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Under-Dash Fuse/relay Box (4-cyl) Acura TSX II

Fuses & Circuit Breakers 4 illustrations ~939 words

Driver's Under-Dash Fuse/Relay Box (MICU) Removal and Installation

Special Tools Required

Relay Puller 07AAC-000A2A1 or 07AAC-000A1A0

USA models

Note. SRS components are located in this area. Review the SRS component locations (see COMPONENT LOCATION INDEX ), and precautions and procedures (see PRECAUTIONS AND PROCEDURES ) before doing repairs or servicing.

Scheme 7

Scheme 7: Removal
Scheme 7: Removal
  1. Do the battery terminal disconnection procedure (see «BATTERY TERMINAL DISCONNECTION AND RECONNECTION»(/acura/tsx/ii-2008-2014/remont/body-electrical/#battery-4-cyl) ).
  2. Remove the driver's dashboard undercover (see «DRIVER'S DASHBOARD UNDERCOVER REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/gauges-instrument-panels/#dashboard-4-cyl__drivers-dashboard-undercover-removalinstallation) ), then remove the dashboard lower cover (see «DRIVER'S DASHBOARD LOWER COVER REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/gauges-instrument-panels/#dashboard-4-cyl__drivers-dashboard-lower-cover-removalinstallation) ).
  3. Disconnect the connectors from the fuse side of the driver's under-dash fuse/relay box (A).
  4. Remove the mounting bolt (B) and release the tab (C), and then pull the driver's under-dash fuse/relay box away from the body.
  5. Disconnect the connectors from the back side of the driver's under-dash fuse/relay box, then remove the driver's under-dash fuse/relay box.
  6. Carefully remove the relays using the relay puller (see «POWER RELAY TEST»(/acura/tsx/ii-2008-2014/remont/body-electrical/#relays-4-cyl__power-relay-test) ) by prying under the base of the relay.

Note. Do not use pliers. Pliers will damage the relays, which could cause the engine to stall or not start.

Installation

Note. The driver's MICU which is part of the driver's under-dash fuse/relay box is a component of the immobilizer system. Because of this construction, the driver's MICU must be registered, when the driver's under-dash fuse/relay box is replaced, or the vehicle will not start.

  1. Install the relays and connect the connectors to the driver's under-dash fuse/relay box, then install the driver's under-dash fuse/relay box in the reverse order of removal.
  2. Install the removed parts in the reverse order of removal.
  3. Do the battery terminal reconnection procedure (see «BATTERY TERMINAL DISCONNECTION AND RECONNECTION»(/acura/tsx/ii-2008-2014/remont/body-electrical/#battery-4-cyl) ).
  4. If the driver's under-dash fuse/relay box is replaced, go to step 5. If the original driver's under-dash fuse/relay box is installed, go to step 10.
  5. Connect the HDS to the DLC.
  6. Turn the ignition switch to ON (II).
  7. Select IMMOBI from the SYSTEM SELECTION MENU, then select IMMOBILIZER SETUP.
  8. Select the REPLACE MPCS/MICU/IMOES, then select the suitable menu from the HDS indications.
  9. After registration, confirm that the vehicle will start.
  10. Confirm that all systems work properly.

Special Tools Required

Relay Puller 07AAC-000A2A1 or 07AAC-000A1A0

Canada models

Note. SRS components are located in this area. Review the SRS component locations (see COMPONENT LOCATION INDEX ), and precautions and procedures (see PRECAUTIONS AND PROCEDURES ) before doing repairs or servicing.

