Frelander 2. Manual - part 594
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Is the fused link (VBATT) circuit to the roof opening panel motor
intact?
Yes
GO to C2
.
No
The fused link to the roof opening panel motor has failed.
Refer to the electrical circuit diagrams and check the
(VBATT) circuit between the fused link and the roof opening
panel motor for short circuit to ground. Replace the fused link
or repair the circuit as required. Check for correct roof
opening panel operation.
C2: VEHICLE - AUTHORIZATION
• NOTE: With the ignition state ON the authorization signal voltage is supplied on the (ACC) circuit of the roof opening panel motor, and
should be greater than 7volts when the roof panel authorization signal is active and less than 1volt when the roof panel authorization signal
is inactive.
Access the roof opening panel switch.
REFER to:
Overhead Console
(501-12 Instrument Panel and
Console, Removal and Installation).
Refer to the electrical circuit diagrams and check the (ACC)
circuit to the roof opening panel motor for correct operation
(see note above).
Does the (ACC) circuit to the roof opening panel motor show the
expected voltages?
Yes
GO to C3
.
No
Confirm DTC B10F2-14 (Sunroof control - circuit short to
ground or open) has been stored, refer to the electrical circuit
diagrams and check the (ACC) circuit between the central
junction box and the roof opening panel motor for fault.
Repair as required.If the DTC has not been stored,
investigate the central junction box (ACC) circuit operation.
C3: ROOF OPENING PANEL - SWITCH CONNECTOR
Refer to the electrical circuit diagrams and check the roof
opening panel switch terminals and housing for location and
condition.
Are the roof opening panel switch terminals and housing located
correctly and in good condition?
Yes
GO to C4
.
No
Correctly relocate or replace any roof opening panel switch
connector terminals as required. Check for correct roof
opening panel operation.
C4: ROOF OPENING PANEL - MOTOR CONNECTOR
Access the roof opening panel motor.
REFER to:
Roof Opening Panel Motor
(501-17 Roof Opening
Panel, Removal and Installation).
Refer to the electrical circuit diagrams and check the roof
opening panel motor terminals and housing for location and
condition.
Are the roof opening panel motor connector terminals and housing
located correctly and in good condition?
Yes
GO to C5
.
No
Correctly relocate or replace any roof opening panel motor
connector terminals as required. Check for correct roof
opening panel operation.
C5: SWITCH - CIRCUIT CHECK 1
• NOTE: The roof opening panel motor gives a voltage out on the open and close circuits which is grounded when the switch is operated, this
voltage should be greater than 7volts (switch inactive) and less than 1volt (switch active) with the ignition state switched to on.
Refer to the electrical circuit diagrams and locate the open
and close circuits between the roof opening panel motor and
the roof opening panel switch, monitor the voltage on each
circuit as the switch is operated
Do both open and close switch circuit voltages change from
greater than 7volts to less than 1volt when the roof opening
panel open or close switches are operated?
Yes
GO to C8
.
No
GO to C6
.
C6: SWITCH - CIRCUIT CHECK 2
• NOTE: During the previous check, if the voltage remained high (greater than 7volts), refer to the electrical circuit diagrams and check the
switch circuit for fault.
• NOTE: During the previous check, if the voltage remained low (less than 1volt), refer to the electrical circuit diagrams and check the roof
opening panel motor circuit for fault.
Refer to notes above.
Did the voltage remain low (less than 1volt)?
Yes
GO to C7
.
No
The voltage remained high (above 7volts) refer to the
electrical circuit diagrams and check the roof opening panel
switch circuit for fault.
C7: MOTOR SUPPLY - VOLTAGE
Refer to the electrical circuit diagrams and check the voltage
between the power (VBATT) and ground (GND) circuits to
the roof opening panel motor for battery supply voltage
(approx. 12volts).