My 2002 Jeep Grand Cherokee Laredo with manual climate control AC light goes off and AC stops working whenever it wants. I can force the AC to work by holding the AC button in real tight.The AC light will always stay on and the AC will always work if it is in the defrost position. Any thoughts?

SOURCE: 2002 jeep cherokee laredo

the only problem that vehicle has is with cooling fans is relay/module or electrical harness to module that burns up located behind and under right front headlamp assy must remove headlamp to access relay/module that is what powers up fan motor module assy.

SOURCE: 2002 wj jeep grand cherokee p1756

The governor pressure sensor is the most likley cause however an inspection of fluid or debris in trans pan would be a good idea to make sure there's nothing excessive in it. Attached is a list of possible causes however the senor would be the most common.

POSSIBLE CAUSES

• Powertrain control module
• 5 volt supply circuit open
• Check transmission fluid level and condition
• GOV press sensor signal circuit shorted to voltage
• GOV press sensor signal circuit shorted to sensor ground
• GOV press sensor signal circuit shorted to ground
• GOV pressure sensor signal circuit open
• Sensor ground circuit open
• GOV press sensor signal circuit shorted to voltage inside transmission
• 5 volt supply circuit open inside transmission
• Intermittent governor pressure solenoid
• Internal transmission problem
• Oil burnt or oil pan has excessive debris
• Other transmission DTC'S
• GOV press sensor signal circuit shorted to sensor ground inside transmission
• Valve body
• GOV press sensor signal circuit shorted to ground inside transmission
• GOV press sensor signal circuit open inside transmission
• GOV press sensor ground circuit open inside transmission
• Governor pressure sensor (high)

SOURCE: 2002 jeep power windows and door locks stopped

SOUNDS LIKE YOU HAVE BROKEN WIRES BETWEEN DRIVER'S DOOR AND BODY AT A PILLAR..PULL RUBBER BOOT FROM BODY AND DOOR AND INSPECT WIRING HERE

SOURCE: 2000 jeep grand cherokee laredo air conditioning

make sure nobs are not broke pull them off check for cracks if not the your blend door might be sticking

ZJ Limited

• 17989 Answers
• Posted on Aug 04, 2009

SOURCE: cruise control not working

Review this information about Jeep-WJ-Cherokee-Service-Manual-PDF-08W-Diagrama-de-Cableado (Wiring Diagrams / Section 8W Page 181 (8W 33-1)

Is in spanish, but the graphics can help you.

Good luck!!!