Scheme 8

Scheme 8: Removal
Scheme 8: Removal

Scheme 9

Scheme 9
Scheme 9
  1. Do the battery terminal disconnection procedure (see «BATTERY TERMINAL DISCONNECTION AND RECONNECTION»(/acura/tsx/ii-2008-2014/remont/body-electrical/#battery-4-cyl) ).
  2. Remove the driver's dashboard undercover (see «DRIVER'S DASHBOARD UNDERCOVER REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/gauges-instrument-panels/#dashboard-4-cyl__drivers-dashboard-undercover-removalinstallation) ), then remove the dashboard lower cover (see «DRIVER'S DASHBOARD LOWER COVER REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/gauges-instrument-panels/#dashboard-4-cyl__drivers-dashboard-lower-cover-removalinstallation) ).
  3. Loosen the bolts (A), then remove the bolt (B) from the bracket (C).
  4. Remove the bracket from the driver's under-dash fuse/relay box (D).
  5. Disconnect the connectors from the fuse side of the driver's under-dash fuse/relay box (A).
  6. Remove the screws and cover (B) from the driver's under-dash fuse/relay box.
  7. Remove the mounting bolt (C), release the tab (D), and pull the driver's under-dash fuse/relay box away from the body.
  8. Disconnect the connectors from the backside of the driver's under-dash fuse/relay box, then remove the driver's under-dash fuse/relay box.
  9. Carefully remove the relays using the relay puller (see «POWER RELAY TEST»(/acura/tsx/ii-2008-2014/remont/body-electrical/#relays-4-cyl__power-relay-test) ) by prying under the base of the relay.

Note. Do not use pliers. Pliers will damage the relays, which could cause the engine to stall or not start.

Note. The driver's MICU which is part of the driver's under-dash fuse/relay box is a component of the immobilizer system. Because of this construction, the driver's MICU must be registered, when the driver's under-dash fuse/relay box is replaced, or the vehicle will not start.

  1. Install the relays and connect the connectors to the driver's under-dash fuse/relay box, then install the driver's under-dash fuse/relay box in the reverse order of removal.
  2. Install the removed parts in the reverse order of removal.
  3. Do the battery terminal reconnection procedure (see «BATTERY TERMINAL DISCONNECTION AND RECONNECTION»(/acura/tsx/ii-2008-2014/remont/body-electrical/#battery-4-cyl) ).
  4. If the driver's under-dash fuse/relay box is replaced, go to step 5. If the original driver's under-dash fuse/relay box is installed, go to step 10.
  5. Connect the HDS to the DLC.
  6. Turn the ignition switch to ON (II).
  7. Select IMMOBI from the SYSTEM SELECTION MENU, then select IMMOBILIZER SETUP.
  8. Select the REPLACE MPCS/MICU/IMOES, then select the suitable menu from the HDS indications.
  9. After registration, confirm that the vehicle will start.
  10. Confirm that all systems work properly.

Passenger's Under-Dash Fuse/Relay Box (MICU) Removal and Installation

Note. SRS components are located in this area. Review the SRS component locations (see COMPONENT LOCATION INDEX ), and precautions and procedures (see PRECAUTIONS AND PROCEDURES ) before doing repairs or servicing.

Scheme 10

Scheme 10: Removal
Scheme 10: Removal
  1. Do the battery terminal disconnection procedure (see «BATTERY TERMINAL DISCONNECTION AND RECONNECTION»(/acura/tsx/ii-2008-2014/remont/body-electrical/#battery-4-cyl) ).
  2. Remove the passenger's kick panel (see «TRIM REMOVAL/INSTALLATION - DOOR AREAS»(/acura/tsx/ii-2008-2014/remont/exteriorinterior-trim/#interior-trim-4-cyl__trim-removalinstallation-door-areas) ).
  3. Disconnect the connectors from the passenger's under-dash fuse/relay box (A).
  4. Loosen the mounting bolt from the lower side of passenger's under-dash fuse/relay box.
  5. Remove the mounting bolt from the upper side of passenger's under-dash fuse/relay box, and remove the passenger's under-dash fuse/relay box.
  1. Install the relays and connect the connectors to the passenger's under-dash fuse/relay box, then install the passenger's under-dash fuse/relay box in the reverse order of removal.
  2. Install the removed parts in the reverse order of removal.
  3. Do the battery terminal reconnection procedure (see «BATTERY TERMINAL DISCONNECTION AND RECONNECTION»(/acura/tsx/ii-2008-2014/remont/body-electrical/#battery-4-cyl) ).
  4. Confirm that all systems work properly.

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