Measure voltage (backprobe) between ground and PCM 26-pin harness connector "A" terminal No. 14 (White wire) with ignition off, then with engine running. Both readings should be 10-14 volts. If readings are not as specified, repair open in White wire between underhood relay/fuse block and PCM harness connector "A" terminal No. 14. If readings are as specified, check for poor connection at PCM. If connections are okay, replace PCM.
Home/Suzuki/Esteem/Suzuki Esteem I (1995-2004)/Repair manual/Testing & Diagnostics/DTC P1510: PCM BACK-UP POWER SUPPLY MALFUNCTION
Contents
Wiring diagrams Section: Testing & Diagnostics- Engine Controls - Basic Diagnostic Procedures: Diagnosis
- Engine Controls - Basic Diagnostic Procedures: Other
- Engine Controls - Self-Diagnostics - Introduction: Overview
- Engine Controls - Self-Diagnostics - Introduction: Diagnosis
- Engine Controls - Self-Diagnostics - Introduction: Maintenance
- Engine Controls - Self-Diagnostics - Introduction: Component Locations
- Engine Controls - Self-Diagnostics - Introduction: Other
- Engine Controls - Self-Diagnostics: Overview
- Engine Controls - Self-Diagnostics: Other
- DTC P0106: MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR PERFORMANCE
- DTC P0107: MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR CIRCUIT LOW INPUT
- DTC P0108: MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR CIRCUIT HIGH INPUT
- DTC P0111: INTAKE AIR TEMPERATURE (IAT) SENSOR CIRCUIT RANGE/PERFORMANCE PROBLEM
- DTC P0112: INTAKE AIR TEMPERATURE (IAT) CIRCUIT LOW INPUT
- DTC P0113: INTAKE AIR TEMPERATURE (IAT) CIRCUIT HIGH INPUT
- DTC P0116: ENGINE COOLANT TEMPERATURE (ECT) CIRCUIT RANGE/PERFORMANCE PROBLEM
- DTC P0117: ENGINE COOLANT TEMPERATURE (ECT) CIRCUIT LOW INPUT
- DTC P0118: ENGINE COOLANT TEMPERATURE (ECT) CIRCUIT HIGH INPUT
- DTC P0121: THROTTLE POSITION (TP) CIRCUIT RANGE/PERFORMANCE PROBLEM
- DTC P0122: THROTTLE POSITION (TP) CIRCUIT LOW INPUT
- DTC P0123: THROTTLE POSITION (TP) CIRCUIT HIGH INPUT
- DTC P0125: INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP FUEL CONTROL
- DTC P0131: HEATED OXYGEN SENSOR (HO2S) NO. 1 CIRCUIT LOW INPUT OR DTC P0132: HEATED OXYGEN SENSOR (HO2S) NO. 1 CIRCUIT HIGH INPUT
- DTC P0133: HEATED OXYGEN SENSOR (HO2S) NO. 1 SLOW RESPONSE
- DTC P0134: HEATED OXYGEN SENSOR (HO2S) NO. 1 CIRCUIT/NO ACTIVITY DETECTED
- DTC P0135: HEATED OXYGEN SENSOR (HO2S) NO. 1 HEATER CIRCUIT MALFUNCTION
- DTC P0136: HEATED OXYGEN SENSOR (HO2S) NO. 2 CIRCUIT MALFUNCTION
- DTC P0141: HEATED OXYGEN SENSOR (HO2S) NO. 2 HEATER CIRCUIT MALFUNCTION
- DTC P0171: FUEL SYSTEM LEAN OR P0172: FUEL SYSTEM RICH
- DTC P0300: RANDOM MISFIRE DETECTED, OR P0301-P0304 CYLINDERS NO. 1-4 MISFIRE DETECTED
- DTC P0335: CRANKSHAFT POSITION (CKP) SENSOR CIRCUIT MALFUNCTION
- DTC P0340: CAMSHAFT POSITION (CMP) SENSOR CIRCUIT MALFUNCTION (ESTEEM)
- DTC P0400: EXHAUST GAS RECIRCULATION (EGR) FLOW MALFUNCTION
- DTC P0420: THREE-WAY CATALYST (TWC) EFFICIENCY LOW
- DTC P0440: EVAPORATIVE (EVAP) EMISSION CONTROL SYSTEM MALFUNCTION, OR P0455: EVAPORATIVE (EVAP) EMISSION CONTROL SYSTEM GROSS LEAK
- DTC P0450: EVAPORATIVE (EVAP) EMISSION CONTROL SYSTEM PRESSURE SENSOR MALFUNCTION
- DTC P0451: EVAPORATIVE (EVAP) EMISSION CONTROL SYSTEM PRESSURE SENSOR PERFORMANCE
- DTC P0461: FUEL LEVEL SENSOR (GAUGE) CIRCUIT PERFORMANCE PROBLEM
- DTC P0463: FUEL LEVEL SENSOR (GAUGE) CIRCUIT HIGH INPUT
- DTC P0480: RADIATOR COOLING FAN CONTROL CIRCUIT MALFUNCTION
- DTC P0481: A/C COOLING FAN CONTROL CIRCUIT MALFUNCTION (ESTEEM)
- DTC P0500: VEHICLE SPEED SENSOR (VSS) MALFUNCTION (ESTEEM)
- DTC P0505: IDLE AIR CONTROL (IAC) SYSTEM MALFUNCTION
- DTC P0506: IDLE AIR CONTROL (IAC) RPM LESS THAN EXPECTED, OR P0507: IDLE AIR CONTROL (IAC) RPM MORE THAN EXPECTED
- DTC P0601: INTERNAL CONTROL MODULE MEMORY CHECK SUM ERROR OR P0603: INTERNAL CONTROL MODULE KEEP ALIVE MEMORY ERROR
- DTC P1410: FUEL TANK PRESSURE CONTROL SYSTEM MALFUNCTION
- DTC P1450: BAROMETRIC PRESSURE SENSOR LOW/HIGH INPUT
- DTC P1451: BAROMETRIC PRESSURE SENSOR PERFORMANCE PROBLEM
- DTC P1500: ENGINE START SIGNAL CIRCUIT MALFUNCTION
- DTC P1510: PCM BACK-UP POWER SUPPLY MALFUNCTION
- DTC P1530: IGNITION TIMING ADJUSTMENT SWITCH CIRCUIT MALFUNCTION
- DTC P1600: SERIAL COMMUNICATION PROBLEM BETWEEN PCM & TCM
- Engine Controls - Trouble Shooting - No Codes: Diagnosis
- Engine Controls - Trouble Shooting - No Codes: Other
- Abbreviations
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- Wiring Diagrams - Engine Performance