Pinpoint Tests
Sunshade - Roof
Pinpoint Tests
Pinpoint Test A: The Power Sunshade is Inoperative
The sunshade motor must be initialized whenever the sunshade motor has been removed from the vehicle. Refer to Motor Initialization Programming and Relearning.
Refer to Wiring Diagram Set 104, Power Sunshade for schematic and connector information. Diagrams By Number
Normal Operation
The sunshade motor receives voltage from the accessory delay relay through circuit CBP41 (BU) when the vehicle is in the ACC or RUN position. The sunshade motor receives voltage at all times through circuit SBB29 (GY/RD). Ground is supplied to the sunshade motor and sunshade switch through circuit GD133 (BK). When the sunshade switch is pressed, a ground signal is provided to the sunshade motor through circuit CPR37 (YE/GY) to open the sunshade. When the sunshade switch is pulled, a ground signal is provided to the sunshade motor through circuit CPR32 (YE/GN) to close the sunshade. For information about the sunshade operation, refer to the Owner's Literature.
This pinpoint test is intended to diagnose the following:
- Fuse(s)
- Accessory delay relay
- Sunshade motor not initialized
- Wiring, terminals or connectors
- Sunshade switch
- Sunshade motor
PINPOINT TEST A: THE POWER SUNSHADE IS INOPERATIVE
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A1 CHECK THE POWER WINDOWS
- Ignition ON.
- Attempt to operate the power windows.
- Do the power windows operate?
Yes
GO to A2.
No
REFER to Glass, Frames and Mechanisms Testing and Inspection to diagnose the inoperative power windows (accessory delay relay circuit).
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A2 CHECK THE SUNSHADE MOTOR FOR INITIALIZATION
- Attempt to carry out the sunshade motor initialization procedure. Refer to Motor Initialization Programming and Relearning.
- Is the concern still present, or does the sunshade motor fail to initialize?
Yes
GO to A3.
No
The system is operating normally at this time. The sunshade motor was not initialized.
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A3 CHECK THE SUNSHADE SWITCH
- Ignition OFF.
- Disconnect: Sunshade Switch C9041.
- Carry out the sunshade switch component test.
Refer to sunshade for component testing.
- Did the sunshade switch pass the component test?
Yes
GO to A4.
No
INSTALL a new sunshade switch. REFER to Roof Opening Panel Control Switch in Roof Opening Panel Service and Repair. TEST the system for normal operation.
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A4 CHECK VOLTAGE TO THE SUNSHADE MOTOR
- Disconnect: Sunshade Motor C9040.
- Ignition ON.
- Measure the voltage between sunshade motor C9040-13, circuit CBP41 (BU), harness side and ground; and between C9040-1, circuit SBB29 (GY/RD), harness side and ground.
- Are the voltages greater than 10 volts?
Yes
GO to A5.
No
VERIFY Smart Junction Box (SJB) fuse 41 (15A) and Battery Junction Box (BJB) fuse 29 (30A) are OK. If OK, REPAIR the circuit. TEST the system for normal operation.
If not OK, REFER to the Wiring Diagrams to identify the possible causes of the circuit short. REPAIR the circuit. TEST the system for normal operation. Diagrams By Number
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A5 CHECK THE SUNSHADE MOTOR GROUND
- Ignition OFF.
- Measure the resistance between sunshade motor C9040-8, circuit GD133 (BK), harness side and ground.
- Is the resistance less than 5 ohms?
Yes
GO to A6.
No
REPAIR the circuit. TEST the system for normal operation.
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A6 CHECK THE SUNSHADE SWITCH GROUND
- Connect: Sunshade Motor C9040.
- Measure the resistance between sunshade switch C9041-12, circuit GD133 (BK), harness side and ground.
- Is the resistance less than 5 ohms?
Yes
GO to A8.
No
GO to A7.
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A7 CHECK FOR AN OPEN IN CIRCUIT GD133 (BK)
- Disconnect: Sunshade Motor C9040.
- Measure the resistance between sunshade switch C9041-12, circuit GD133 (BK), harness side and sunshade motor C9040-7, circuit GD133 (BK), harness side.
- Is the resistance less than 5 ohms?
Yes
GO to A10.
No
REPAIR the circuit. TEST the system for normal operation.
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A8 CHECK CIRCUITS CPR32 (YE/GN) AND CPR37 (YE/GY) FOR A SHORT TO GROUND
- Disconnect: Sunshade Motor C9040.
- Measure the resistance between sunshade switch C9041-4, circuit CPR37 (YE/GY), harness side and ground; and between sunshade switch C9041-9, circuit CPR32 (YE/GN), harness side and ground.
- Are the resistances greater than 10,000 ohms?
Yes
GO to A9.
No
REPAIR the circuit(s) in question. TEST the system for normal operation.
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A9 CHECK CIRCUITS CPR32 (YE/GN) AND CPR37 (YE/GY) FOR AN OPEN
- Measure the resistance between sunshade switch C9041, harness side and sunshade motor C9040, harness side using the following table:
- Are the resistances less than 5 ohms?
Yes
GO to A10.
No
REPAIR the circuit(s) in question. TEST the system for normal operation.
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A10 CHECK THE SUNSHADE MOTOR JUMPER HARNESS
- Using the following table, check the sunshade motor jumper harness for loose pins, an open or a short between sunshade motor C9040, component side and the sunshade motor jumper harness socket:
- Is the sunshade motor jumper harness OK?
Yes
GO to A11.
No
REPAIR the sunshade motor jumper harness. INITIALIZE the sunshade motor. REFER to Motor Initialization Programming and Relearning. TEST the system for normal operation.
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A11 CHECK THE SUNSHADE MOTOR FOR CORRECT OPERATION
- Disconnect all sunshade motor connector.
- Check for:
- corrosion.
- bent or pushed-out pins.
- Connect all sunshade motor connector and make sure they seat correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
Yes
INSTALL a new sunshade motor. REFER to Sunshade Motor Sunshade Motor. INITIALIZE the roof opening panel motor. REFER to Motor Initialization Programming and Relearning. TEST the system for normal operation.
No
The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. TEST the system for normal operation.
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