Page 473 of 788
HAZARD WARNING LAMP SWITCH
CHASSIS ELECTRICAL54A-85
HAZARD WARNING LAMP SWITCH
TROUBLESHOOTING
M1542000701333
FLASHER TIMER FUNCTION
The hazard warning lamps (flasher timer function)
are controlled by the Smart Wiring System (SWS).
For troubleshooting, refer to respective Groups
below.•Not using SWS monitor: GROUP 54B, SWS
Troubleshooting P.54B-38.
•Using SWS monitor: GROUP 54C, SWS
Troubleshooting P.54C-22.
SPECIAL TOOL
M1542000600935
AC304717AB
2
1 3 4
56
Removal steps
1. Licence plate lamp lens
2. Packing
3. Licence plate lamp body4. Socket
5. Licence plate lamp bulb
6. HarnessRemoval steps (Continued)
Tool Number Name Use
MB990784 Ornament remover Removal of centre panel and
centre air outlet panel
MB990784
Page 474 of 788
HAZARD WARNING LAMP SWITCH
CHASSIS ELECTRICAL54A-86
HAZARD WARNING LAMP SWITCH
REMOVAL AND INSTALLATIONM1542006600449
INSPECTIONM1542011200920
HAZARD WARNING LAMP SWITCH
CONTINUITY CHECK
AC304721AB
3
4
2
15
Removal steps
1. Knob
2. Centre panel
3. Meter bezel4. Centre air outlet panel
5. Hazard warning lamp switchRemoval steps (Continued)
AC305304
Switch position Tester
connectionSpecified
condition
Released 1 − 2 Open circuit
Pressed 1 − 2 Less than 2
ohms
Page 475 of 788
COLUMN SWITCH
CHASSIS ELECTRICAL54A-87
COLUMN SWITCH
SPECIAL TOOLM1542000600946
COLUMN SWITCH
REMOVAL AND INSTALLATION
M1543009100446
Tool Number Name Use
MB990784 Ornament remover Removal of column cover
MB990784
AC305305AB
2
1
Claw
A
AA
AA
A
A
A
1
4 2
3
Removal steps
1. Lower column cover
2. Upper column cover3. Turn-signal and lighting switch
4. Windshield wiper and washer switchRemoval steps (Continued)
Page 476 of 788
COLUMN SWITCH
CHASSIS ELECTRICAL54A-88
INSPECTIONM1542011200931
TURN-SIGNAL AND LIGHTING SWITCH
CHECK
NOTE: Integrated column ECU does not allow
windshield wiper switch continuity test. For
inspection and diagnosis, refer to the respective
Group below.
.
•Not using SWS monitor: GROUP 54B, SWS
Troubleshooting P.54B-38.
•Using SWS monitor: GROUP 54C, SWS
Troubleshooting P.54C-22.
1
6
8
11 109 7 5 4 3 21
6
8
11 109 7 5 4
3
2
AC005499
At lighting
switch sideAt wiper/washer
switch side
AD
Switch position Tester condition Specified
condition
OFF 3 − 4, 3 − 6, 3 − 7,
3 − 8, 3 − 9, 3 − 10,
3 − 11Open
circuit
Headlamp
washer switch3 − 4 Less than
2 ohms
Headlamp
switch3 − 6 Less than
2 ohms
Tail lamp switch 3 − 7 Less than
2 ohms
Passing switch 3 − 8 Less than
2 ohms
Dimmer switch 3 − 9 Less than
2 ohms
Turn-signal lamp
switch (RH)3 − 10 Less than
2 ohms
Turn-signal lamp
switch (LH)3 − 11 Less than
2 ohms
Page 477 of 788
HORN
CHASSIS ELECTRICAL54A-89
HORN
REMOVAL AND INSTALLATIONM1543007900413
HORN RELAY CONTINUITY CHECKM1543019502418
AC304666AB
1 2
Removal Steps
1. Horn
2. Horn
AC305306
1 4
3 2
AB
Horn relay
Battery voltage Tester
connectionSpecified
condition
Not applied 1 − 4 Open circuit
•Connect terminal
2 to the positive
battery terminal
•Connect terminal
3 to the negative
battery terminal1 − 4 Less than 2
ohms
Page 478 of 788
CLOCK
CHASSIS ELECTRICAL54A-90
CLOCK
SPECIAL TOOLM1543000601663
CLOCK
REMOVAL AND INSTALLATION
M1543005900224
Tool Number Name Use
MB990784 Ornament remover Removal of centre panel and
centre air outlet panel
MB990784
AC304720AB
3
4
25
1
Removal steps
1. Knob
2. Centre panel
3. Meter bezel4. Centre air outlet panel
5. ClockRemoval steps (Continued)
Page 479 of 788
CIGARETTE LIGHTER
CHASSIS ELECTRICAL54A-91
CIGARETTE LIGHTER
INSPECTIONM1543005700242
CIGARETTE LIGHTER CHECK
•Take out the plug, and check for a worn edge on
the element spot connection, and for shreds of
tobacco or other material on the element.
•Using an ohmmeter, check that the element
resistance value is 1.7 ohms.
RHEOSTAT
REMOVAL AND INSTALLATIONM1542006000306
ACX01832AE
Element
Spot
AC304905AB
2
1
Removal steps
1. Switch panel
2. Rheostat switch
Page 480 of 788
RHEOSTAT
CHASSIS ELECTRICAL54A-92
INSPECTIONM1542006100228
RHEOSTAT RESISTANCE CHECK
1. Connect the battery and the test bulb (40 W) as
shown in the illumination.
2. Operate the rheostat, and if brightness changes
smoothly without switching off, rheostat function is
normal.
AC305310
AB
40 W