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Horn System: Other Chevrolet Sonic I

Horns 2 illustrations ~369 words

Reference Information

Schematic Reference

Horn Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Horns System Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(ref-542498-S42729642072013041600000)
  2. «Connector Repairs»(ref-542498-S10348064002013041600000)
  3. «Testing for Intermittent Conditions and Poor Connections»(ref-542498-S27468711012013041600000)
  4. «Wiring Repairs»(ref-542498-S06256207262013041600000)

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

  1. Ignition ON.
  2. Verify the operation of the P12 Horn when commanding the Horn Relay On and Off with a scan tool. If the P12 Horn is always ON or always OFF Refer to «Circuit/System Testing»(ref-542514-S29607152292013041600000) . If the P12 Horn turns ON and OFF
  3. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

  1. «Front Compartment Fuse Block Replacement»(ref-542513-S26068647062013041600000)
  2. «Control Module References»(ref-542499-S01936129122013041600000) for Body Control Module replacement, programming and setup

Symptoms - Horns

IMPORTANTThe following steps must be completed before using the symptom tables: Perform Diagnostic System Check - Vehicle , before using the symptom tables in order to verify that all of the following are true: There are no DTCs set The control modules can communicate via the serial data link Review the system operation in order to familiarize yourself with the system functions. Refer to Horns System Description and Operation .

Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections .

Schematic Reference

Horn Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Horns System Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(ref-542498-S42729642072013041600000)
  2. «Connector Repairs»(ref-542498-S10348064002013041600000)
  3. «Testing for Intermittent Conditions and Poor Connections»(ref-542498-S27468711012013041600000)
  4. «Wiring Repairs»(ref-542498-S06256207262013041600000)

Scan Tool Reference

Control Module References for scan tool information

  1. Ignition ON.
  2. Verify the scan tool Horn Switch parameter changes between Active and Inactive when pressing and releasing the horn pad. If the parameter does not change Refer to «Circuit/System Testing - Horn Switch Malfunction»(ref-542514-S05043422662013041600000) . If the parameter changes
  3. Verify the P12 Horn turns ON and OFF and emits a clear and even tone when commanding the Horn Relay On and Off with a scan tool. If the P12 Horn does not turn ON and OFF Refer to «Circuit/System Testing - Horns or Horn Command Malfunction»(ref-542514-S05043422662013041600000) . If the sound emitted is not clear and even Refer to «Circuit/System Testing - Horn - Poor Tone»(ref-542514-S05043422662013041600000) . If the P12 Horn turns ON and OFF and emit a even and clear tone
  4. All OK.

Perform the Diagnostic Repair Verification after completing the repair.

  1. «Steering Wheel Horn Contact Replacement»(ref-542514-S30135550242013041600000)
  2. «Horn Replacement»(ref-542514-S31082383942013041600000)
  3. «Front Compartment Fuse Block Replacement»(ref-542513-S26068647062013041600000)
  4. «Control Module References»(ref-542499-S01936129122013041600000) for body control module replacement, programming and setup

Scheme 2

Scheme 2: Horn Replacement
Scheme 2: Horn Replacement
CalloutComponent Name
Preliminary Procedure Remove the front wheelhouse liner front. Refer to Front Wheelhouse Liner Replacement (Rear) , Front Wheelhouse Liner Replacement (Front) .
1Horn Nut CAUTION: Refer to Fastener Caution . Tighten 17 N.m (13 lb ft)
2Horn Procedure Disconnect the electrical connector.
CAUTION
Refer to Fastener Caution .

Horn Replacement

Scheme 3

Scheme 3: Steering Wheel Horn Contact Replacement
Scheme 3: Steering Wheel Horn Contact Replacement
CalloutComponent Name
Preliminary Procedure Remove the steering wheel inflatable restraint module. Refer to Airbag Steering Wheel Module Replacement .
1Steering Wheel Horn Contact Spring Retainer Bolt (Qty: 3) CAUTION: Refer to Fastener Caution . Tighten 5.5 N.m(49 lb in)
2Steering Wheel Horn Contact Assembly Procedure Disconnect the electrical connectors.
CAUTION
Refer to Fastener Caution .

Steering Wheel Horn Contact Replacement

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