINAL INSPECTION
Turn the ignition off.
Disconnect the TIPM C9 harness connector.
Disconnect the A/C Clutch harness connector.
Inspect the terminal and connector condition. Check for signs of corrosion build up or damage the would compro-
mise the terminal to controller pin connector.
NOTE: Make sure that all in-line connectors are inspected for corrosion and/or damage.
Visually inspect the wiring harness. Look for any chafed, pierced, pinched or partially broken wires hidden in the
wire insulation.
Were any of the above conditions found?
Ye s>>
Repair or replace as necessary.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
No>>
Go To 3
Page 791 of 5267
P127C-FUEL PUMP CONTROL CIRCUIT 2 LOW
For a complete wiring diagramRefer to Section 8W.
Page 794 of 5267
P127D-FUEL PUMP CONTROL CIRCUIT 2 HIGH
For a complete wiring diagramRefer to Section 8W.
Page 798 of 5267
P127E-FUEL PUMP CONTROL CIRCUIT 2 OPEN (TIPM)
For a complete wiring diagramRefer to Section 8W.
Page 802 of 5267
P0127F-FUEL PUMP CONTROL CIRCUIT 2 OVERCURRENT (TIPM)
For a complete wiring diagramRefer to Section 8W.