Repair manual
Wiring diagrams
Chevrolet Caprice Impala SS Repair Manual
Step-by-step repair and maintenance instructions for the Chevrolet Caprice Impala SS (1995–1996): removal, installation, adjustment, diagnostics and parameter checks with illustrations.
68sections
452articles
ENManual language
- APPLICATION
- DESCRIPTION
- OPERATION
- PCM
- SENSORS & SWITCHES
- Shift Solenoids 1-2 & 2-3
- Pressure Control
- TCC Solenoid
- 3-2 Control Solenoid
- TCC PWM Solenoid
- SELF-DIAGNOSTICS
- TROUBLE SHOOTING
- CLUTCH & BAND APPLICATION
- ELECTRONIC SELF-DIAGNOSTICS
- RETRIEVING CODES WITHOUT SCAN TOOL - GASOLINE ENGINES
- RETRIEVING CODES WITH SCAN TOOL - GASOLINE ENGINES
- Preliminary Inspection
- Diagnostic Procedure
- Entering Or Exiting Diagnostic Mode
- TROUBLE CODE DEFINITIONS
- HARD OR INTERMITTENT TROUBLE CODE DETERMINATION (GASOLINE)
- CLEARING TROUBLE CODES
- Diesel
- Gasoline
- Diagnostic Charts
- Diagnostic Aids
- Circuit Description
- Set Condition
- Test Description
- CODE 15, CTS SIGNAL VOLTAGE HIGH (LOW TEMPERATURE INDICATED)
- CODE 22, THROTTLE POSITION SENSOR SIGNAL VOLTAGE LOW
- CODE 38, BRAKE SWITCH ERROR - 4.3L & 5.7L "B/D/F/Y" BODIES
- CODE 58, TRANS. TEMP. SENSOR HIGH - 3.4L "F" BODY, 4.3L & 5.7L "B", "D", "F" & "Y" BODIES
- CODE 59, TRANS. TEMPERATURE SENSOR LOW TEMPERATURE - 3.4L "F" BODY, 4.3L & 5.7L "B", "D", "F" & "Y" BODIES
- CODE 72, VEHICLE SPEED SENSOR LOSS - 5.7L "Y" BODY
- CODE 79, TRANSMISSION FLUID OVERTEMP - 3.4L "F" BODY, 4.3L & 5.7L "B", "D", "F" & "Y" BODIES
- CODE 96, TRANSMISSION VOLTAGE LOW - 3.4L "F" BODY
- CODE 14, COOLANT TEMPERATURE SENSOR SIGNAL VOLTAGE LOW
- CODE 15, COOLANT TEMPERATURE SENSOR SIGNAL VOLTAGE HIGH
- CODE 21, TPS SIGNAL VOLTAGE HIGH
- CODE 22, TPS SIGNAL VOLTAGE LOW
- CODE 59, TRANS. FLUID TEMP. LOW
- CODE 79, TRANS. FLUID TEMPERATURE HIGH
- CHART A-1, NO MIL (SERVICE ENGINE SOON LIGHT)
- CHART A-2, NO SCAN DATA, MIL (SES) ALWAYS ON OR WON'T FLASH
- DTC 15, ECT SENSOR CKT HIGH (LOW TEMPERATURE INDICATED)
- DTC 58, TRANS. FLUID TEMP. SENSOR CK LOW HIGH TEMPERATURE INDICATED)
- DTC 59, TRANS. FLUID TEMP. SENSOR CKT HIGH LOW TEMPERATURE INDICATED)
- DTC 72, VEHICLE SPEED SENSOR CIRCUIT LOSS (TRANS OUTPUT SPEED SIGNAL)
- DTC 75, SYSTEM VOLTAGE LOW
- DTC 79, TRANSMISSION FLUID OVERTEMP
- Poor Connection Or Damaged Harness
- Intermittent Test
- Shifted Sensor
- TP Sensor Scaling
- Circuiot Description
- COMPONENT & WIRING HARNESS RESISTANCE CHECK
- PRESSURE SWITCH ASSEMBLY
- TECHNICAL SERVICE BULLETINS (TSB)
- 1995 "C", "G" & "K" Series Trucks & Vans With 5.7L (VIN K) & 4L60-E (GM TSB No. 67-65-16 2/96)
- 1995 "L" & "M" Series W/ 4.3L RPO 35, VIN Prior To 255435 On Chevrolet & 559796 On GMC (GM TSB No. 57-71-1910/95)
- 1993-95 "C", "G", "K" & "T" 4WD Vehicles (ATRA TSB No. 343)
- Early, Late Or Erratic Shifts (All Models)
