
ELECTRICAL TEST
TEST DESCRIPTION
The following numbers refer to the Steps in the diagnostic chart.
1. Checks whether the sunroof operates correctly in any mode.
2. Checks that battery voltage is more than 11.5 V. The sunroof requires more than 11.5 V to operate correctly.
3. Checks that circuit breaker F3 within the passenger compartment fuse and relay panel assembly is not tripped.
4. Checks that fusible link F105 within the engine compartment fuse and relay panel assembly is serviceable.
5. Checks that fuses F10 and F19 within the passenger compartment fuse and relay panel assembly are
serviceable.
6. Checks whether there is battery voltage at connector A108 – X1 pin 1. Isolates whether the power supply
electrical circuits are at fault.
7. Checks whether there is battery voltage at connector A108 – X1 pin 3. Isolates whether the power supply
electrical circuits are at fault, with the ignition switch in the ON position.
8. Checks whether there is battery voltage at connector A108 – X1 pin 2. Isolates whether the ground circuit is at
fault.
9. Chec ks whether ther e is battery voltage at circuit breaker F3. Isolates whether sunroof power harness between
circuit breaker F3 and connector A108 – X1 pin 1 is at fault.
10. Chec ks whether there is battery voltage at fuse F19. Isolates whether sunr oof power harnes s between fuse F19
and connector A108 – X1 pin 3 is at fault.
11. Checks that the sunroof switch and sunroof control harness are serviceable.
12. Checks that the sunroof control harness is serviceable. Isolates whether the sunroof control harness or the
sunroof switch is at fault.
13. Checks whether there is correct voltage values at connector X321, with the ignition switch in the ON position.
14. Checks whether there is correct voltage values at connector X321, with the ignition switch in the OFF position.
15. Checks that the sunroof harness is serviceable. Isolates whether the sunroof harness or the SCU is at fault.
16. Checks whether there is battery voltage at connector A108 – X2 pin 2. Isolates whether the SCU is at fault.
17. Checks whether there is battery voltage at connector A108 – X2 pin 1. Isolates whether the drive motor or the
SCU is at fault.
STEP ACTION YES NO
1. 1. Turn the ignition switch to the ON position.
2. Perform the sunroof functional test, refer to
FUNCTIONAL TEST DESCRIPTION.
Does the sunroof operate correctly in any mode?
Go to Step 11. Go to Step 2.
2. 1. Check the battery voltage, refer to Section 12A,
2.9 BATTERY.
Is the battery voltage more than 11.5 V? Go to Step 3. Refer to Section 12A,
2.9 BATTERY for
further diagnosis.
3. 1. Check the circuit breaker F3, refer to Section 12O,
2.2 CIRCUIT BREAKERS.
Is the circuit breaker F3 tripped?
Allow circuit breaker to
reset, refer to
Section 12O,
2.2 CIRCUIT
BREAKERS.
Go to Step 4.
4. 1. Check the fusible link F105, refer to Section 12O,
2.3 FUSIBLE LINKS.
Is the fusible link F105 serviceable? Go to Step 5. Replace the fusible link.
5. 1. Check fuses F10 and F19, refer to Section 12O,
2.1 FUSES.
Are the fuses F10 and F19 serviceable? Go to Step 6. Replace the fuse.
6. 1. Remove the headlining, refer to Section 1A8,
! 2.12 HEADLINING ASSEMBLY (sedan)
! 3.15 HEADLINING ASSEMBLY (wagon)
2. Back probe SCU connector A108 – X1 pin 1 with a
test lamp.
Does the test lamp illuminate?
Go to Step 7. Go to Step 9.
7. 1. Back probe SCU connector A108 – X1 pin 3 with a
test lamp.
Does the test lamp illuminate? Go to Step 8. Go to Step 10.