The power distribution box assembly controls the instrument panel illuminations.
Make sure to read the precautions for the airbag system before removing the horn button assembly for a steering pad switch assembly inspection.
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
First perform the communication function inspections in How to Proceed with Troubleshooting to confirm that there are no CXPI communication malfunctions before troubleshooting this symptom.
Turn the light control switch to the TAIL position.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Panel Light Fuse Shut Off Status | Panel light fuse condition | OFF or ON | OFF: Fuse not shut off
ON: Fuse shut off |
- |
| Tester Display |
|---|
| Panel Light Fuse Shut Off Status |
The Data List value displays "OFF".
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Panel Light Input Signal | Panel light input condition | OFF or ON | OFF: Light control switch not in tail position
ON: Light control switch in tail position |
- |
| Tester Display |
|---|
| Panel Light Input Signal |
The GTS display changes correctly in response to the operation of the light control switch.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Panel Light Output Signal | Panel light output condition | OFF or ON | OFF: Panel light off
ON: Panel light on |
- |
| Tester Display |
|---|
| Panel Light Output Signal |
The GTS display changes correctly in response to the operation of the light control switch.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the I2 multiplex network master switch assembly connector.
Disconnect the I8 outer mirror switch assembly connector.
Disconnect the I3 power window regulator switch assembly connector.
Disconnect the J1 rear power window regulator switch assembly (for LH) connector.
Disconnect the J2 rear power window regulator switch assembly (for RH) connector.
w/ Seat Heater System:
Disconnect the L9 refreshing seat switch connector.
Disconnect the E28 combination switch assembly connector.
for HV Model:
Disconnect the E22 air conditioning control assembly connector.
Disconnect the E167 shift position indicator connector.
w/ Power Back Door System:
Disconnect the E14 power back door control switch connector.
Disconnect the E75 hazard warning signal switch assembly connector.
Disconnect the E33 trip switch connector.
for SFTM Made:
Disconnect the E29 electric parking brake switch assembly connector.
for GTMC Made:
Disconnect the E166 electric parking brake switch assembly connector.
Disconnect the E31 VSC OFF switch connector.
Disconnect the Q9 map light assembly connector.
w/ Steering Heater:
Disconnect the E39 steering heater switch connector.
Disconnect the E130 auto high beam switch connector.
for HV Model:
Disconnect the E30 fuel lid opener switch connector.
Disconnect the E79 headlight leveling switch connector.
w/ Panoramic View Monitor System:
Disconnect the E32 panoramic view monitor switch connector.
Disconnect the E20 spiral cable sub-assembly connector.
for 8 Inch Display:
Disconnect the E141 radio and display receiver assembly connector.
for 12.3 Inch Display:
Disconnect the E137 navigation receiver assembly connector.
Measure the resistance according to the value(s) in the table below.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the I2 multiplex network master switch assembly connector.
Turn the light control switch to the TAIL position.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Panel Light Fuse Shut Off Status | Panel light fuse condition | OFF or ON | OFF: Fuse not shut off
ON: Fuse shut off |
- |
| Tester Display |
|---|
| Panel Light Fuse Shut Off Status |
The Data List value displays "OFF".
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the I8 outer mirror switch assembly connector.
Turn the light control switch to the TAIL position.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Panel Light Fuse Shut Off Status | Panel light fuse condition | OFF or ON | OFF: Fuse not shut off
ON: Fuse shut off |
- |
| Tester Display |
|---|
| Panel Light Fuse Shut Off Status |
The Data List value displays "OFF".
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the I3 power window regulator switch assembly connector.
Turn the light control switch to the TAIL position.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Panel Light Fuse Shut Off Status | Panel light fuse condition | OFF or ON | OFF: Fuse not shut off
ON: Fuse shut off |
- |
| Tester Display |
|---|
| Panel Light Fuse Shut Off Status |
The Data List value displays "OFF".
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the J1 rear power window regulator switch assembly (for LH) connector.
Turn the light control switch to the TAIL position.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Panel Light Fuse Shut Off Status | Panel light fuse condition | OFF or ON | OFF: Fuse not shut off
ON: Fuse shut off |
- |
| Tester Display |
|---|
| Panel Light Fuse Shut Off Status |
The Data List value displays "OFF".
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the J2 rear power window regulator switch assembly (for RH) connector.
Turn the light control switch to the TAIL position.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Panel Light Fuse Shut Off Status | Panel light fuse condition | OFF or ON | OFF: Fuse not shut off
ON: Fuse shut off |
- |
| Tester Display |
|---|
| Panel Light Fuse Shut Off Status |
The Data List value displays "OFF".