- 4WD-Low Diagnostic Check ("K" Series With Manually Or Electronically Shifted Transfer Case In High Position)
- 4WD-Low Diagnostic Check ("T" Series With PCM & Manually Shifted Transfer Case In High Position)
- 4WD-Low Diagnostic Check ("T" Series With VCM & Manually Shifted Transfer Case In High Position)
- 4WD-Low Diagnostic Check ("T" Series With Electronically Shifted Transfer Case In High Position)
- MODEL IDENTIFICATION
- TERMINOLOGY
- INTRODUCTION
- CONTROL UNIT
- Ground Circuits
- Power Circuits
- A/C ON SWITCH/SYSTEM TEST
- BRAKE SWITCH
- ENGINE COOLANT TEMPERATURE (ECT) SENSOR
- INTAKE AIR TEMPERATURE (IAT) SENSOR
- KNOCK SENSOR
- MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR
- OXYGEN SENSOR (O2S)
- OXYGEN SENSOR HEATING ELEMENT
- THROTTLE POSITION (TP) SENSOR
- TRANSMISSION RANGE SWITCH
- VEHICLE SPEED SENSOR (PM GENERATOR)
- A/C Relays
- Fuel Pump Relay
- SOLENOIDS
- Electronic Air Control (EAC) Solenoid
- EGR Control Solenoid
- Idle Air Control (IAC) Valve
- Torque Converter Clutch (TCC) Solenoid
- FUEL DELIVERY
- Fuel Pressure Regulator (Port Fuel Injection)
- Fuel Pressure Regulator (Central & Throttle Body Injection)
- Fuel Pump Oil Pressure Switch (Back-Up Circuit)
- Fuel Pump Relay By-Pass Procedure
- Fuel Injector(s)
- C-2, Port Fuel Injector Balance Test
- IGNITION SYSTEM
- C-4, Ignition Control Circuit
- C-5, Knock Sensor Circuit (Models Using External Spark Controller Module)
- C-5, Knock Sensor Circuit (Models Using Knock Sensor With Internal Spark Controller Module)
- System Test (Vacuum-Controlled Valve)
- Negative Backpressure EGR Valve
- Linear EGR Valve (Digital Valve)
- Vapor Canister Purge Valve ("P" Series & 4.3L CPI)
- Fuel Tank Pressure Control Valve ("C", "G", "K" & "M" Series -High-Altitude)
- Thermostatic Vacuum Switch
- Required Service
- Checking PCV Valve Function
- Damper Door - Wax Pellet Check
- MISCELLANEOUS ECM/PCM/VCM CONTROLS
- Converter Lock-Up Signal At Transmission
- Converter Lock-Up Signal From ECM/PCM/VCM
- Shift Light (Manual Transmission)
- A/C CLUTCH (C-10) & ELECTRIC COOLING FAN (C-12)
- A/C Clutch Relay
- COOLING FAN (C-12)
- Cooling Fan Relay
- Cooling Fan Motor
- DIAGNOSTIC CHARTS
- CHART C-10, A/C COMPRESSOR CLUTCH CIRCUIT DIAGNOSIS - 4.3L (VIN W & Z) S" & "T" SERIES A/T & 4.3L (VIN W) "T" SERIES M/T
- Diagnostic Aids
- CHART C-10, A/C COMPRESSOR CLUTCH CIRCUIT DIAGNOSIS 4.3L (VIN Z) "S" & "T" SERIES M/T (1 OF 2)
- CHART C-10, A/C COMPRESSOR CLUTCH CIRCUIT DIAGNOSIS 4.3L (VIN Z) "S" & "T" SERIES M/T (2 OF 2)
- A/C REQUEST SIGNAL CIRCUIT DIAGNOSIS - 4.3L VIN W & Z ("C", "G", "K", "L", "M" & "P" SERIES)
- INTRODUCTION
- Hard Failures
- Intermittent Failures
- DIAGNOSTIC PROCEDURE
- READING TROUBLE CODES
- TROUBLE CODE DEFINITION
- HARD OR INTERMITTENT TROUBLE CODE DETERMINATION
- CLEARING TROUBLE CODES
- PCM LOCATION
- Diagnostic Aids
