2005 Saturn Ion Service & Repair Manual

1 of 52 3/17/2008 7:11 PM 2004 ACCESSORIES & EQUIPMENT Body Control System - Ion SPECIFICATIONS FASTENER TIGHTENING SPECIFICATIONS Fastener Tightening Specifications Application Specification Metric English Body Control Module Nuts 10 N.m 88 lb in Center Support Bracket Nuts 10 N.m 88 lb in Console Screws 2.5 N.m 22 lb in SCHEMATIC AND ROUTING DIAGRAMS BODY CONTROL SYSTEM SCHEMATICS Refer to System Wiring Diagrams . COMPONENT LOCATOR BODY CONTROL SYSTEM COMPONENT VIEWS

2 of 52 3/17/2008 7:11 PM Fig. 1: Lower Center Of I/P Component View Courtesy of GENERAL MOTORS CORP. Callouts For Fig. 1 Callout Component Name 1 Body Control Module (BCM) BODY CONTROL SYSTEM CONNECTOR END VIEWS Body Control Module (BCM) C1 Terminal Identification

3 of 52 3/17/2008 7:11 PM Connector Part Information 1326143-2 37-Way F AMP (BK) Pin Wire Color Circuit No. Function 1 - - Not Used 2 OG 840 Battery Positive Voltage (2.0L) 3 YE 243 Accessory Voltage 4 YE 443 Accessory Voltage 5 D-BU 1307 Power Window Master Switch Lockout Control (Sedan) 6 D-BU 1307 Power Window Master Switch Lockout Control (Sedan w/A31) 7 D-BU 1307 Power Window Master Switch Lockout Control (Sedan w/A31) 8-17 - - Not Used 18 GY 120 Fuel Pump Supply Voltage 19 D-GN/WH 465 Fuel Pump Relay Control 20 OG 1140 Battery Positive Voltage 21 RD 142 Battery Positive Voltage 22 RD 442 Battery Positive Voltage 23 BN 441 Ignition 3 Voltage (A31) 24 - - Not Used 25 PK 1200 Headlamp High Beam Signal 26 L-BU 20 Stop Lamp Switch Signal 27 L-BU 20 Stop Lamp Switch Signal 28 L-BU 20 Stop Lamp Switch Signal 29 L-BU 20 Stop Lamp Switch Signal 30 L-BU 20 Stop Lamp Switch Signal 31 - - Not Used 32 PK 3 Ignition 1 Voltage 33 - - Not Used 34 RD 342 Battery Positive Voltage 35-36 - - Not Used 37 RD 242 Battery Positive Voltage Body Control Module (BCM) C2 Terminal Identification Connector Part Information 1326143-1 38-Way F AMP (GY) Pin Wire Color Circuit No. Function

4 of 52 3/17/2008 7:11 PM Connector Part Information 1326143-1 38-Way F AMP (GY) Pin Wire Color Circuit No. Function 1 - - Not Used 2 OG 40 Battery Positive Voltage 3 OG 240 Battery Positive Voltage 4 - - Not Used 5 BN 9 Park Lamp Supply Voltage (T82) 6 OG 840 Battery Positive Voltage 7 PK 1200 Headlamp High Beam Signal 8 L-BU 20 Stop Lamp Switch Signal 9 - - Not Used 10 PK 339 Ignition 1 Voltage (M86 or MU3) 11 PK 339 Ignition 1 Voltage 12 - - Not Used 13 OG 52 Blower Motor Supply Voltage 14 BN 41 Ignition 3 Voltage 15 BN 141 Ignition 3 Voltage 16 - - Not Used 17 OG 1040 Battery Positive Voltage 18 OG 1440 Battery Positive Voltage 19-20 - - Not Used 21 OG 40 Battery Positive Voltage 22 YE 143 Accessory Voltage 23 YE 143 Accessory Voltage (M43 or M75) 24-27 - - Not Used 28 PK 339 Ignition 1 Voltage (2.2L w/K34) 29 YE 343 Accessory Voltage 30 - - Not Used 31 OG 52 Blower Motor Supply Voltage 32 OG 52 Blower Motor Supply Voltage 33 YE 1139 Ignition 1 Voltage 34 - - Not Used 35 PK 1539 Ignition 1 Voltage 36-37 - - Not Used

5 of 52 3/17/2008 7:11 PM Connector Part Information 1326143-1 38-Way F AMP (GY) Pin Wire Color Circuit No. Function 38 OG 140 Battery Positive Voltage Body Control Module (BCM) C3 Terminal Identification Connector Part Information 1326144-1 56-Way F AMP (BK) Pin Wire Color Circuit No. Function 1 BK/WH 56 Trunk Release Motor Supply Voltage 2 TN 694 Driver Door Lock Actuator Unlock Control (AU3) 3 OG 1732 Inadvertent Power Supply Voltage 4 D-BU 338 Run/Crank Voltage 5 BN 4 Accessory Voltage 6 BN 9 Park Lamp Supply Voltage 7 BN 9 Park Lamp Supply Voltage 8 BN 9 Park Lamp Supply Voltage 9 BN 9 Park Lamp Supply Voltage 10 RD 228 Windshield Washer Pump Control 11 WH 156 Courtesy Lamp Low Control 12 OG 1732 Inadvertent Power Supply Voltage (2.2L) 13 OG 1732 Inadvertent Power Supply Voltage (DG7)

2005 Saturn Ion Service & Repair Manual

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