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| Result | Proceed to |
|---|---|
| w/o Seat Heater System | A |
| w/ Seat Heater System | B |
A
B
Disconnect the L9 refreshing seat switch connector.
Turn the light control switch to the TAIL position.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Panel Light Fuse Shut Off Status | Panel light fuse condition | OFF or ON | OFF: Fuse not shut off
ON: Fuse shut off |
- |
| Tester Display |
|---|
| Panel Light Fuse Shut Off Status |
The Data List value displays "OFF".
| Proceed to |
|---|
| OK |
| NG |
OK
Click hereVehicle Interior>SEAT>SEAT HEATER SWITCH>REMOVAL202111,999999,_58,_111839,_0500783,RM100000001Z3FF,
NG
Disconnect the E28 combination switch assembly connector.
Turn the light control switch to the TAIL position.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Panel Light Fuse Shut Off Status | Panel light fuse condition | OFF or ON | OFF: Fuse not shut off
ON: Fuse shut off |
- |
| Tester Display |
|---|
| Panel Light Fuse Shut Off Status |
The Data List value displays "OFF".
| Proceed to |
|---|
| OK |
| NG |
OK
for HV Model: Click hereDrivetrain>P710 (HYBRID TRANSMISSION / TRANSAXLE)>COMBINATION SWITCH>REMOVAL202111,999999,_52,_111805,_0503483,RM100000001ZETF,
for Gasoline Model: Click hereDrivetrain>K120 / K120F / K121 / K121F (CVT)>COMBINATION SWITCH>REMOVAL202111,999999,_52,_111806,_0499744,RM100000001YZMI,
NG
| Result | Proceed to |
|---|---|
| for Gasoline Model | A |
| for HV Model | B |
A
B
Disconnect the E22 air conditioning control assembly connector.
Turn the light control switch to the TAIL position.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Panel Light Fuse Shut Off Status | Panel light fuse condition | OFF or ON | OFF: Fuse not shut off
ON: Fuse shut off |
- |
| Tester Display |
|---|
| Panel Light Fuse Shut Off Status |
The Data List value displays "OFF".
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the E167 shift position indicator connector.
Turn the light control switch to the TAIL position.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Panel Light Fuse Shut Off Status | Panel light fuse condition | OFF or ON | OFF: Fuse not shut off
ON: Fuse shut off |
- |
| Tester Display |
|---|
| Panel Light Fuse Shut Off Status |
The Data List value displays "OFF".
| Proceed to |
|---|
| OK |
| NG |
OK
for HV Model: Click hereDrivetrain>P710 (HYBRID TRANSMISSION / TRANSAXLE)>SHIFT LEVER>REMOVAL202203,999999,_52,_111805,_0503481,RM1000000022L0Y,
for Gasoline Model: Click hereDrivetrain>K120 / K120F / K121 / K121F (CVT)>SHIFT LEVER>REMOVAL202203,999999,_52,_111806,_0499742,RM1000000022725,
NG
| Result | Proceed to |
|---|---|
| w/o Power Back Door System | A |
| w/ Power Back Door System | B |
A
B
Disconnect the E14 power back door control switch connector.
Turn the light control switch to the TAIL position.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Panel Light Fuse Shut Off Status | Panel light fuse condition | OFF or ON | OFF: Fuse not shut off
ON: Fuse shut off |
- |
| Tester Display |
|---|
| Panel Light Fuse Shut Off Status |
The Data List value displays "OFF".
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the E75 hazard warning signal switch assembly connector.
Turn the light control switch to the TAIL position.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Panel Light Fuse Shut Off Status | Panel light fuse condition | OFF or ON | OFF: Fuse not shut off
ON: Fuse shut off |
- |
| Tester Display |
|---|
| Panel Light Fuse Shut Off Status |
The Data List value displays "OFF".
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the E33 trip switch connector.
Turn the light control switch to the TAIL position.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Panel Light Fuse Shut Off Status | Panel light fuse condition | OFF or ON | OFF: Fuse not shut off
ON: Fuse shut off |
- |
| Tester Display |
|---|
| Panel Light Fuse Shut Off Status |
The Data List value displays "OFF".
| Proceed to |
|---|
| OK |
| NG |
OK
NG
for SFTM Made:
Disconnect the E29 electric parking brake switch assembly connector.
for GTMC Made:
Disconnect the E166 electric parking brake switch assembly connector.
Turn the light control switch to the TAIL position.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Panel Light Fuse Shut Off Status | Panel light fuse condition | OFF or ON | OFF: Fuse not shut off
ON: Fuse shut off |
- |
| Tester Display |
|---|
| Panel Light Fuse Shut Off Status |
The Data List value displays "OFF".