- Field Service Mode Check (If Available)
- SPECIAL TOOLS (DIAGNOSTIC)
- SCAN TESTER USAGE
- SCAN DATA
- ECM/PCM CODE CHARTS
- CODE 11, MALFUNCTION INDICATOR LIGHT
- CODE 13, LEFT HEATED OXYGEN SENSOR CIRCUIT OPEN
- CODE 14, COOLANT TEMP SENS SGNL VLTGE LOW (HI TEMP INDICATED)
- CODE 15, COOLANT TEMP SENSOR SIGNAL VOLTAGE LOW
- CODE 16, OPTI-SPARK IGNITION SYSTEM LOW RESOLUTION PULSE
- CODE 18, INJECTOR CIRCUIT
- CODE 21, THROTTLE POSITION SENSOR SIGNAL VOLTAGE HIGH
- CODE 22, THROTTLE POSITION SENSOR SIGNAL VOLTAGE LOW
- CODE 23, IAT SENSOR SIGNAL VOLTAGE HIGH (LOW TEMP INDICATED)
- CODE 24, VEHICLE SPEED SENSOR
- CODE 25, IAT SENSOR SIGNAL VOLTAGE LOW (HIGH TEMP INDICATED)
- CODE 26, CANISTER PURGE SOLENOID
- CODE 27, EGR SOL VALVE
- CODE 28, TRANS. RANGE PRESSURE SWITCH
- CODE 29, SECONDARY AIR INJECTION
- CODE 32, EGR SYSTEM ERROR
- CODE 33, MAP SENSOR SIGNAL VOLTAGE HIGH
- CODE 34, MAP SENSOR SIGNAL VOLTAGE LOW
- CODE 36, OPTI-SPARK HIGH RESOLUTION PULSE
- CODE 37, TCC BRAKE SWITCH ERROR
- CODE 38, BRAKE SWITCH ERROR
- CODE 41, OPTI-SPARK IGNITION SYSTEM OPEN OR SHORTED EST CKT
- CODE 42, IC CIRCUIT GROUNDED
- CODE 43, KNOCK SENSOR CIRCUIT (DUAL SENSORS)
- CODE 44, LEFT HEATED OXYGEN SENSOR LEAN EXHAUST INDICATION
- O2 Sensor Wire
- Fuel Contamination
- Fuel Pressure
- Exhaust Leaks
- Misfire Or Stall
- CODE 45, LEFT HEATED OXYGEN SENSOR RICH EXHAUST INDICATION
- Fuel Pressure High
- Ignition Ground
- Evaporative Fuel Canister
- MAP Sensor
- TPS
- O2 Sensor Contamination
- EGR Problem
- CODE 46, PASS-KEY CIRCUIT
- Pass-Key Diagnosis
- CODE 47, KNOCK SENSOR MODULE
- CODE 48, MASS AIRFLOW SENSOR
- CODE 50, SYSTEM VOLTAGE LOW
- CODE 52, FAULTY CAL-PAK
- CODE 53, SYSTEM VOLTAGE HIGH
- CODE 55, PCM ERROR
- CODE 55, FUEL LEAN MONITOR
- CODE 58, TRANS TEMPERATURE SENSOR HIGH TEMPERATURE
- CODE 59, TRANS. TEMPERATURE SENSOR LOW TEMPERATURE
- CODE 63, RIGHT HEATED OXYGEN SENSOR CIRCUIT OPEN
- CODE 64, RIGHT HEATED OXYGEN SENSOR LEAN EXHAUST INDICATION
- CODE 65, RIGHT HEATED OXYGEN SENSOR RICH EXHAUST INDICATION
- CODE 66, A/C PRESSURE SENSOR
- CODE 67, A/C PRESSURE SENSOR
- CODE 68, A/C RELAY CIRCUIT SHORTED
- CODE 69, A/C COMPRESSOR RELAY
- CODE 70, A/C COMPRESSOR RELAY DRIVER
- CODE 72, VEHICLE SPEED SENSOR LOSS
- CODE 73, PRESSURE CONTROL SOLENOID
- CODE 75, TRANSMISSION VOLTAGE LOW
- CODE 77, PRIMARY COOLING FAN DRIVER
- CODE 78, SECONDARY COOLING FAN DRIVER
- CODE 79, TRANSMISSION FLUID OVERTEMP
- CODE 81, 2-3 SHIFT SOLENOID
- CODE 82, 1-2 SHIFT SOLENOID
- CODE 83, TCC PWM SOLENOID - A/T
- CODE 84, 3-2 CONTROL SOLENOID - WITH A/T
- CODE 85, TCC STUCK ON
- CODE 90, TCC SOLENOID CIRCUIT
- CODE 95, CHANGE OIL LIGHT
- CODE 96, LOW OIL LIGHT
- CODE 97, VSS OUTPUT CIRCUIT
- SUMMARY
- INTRODUCTION
- SELF-DIAGNOSTIC SYSTEM
- HARD FAILURES
- INTERMITTENT FAILURES
- DIAGNOSTIC PROCEDURE
- READING TROUBLE CODES
