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CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (w/ Light Auto Turn-off System)


B332794C87
1.167,3 1.583,3.25 0.417,0.25 4.167,3 4.583,3.25 0.417,0.25 6.323,3 6.74,3.25 0.417,0.25 1.583,4.583 2,4.833 0.417,0.25 5.5,4.583 5.917,4.833 0.417,0.25 1.417,6.25 1.833,6.5 0.417,0.25 5.167,6.25 5.583,6.5 0.417,0.25 3.333,7.917 3.75,8.167 0.417,0.25 3.615,0.698 3.615,0.313 3.615,0.313 3.802,0.313 false 3.688,1.427 4,1.427 false 3.688,1.927 4,1.927 false 5.146,1.104 5.146,0.313 5.146,0.313 5.333,0.313 false 3.833,0.24 4.135,0.448 0.302,0.208 10 false *1 0.719,1.896 0.948,2.125 0.229,0.229 10 false 3B 1.115,0.865 1.344,1.094 0.229,0.229 10 false 3E 0.771,0.865 1,1.094 0.229,0.229 10 false 3A 1.458,0.865 1.688,1.094 0.229,0.229 10 false 3D 1.823,0.865 2.052,1.094 0.229,0.229 10 false 3C 4.073,1.354 4.406,1.604 0.333,0.25 10 false E31 4.073,1.854 4.625,2.083 0.552,0.229 10 false E107 5.385,0.24 5.688,0.448 0.302,0.208 10 false MB 1.208,3.042 1.625,3.219 0.417,0.177 10 false E107 4.25,3.042 4.583,3.292 0.333,0.25 10 false E31 6.448,3.052 6.781,3.302 0.333,0.25 10 false 3B 1.708,4.635 2.042,4.885 0.333,0.25 10 false 3A 5.625,4.635 5.958,4.885 0.333,0.25 10 false 3E 1.552,6.292 1.885,6.542 0.333,0.25 10 false 3D 5.271,6.292 5.604,6.542 0.333,0.25 10 false 3C 3.438,7.958 3.771,8.208 0.333,0.25 10 false MB
*1 Main Body ECU (Multiplex Network Body ECU) - -


a.

Disconnect the instrument panel junction block assembly and main body ECU (multiplex network body ECU) connectors.


b.

Measure the voltage and resistance according to the value(s) in the table below.

Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
3A-43 - Body ground G - Body ground Battery power supply Always 11 to 14 V
3B-1 - Body ground W - Body ground Battery power supply Always 11 to 14 V
3D-12 - Body ground W-B - Body ground Ground Always Below 1 Ω


c.

Connect the instrument panel junction block assembly and main body ECU (multiplex network body ECU) connectors.


d.

Measure the voltage and check for pulses according to the value(s) in the table below.

Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
3A-7 - Body ground G - Body ground Clearance lights drive output Light control switch in tail or head position 11 to 14 V
Light control switch off Below 1 V
3E-17 - Body ground G - Body ground Taillights drive output Light control switch in tail or head position 11 to 14 V
Light control switch off Below 1 V
3E-32 - Body ground G - Body ground Taillights and license plate lights drive output Light control switch in tail or head position 11 to 14 V
Light control switch off Below 1 V
3A-34 - Body ground B - Body ground Headlight relay drive output Light control switch in head position Below 1 V
Light control switch not in head position 11 to 14 V
3A-51 - Body ground P - Body ground Daytime running light system drive output Daytime running light system operating Below 1 V
Daytime running light system not operating 11 to 14 V
3C-42 - Body ground L - Body ground Front fog light relay drive output Light control switch in tail or head position, fog light switch in front position Below 1 V
Light control switch in tail or head position, fog light switch off 11 to 14 V
3A-52 - Body ground LG - Body ground High beam headlight relay drive output Dimmer switch in high or high flash position Below 1 V
Dimmer switch in low position 11 to 14 V
3D-41 - Body ground L - Body ground Front fog relay power supply output Light control switch in tail or head position 11 to 14 V
Light control switch off Below 1 V
3E-30 - Body ground B - Body ground Parking brake switch input Parking brake switch on Below 1 V
Parking brake switch off 11 to 14 V
E31-5 (HU) - Body ground P - Body ground Dimmer switch high position signal input Dimmer switch in high position Below 1 V
Dimmer switch not in high position Pulse generation
E31-8 (HF) - Body ground R - Body ground Dimmer switch high flash position signal input Dimmer switch in high flash position Below 1 V
Dimmer switch not in high flash position Pulse generation
E31-27 (FFOG) - Body ground G - Body ground Fog light switch front position signal input Fog light switch in front position Below 1 V
Fog light switch off Pulse generation
E31-29 (HEAD) - Body ground L - Body ground Light control switch head position input Light control switch in head position Below 1 V
Light control switch not in head position Pulse generation
E31-30 (TAIL) - Body ground W - Body ground Light control switch tail position signal input Light control switch in tail or head position Below 1 V
Light control switch not in tail or head position Pulse generation
E107-21 (RLEW) - Body ground G - Body ground Light control ECU RH signal input Ignition switch ON, light control switch off 11 to 14 V
Ignition switch ON, light control switch in head position Pulse generation
E107-24 (LLEW) - Body ground L - Body ground Light control ECU LH signal input Ignition switch ON, light control switch off 11 to 14 V
Ignition switch ON, light control switch in head position Pulse generation



CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (w/o Light Auto Turn-off System)


B332798C92
1.75,3 2.167,3.25 0.417,0.25 5.417,3 5.833,3.25 0.417,0.25 1.75,4.583 2.167,4.833 0.417,0.25 5.5,4.583 5.917,4.833 0.417,0.25 1.417,6.25 1.833,6.5 0.417,0.25 5.083,6.25 5.5,6.5 0.417,0.25 3.292,7.917 3.708,8.167 0.417,0.25 3.688,1.427 4.031,1.427 false 3.604,0.698 3.604,0.417 3.604,0.417 3.792,0.417 false 5.146,1.104 5.146,0.271 5.146,0.271 5.344,0.271 false 0.719,1.885 1.031,2.083 0.313,0.198 10 false 3B 1.448,0.823 1.76,1.021 0.313,0.198 10 false 3D 1.104,0.823 1.417,1.021 0.313,0.198 10 false 3E 0.771,0.823 1.083,1.021 0.313,0.198 10 false 3A 1.813,0.823 2.125,1.021 0.313,0.198 10 false 3C 4.073,1.344 4.417,1.583 0.344,0.24 10 false E31 3.854,0.333 4.083,0.542 0.229,0.208 10 false *1 5.406,0.188 5.74,0.396 0.333,0.208 10 false MB 1.844,3.042 2.188,3.281 0.344,0.24 10 false E31 5.552,3.052 5.896,3.292 0.344,0.24 10 false 3B 1.885,4.625 2.229,4.865 0.344,0.24 10 false 3A 5.625,4.615 5.969,4.854 0.344,0.24 10 false 3E 1.552,6.292 1.896,6.531 0.344,0.24 10 false 3D 5.219,6.292 5.563,6.531 0.344,0.24 10 false 3C 3.396,7.958 3.74,8.198 0.344,0.24 10 false MB
*1 Main Body ECU (Multiplex Network Body ECU) - -


a.

Disconnect the instrument panel junction block assembly and main body ECU (multiplex network body ECU) connectors.


b.

Measure the voltage and resistance according to the value(s) in the table below.

Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
3A-43 - Body ground G - Body ground Battery power supply Always 11 to 14 V
3B-1 - Body ground W - Body ground Battery power supply Always 11 to 14 V
3D-12 - Body ground W-B - Body ground Ground Always Below 1 Ω


c.

Connect the instrument panel junction block assembly and main body ECU (multiplex network body ECU) connectors.


d.

Measure the voltage according to the value(s) in the table below.

Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
3A-7 - Body ground G - Body ground Clearance lights drive output Light control switch in tail or head position 11 to 14 V
Light control switch off Below 1 V
3E-17 - Body ground G - Body ground Taillights drive output Light control switch in tail or head position 11 to 14 V
Light control switch off Below 1 V
3E-32 - Body ground G - Body ground Taillights and license plate lights drive output Light control switch in tail or head position 11 to 14 V
Light control switch off Below 1 V
3C-53 - Body ground W - Body ground Taillight relay drive output Light control switch in tail or head position Below 1 V
Light control switch off 11 to 14 V
E31-30 (TAIL) - Body ground W - Body ground Light control switch tail position signal input Light control switch in tail or head position Below 1 V
Light control switch off 11 to 14 V



CHECK COMBINATION METER ASSEMBLY


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