2000 chevrolet blazer sunroof will not work, it appears to not have power.
Power is supplied to the Power windows and sunroof through the power window circuit breaker. That circuit breaker is supplied power through the RAP (retained accessory power) Relay, the RAP relay also supplies power to the radio. The RAP relay is also fuse protected by the RAP fuse in the under hood fuse block. The RAP relay is energized by the BCM body control module.
The RAP relay is responsible for the radio and windows working after the igntion is turned off.
The first place to check would be the RAP fuse in the under hood fuse block and then the RAP relay in the Body fuse block.
A list of the BODY relay block located on the left side of the dash to the right of the interior fuse block is below:
(1)
Park Lamp Relay
(2)
Courtesy Lamp Relay
(3)
Retained Accessory Power (RAP) Relay
(4)
Power Seats Circuit Breaker
(5)
Power Windows Circuit Breaker
(6)
Inadvertent Power Relay
(7)
Door Lock Relay
(8)
Headlamp Ground Relay
(9)
Driver Door Unlock Relay
(10)
Door Unlock Relay(1) Park Lamp Relay
(2) Courtesy Lamp Relay
(3) Retained Accessory Power (RAP) Relay
(4) Power Seats Circuit Breaker
(5) Power Windows Circuit Breaker
(6) Inadvertent Power Relay
(7) Door Lock Relay
(8) Headlamp Ground Relay
(9) Driver Door Unlock Relay
(10) Door Unlock Relay
(1)
Park Lamp Relay
(2)
Courtesy Lamp Relay
(3)
Retained Accessory Power (RAP) Relay
(4)
Power Seats Circuit Breaker
(5)
Power Windows Circuit Breaker
(6)
Inadvertent Power Relay
(7)
Door Lock Relay
(8)
Headlamp Ground Relay
(9)
Driver Door Unlock Relay
(10)
Door Unlock Relay
(1)
Park Lamp Relay
(2)
Courtesy Lamp Relay
(3)
Retained Accessory Power (RAP) Relay
(4)
Power Seats Circuit Breaker
(5)
Power Windows Circuit Breaker
(6)
Inadvertent Power Relay
(7)
Door Lock Relay
(8)
Headlamp Ground Relay
(9)
Driver Door Unlock Relay
(10)
Door Unlock Relay
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