- TROUBLE CODE DEFINITIONS
- HARD OR INTERMITTENT TROUBLE CODE DETERMINATION
- CLEARING TROUBLE CODES
- PCM LOCATION
- Diagnostic Aids
- Field Service Mode Check (If Available)
- SPECIAL TOOLS (DIAGNOSTIC)
- SCAN TESTER USAGE
- SCAN DATA
- ECM/PCM CODE CHARTS
- CODE 11, MALFUNCTION INDICATOR LIGHT
- CODE 13, LEFT HEATED OXYGEN SENSOR CIRCUIT OPEN
- CODE 14, COOLANT TEMP SENS SGNL VLTGE LOW (HI TEMP INDICATED)
- CODE 15, COOLANT TEMP SENSOR SIGNAL VOLTAGE LOW
- CODE 16, OPTI-SPARK IGNITION SYSTEM LOW RESOLUTION PULSE
- CODE 18, INJECTOR CIRCUIT
- CODE 21, THROTTLE POSITION SENSOR SIGNAL VOLTAGE HIGH
- CODE 22, THROTTLE POSITION SENSOR SIGNAL VOLTAGE LOW
- CODE 23, IAT SENSOR SIGNAL VOLTAGE HIGH (LOW TEMP INDICATED)
- CODE 24, VEHICLE SPEED SENSOR
- CODE 25, IAT SENSOR SIGNAL VOLTAGE LOW (HIGH TEMP INDICATED)
- CODE 26, CANISTER PURGE SOLENOID
- CODE 27, EGR SOL VALVE
- CODE 28, TRANS. RANGE PRESSURE SWITCH
- CODE 29, SECONDARY AIR INJECTION
- CODE 32, EGR SYSTEM ERROR
- CODE 33, MAP SENSOR SIGNAL VOLTAGE HIGH
- CODE 34, MAP SENSOR SIGNAL VOLTAGE LOW
- CODE 36, OPTI-SPARK HIGH RESOLUTION PULSE
- CODE 37, TCC BRAKE SWITCH ERROR
- CODE 38, BRAKE SWITCH ERROR
- CODE 41, OPTI-SPARK IGNITION SYSTEM OPEN OR SHORTED EST CKT
- CODE 42, IC CIRCUIT GROUNDED
- CODE 43, KNOCK SENSOR CIRCUIT (DUAL SENSORS)
- CODE 44, LEFT HEATED OXYGEN SENSOR LEAN EXHAUST INDICATION
- O2 Sensor Wire
- Fuel Contamination
- Fuel Pressure
- Exhaust Leaks
- Misfire Or Stall
- CODE 45, LEFT HEATED OXYGEN SENSOR RICH EXHAUST INDICATION
- Fuel Pressure High
- Ignition Ground
- Evaporative Fuel Canister
- MAP Sensor
- TPS
- O2 Sensor Contamination
- EGR Problem
- CODE 46, PASS-KEY CIRCUIT
- Pass-Key Diagnosis
- CODE 47, KNOCK SENSOR MODULE
- CODE 48, MASS AIRFLOW SENSOR
- CODE 50, SYSTEM VOLTAGE LOW
- CODE 52, FAULTY CAL-PAK
- CODE 53, SYSTEM VOLTAGE HIGH
- CODE 55, PCM ERROR
- CODE 55, FUEL LEAN MONITOR
- CODE 58, TRANS TEMPERATURE SENSOR HIGH TEMPERATURE
- CODE 59, TRANS. TEMPERATURE SENSOR LOW TEMPERATURE
- CODE 63, RIGHT HEATED OXYGEN SENSOR CIRCUIT OPEN
- CODE 64, RIGHT HEATED OXYGEN SENSOR LEAN EXHAUST INDICATION
- CODE 65, RIGHT HEATED OXYGEN SENSOR RICH EXHAUST INDICATION
- CODE 66, A/C PRESSURE SENSOR
- CODE 67, A/C PRESSURE SENSOR
- CODE 68, A/C RELAY CIRCUIT SHORTED
- CODE 69, A/C COMPRESSOR RELAY
- CODE 70, A/C COMPRESSOR RELAY DRIVER
- CODE 72, VEHICLE SPEED SENSOR LOSS
- CODE 73, PRESSURE CONTROL SOLENOID
- CODE 75, TRANSMISSION VOLTAGE LOW
- CODE 77, PRIMARY COOLING FAN DRIVER
- CODE 78, SECONDARY COOLING FAN DRIVER
- CODE 79, TRANSMISSION FLUID OVERTEMP
- CODE 81, 2-3 SHIFT SOLENOID
- CODE 82, 1-2 SHIFT SOLENOID
- CODE 83, TCC PWM SOLENOID - A/T
- CODE 84, 3-2 CONTROL SOLENOID - WITH A/T
- CODE 85, TCC STUCK ON
- CODE 90, TCC SOLENOID CIRCUIT
- CODE 95, CHANGE OIL LIGHT
- CODE 96, LOW OIL LIGHT
- CODE 97, VSS OUTPUT CIRCUIT
- SUMMARY