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the E31 VSC OFF switch connector.
Turn the light control switch to the TAIL position.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Panel Light Fuse Shut Off Status | Panel light fuse condition | OFF or ON | OFF: Fuse not shut off
ON: Fuse shut off |
- |
| Tester Display |
|---|
| Panel Light Fuse Shut Off Status |
The Data List value displays "OFF".
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the Q9 map light assembly connector.
Turn the light control switch to the TAIL position.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Panel Light Fuse Shut Off Status | Panel light fuse condition | OFF or ON | OFF: Fuse not shut off
ON: Fuse shut off |
- |
| Tester Display |
|---|
| Panel Light Fuse Shut Off Status |
The Data List value displays "OFF".
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| Result | Proceed to |
|---|---|
| w/o Steering Heater | A |
| w/ Steering Heater | B |
A
B
Disconnect the E39 steering heater switch connector.
Turn the light control switch to the TAIL position.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Panel Light Fuse Shut Off Status | Panel light fuse condition | OFF or ON | OFF: Fuse not shut off
ON: Fuse shut off |
- |
| Tester Display |
|---|
| Panel Light Fuse Shut Off Status |
The Data List value displays "OFF".
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the E130 auto high beam switch connector.
Turn the light control switch to the TAIL position.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Panel Light Fuse Shut Off Status | Panel light fuse condition | OFF or ON | OFF: Fuse not shut off
ON: Fuse shut off |
- |
| Tester Display |
|---|
| Panel Light Fuse Shut Off Status |
The Data List value displays "OFF".
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| Result | Proceed to |
|---|---|
| for Gasoline Model | A |
| for HV Model | B |
A
B
Disconnect the E30 fuel lid opener switch connector.
Turn the light control switch to the TAIL position.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Panel Light Fuse Shut Off Status | Panel light fuse condition | OFF or ON | OFF: Fuse not shut off
ON: Fuse shut off |
- |
| Tester Display |
|---|
| Panel Light Fuse Shut Off Status |
The Data List value displays "OFF".
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the E79 headlight leveling switch connector.
Turn the light control switch to the TAIL position.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Panel Light Fuse Shut Off Status | Panel light fuse condition | OFF or ON | OFF: Fuse not shut off
ON: Fuse shut off |
- |
| Tester Display |
|---|
| Panel Light Fuse Shut Off Status |
The Data List value displays "OFF".
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| Result | Proceed to |
|---|---|
| w/o Panoramic View Monitor System | A |
| w/ Panoramic View Monitor System | B |
A
B
Disconnect the E32 panoramic view monitor switch connector.
Turn the light control switch to the TAIL position.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Panel Light Fuse Shut Off Status | Panel light fuse condition | OFF or ON | OFF: Fuse not shut off
ON: Fuse shut off |
- |
| Tester Display |
|---|
| Panel Light Fuse Shut Off Status |
The Data List value displays "OFF".
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the z10 steering pad switch assembly connector.
Turn the light control switch to the TAIL position.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Panel Light Fuse Shut Off Status | Panel light fuse condition | OFF or ON | OFF: Fuse not shut off
ON: Fuse shut off |
- |
| Tester Display |
|---|
| Panel Light Fuse Shut Off Status |
The Data List value displays "OFF".
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Connect the z10 steering pad switch assembly connector.
Disconnect the E20 spiral cable sub-assembly connector.
Turn the light control switch to the TAIL position.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Panel Light Fuse Shut Off Status | Panel light fuse condition | OFF or ON | OFF: Fuse not shut off
ON: Fuse shut off |
- |
| Tester Display |
|---|
| Panel Light Fuse Shut Off Status |
The Data List value displays "OFF".
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| Result | Proceed to |
|---|---|
| for 8 Inch Display | A |
| for 12.3 Inch Display | B |
A
B
Disconnect the E141 radio and display receiver assembly connector.
Turn the light control switch to the TAIL position.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Panel Light Fuse Shut Off Status | Panel light fuse condition | OFF or ON | OFF: Fuse not shut off
ON: Fuse shut off |
- |
| Tester Display |
|---|
| Panel Light Fuse Shut Off Status |
The Data List value displays "OFF".
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the E137 navigation receiver assembly connector.
Turn the light control switch to the TAIL position.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Panel Light Fuse Shut Off Status | Panel light fuse condition | OFF or ON | OFF: Fuse not shut off
ON: Fuse shut off |
- |
| Tester Display |
|---|
| Panel Light Fuse Shut Off Status |
The Data List value displays "OFF".
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Measure the resistance according to the value(s) in the table below.
| Proceed to |
|---|
| OK |
| NG |
OK
NG