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DTC Troubleshooting: B1011

DTC B1011:
 MICU Lost Communication with Gauge Control Module (VSP/NE Message)
NOTE: Before troubleshooting, check the No. 1 (10 A) fuse in the under-dash fuse/relay box and No. 22 (7.5 A) fuse in the under-dash fuse/relay box.
  1. Clear the DTCs with the HDS.
  1. Turn the ignition switch to LOCK (0), and then back to ON (II).
  1. Wait for 6 seconds or more.
  1. Check for DTCs with the HDS.
Is DTCs B1011 indicated?
YES -
Go to Step 5 .
NO -
Intermittent failure, the gauge control module is OK at this time. Check for loose or poor connections between the gauge control module and under-dash fuse/relay box connector Q (16P). If the connections are good, check the battery condition and the charging system.■
  1. Check for DTCs with the HDS.
Are DTCs B1000 and B1011 all indicated?
YES -
Go to DTC troubleshooting B1000.
NO -
Go to Step 6 .
  1. Select the BODY ELECTRICAL system select menu, then enter the UNIT INFORMATION menu.
  1. Check the condition of the gauge control module from the CONNECTED UNIT.
Is NOT AVAILABLE indicated?
YES -
Go to Step 8 .
NO -
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect the gauge control module 32P connector.
  1. Turn the ignition switch to ON (II).
  1. Measure the voltage between the gauge control module 32P connector No. 16 and No. 32 terminals and body ground individually.
Is there battery voltage?
YES -
Go to Step 12 .
NO -
Repair an open in the wire.■
  1. Turn the ignition switch to LOCK (0).

  1. Check for continuity between the gauge control module 32P connector No. 13 and No. 17 terminals and body ground individually.
Is there battery voltage?
YES -
Go to Step 14 .
NO -
Repair an open in the wire poor ground (G501).■
  1. Disconnect under-dash fuse/relay box connector Q (16P).
  1. Disconnect the gauge control module 32P connector.

  1. Check for continuity between under-dash fuse/relay box connector Q (16P) No. 3 terminal and gauge control module 32P connector No. 18 terminal.
Is there continuity?
YES -
NO -
An open in the wire between the MICU and the gauge control module.■