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DTC B2272: Left Mirror Motor Fault

WARNING: This page is about a different car, the 2000 Chevrolet Corvette, 1999 Chevrolet Corvette, and 1998 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform DIAGNOSTIC SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM. Go to next step.
  2. If left-side power mirror moves left and right using left door switch, go to next step. If left-side power mirror does not move left and right, go to step  6 .
  3. Turn ignition off. Disconnect left power mirror 8-pin connector C1. Turn ignition on. Using DVOM, check voltage between left power mirror harness connector C1 terminals "A" (Yellow wire) and "C" (Light Green wire). See Fig 1 . Move power mirror up, then down. If reading is 10-14 volts in both positions, go to next step. If reading is not 10-14 volts in both positions, go to step  5 .
  4. Check mirror vertical and horizontal position sensor circuits for poor connections or intermittent operation. See WIRING DIAGRAMS  . If mirror vertical and horizontal position sensor circuits check okay, go to step  8 .
  5. Check for open, short to ground or short to voltage in Yellow or Light Green wire between left power mirror connector C1 and Left Door Control Module (LDCM) connector C1. See WIRING DIAGRAMS  . Repair as necessary. If circuits are okay, replace LDCM. See DOOR CONTROL MODULE  under REMOVAL & INSTALLATION. Recheck system operation.
  6. Turn ignition off. Disconnect left power mirror 8-pin connector C1. Turn ignition on. Using DVOM, check voltage between left power mirror harness connector C1, terminals "F" (White wire) and "H" (Light Blue wire). See Fig 1 . Move power mirror left, then right. If reading is not 10-14 volts in both positions, go to next step. If reading is 10-14 volts in both positions, go to step  4 .
  7. Check for open, short to ground or short to voltage in White or Light Blue wire between left power mirror connector C1 and Left Door Control Module (LDCM) connector C1. Repair as necessary. If circuits are okay, replace LDCM. See DOOR CONTROL MODULE  under REMOVAL & INSTALLATION. Recheck system operation.
  8. Replace left power mirror. See POWER MIRROR ASSEMBLY  under REMOVAL & INSTALLATION. Recheck system operation.
Fig 1: Identifying Power Mirror Connector C1 Terminals
G99H02286Courtesy of GENERAL MOTORS CORP.
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