Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2004 Volvo V40 BaseFACTORY OEM SERVICE PROCEDURE
Engine Control Module (ECM) DTCS - B4204T4
ENGINE CONTROL MODULE (ECM) - DTC INDEX
| OBD-II Code | DTC | Description |
|---|---|---|
| P0108 | ECM-0C | Boost pressure sensor. Signal too high. Intermittent fault |
| P0108 | ECM-0C | Boost pressure sensor. Signal too high. Permanent fault |
| P0107 | ECM-0C | Boost pressure sensor. Signal too low. Intermittent fault |
| P0107 | ECM-0C | Boost pressure sensor. Signal too low. Permanent fault |
| P0107 | ECM-0D | Boost pressure sensor. Signal too high. Intermittent fault |
| P0107 | ECM-0D | Boost pressure sensor. Signal too high. Permanent fault |
| P0108 | ECM-0D | Boost pressure sensor. Signal too low. Intermittent fault |
| P0108 | ECM-0D | Boost pressure sensor. Signal too low. Permanent fault |
| P0113 | ECM-0F | Intake air temperature (IAT) sensor. Signal too high. Intermittent fault |
| P0113 | ECM-0F | Intake air temperature (IAT) sensor. Signal too high. Permanent fault |
| P0112 | ECM-0F | Intake air temperature (IAT) sensor. Signal too low. Intermittent fault |
| P0112 | ECM-0F | Intake air temperature (IAT) sensor. Signal too low. Permanent fault |
| P0114 | ECM-10 | Intake air temperature (IAT) sensor. Faulty signal. Intermittent fault |
| P0114 | ECM-10 | Intake air temperature (IAT) sensor. Faulty signal. Permanent fault |
| P0103 | ECM-13 | Mass air flow (MAF) sensor signal. Signal too high. Intermittent fault |
| P0103 | ECM-13 | Mass air flow (MAF) sensor signal. Signal too high. Permanent fault |
| P0102 | ECM-13 | Mass air flow (MAF) sensor signal. Signal too low. Intermittent fault |
| P0102 | ECM-13 | Mass air flow (MAF) sensor signal. Signal too low. Permanent fault |
| P0101 | ECM-14 | Mass air flow (MAF) sensor. Faulty signal. Intermittent fault |
| P0101 | ECM-14 | Mass air flow (MAF) sensor. Faulty signal. Permanent fault |
| P0118 | ECM-15 | Engine coolant temperature (ECT) sensor signal. Signal too high. Intermittent fault |
| P0118 | ECM-15 | Engine coolant temperature (ECT) sensor signal. Signal too high. Permanent fault |
| P0117 | ECM-15 | Engine coolant temperature (ECT) sensor signal. Signal too low. Intermittent fault |
| P0117 | ECM-15 | Engine coolant temperature (ECT) sensor signal. Signal too low. Permanent fault |
| P0130 | ECM-16 | Front heated oxygen sensor signal. Signal missing. Intermittent fault |
| P0130 | ECM-16 | Front heated oxygen sensor signal. Signal missing. Permanent fault |
| P0132 | ECM-16 | Front heated oxygen sensor signal. Signal too high. Intermittent fault |
| P0132 | ECM-16 | Front heated oxygen sensor signal. Signal too high. Permanent fault |
| P0131 | ECM-16 | Front heated oxygen sensor signal. Signal too low. Intermittent fault |
| P0131 | ECM-16 | Front heated oxygen sensor signal. Signal too low. Permanent fault |
| P0030 P0031 P0135 | ECM-18 | Front heated oxygen sensor (HO2S), preheating. Faulty signal. Intermittent fault |
| P0030 P0031 P0135 | ECM-18 | Front heated oxygen sensor (HO2S), preheating. Faulty signal. Permanent fault |
| P0030 | ECM-18 | Front heated oxygen sensor (HO2S), preheating. Signal missing. Intermittent fault |
| P0030 | ECM-18 | Front heated oxygen sensor (HO2S), preheating. Signal missing. Permanent fault |
| P0032 | ECM-18 | Front heated oxygen sensor (HO2S), preheating. Signal too high. Intermittent fault |
| P0032 | ECM-18 | Front heated oxygen sensor (HO2S), preheating. Signal too high. Permanent fault |
| P0031 | ECM-18 | Front heated oxygen sensor (HO2S), preheating. Signal too low. Intermittent fault |
| P0031 | ECM-18 | Front heated oxygen sensor (HO2S), preheating. Signal too low. Permanent fault |
| P0140 | ECM-1A | Rear heated oxygen sensor (HO2S) signal. Signal missing. Permanent fault |
| P0140 | ECM-1A | Signal, rear heated oxygen sensor (HO2S). Signal missing. Intermittent fault |
| P0140 | ECM-1A | Signal, rear heated oxygen sensor (HO2S). Signal missing. Permanent fault |
| P0138 | ECM-1A | Signal, rear heated oxygen sensor (HO2S). Signal too high. Intermittent fault |
| P0138 | ECM-1A | Signal, rear heated oxygen sensor (HO2S). Signal too high. Permanent fault |
| P0140 | ECM-1A | Signal, rear heated oxygen sensor (HO2S). Signal too low. Intermittent fault |
| P0140 | ECM-1A | Signal, rear heated oxygen sensor (HO2S). Signal too low. Permanent fault |
| P0036 P0037 P0141 | ECM-1C | Rear heated oxygen sensor (HO2S), preheating. Faulty signal. Intermittent fault |
| P0036 P0037 P0141 | ECM-1C | Rear heated oxygen sensor (HO2S), preheating. Faulty signal. Permanent fault |
| P0036 | ECM-1C | Rear heated oxygen sensor (HO2S), preheating. Signal missing. Intermittent fault |
| P0036 | ECM-1C | Rear heated oxygen sensor (HO2S), preheating. Signal missing. Permanent fault |
| P0038 | ECM-1C | Rear heated oxygen sensor (HO2S), preheating. Signal too high. Intermittent fault |
| P0038 | ECM-1C | Rear heated oxygen sensor (HO2S), preheating. Signal too high. Permanent fault |
| P0037 | ECM-1C | Rear heated oxygen sensor (HO2S), preheating. Signal too low. Intermittent fault |
| P0037 | ECM-1C | Rear heated oxygen sensor (HO2S), preheating. Signal too low. Permanent fault |
| P0262 | ECM-1E | Injector 1. Signal too high. Intermittent fault |
| P0262 | ECM-1E | Injector 1. Signal too high. Permanent fault |
| P0261 | ECM-1E | Injector 1. Signal too low. Intermittent fault |
| P0261 | ECM-1E | Injector 1. Signal too low. Permanent fault |
| P0201 | ECM-1E | Injector 1. Signal missing. Intermittent fault |
| P0201 | ECM-1E | Injector 1. Signal missing. Permanent fault |
| P0202 | ECM-1F | Injector 2. Signal missing. Intermittent fault |
| P0202 | ECM-1F | Injector 2. Signal missing. Permanent fault |
| P0265 | ECM-1F | Injector 2. Signal too high. Permanent fault |
| P0264 | ECM-1F | Injector 2. Signal too low. Intermittent fault |
| P0264 | ECM-1F | Injector 2. Signal too low. Permanent fault |
| P0265 | ECM-1F | Injector 2. Signal too high. Intermittent fault |
| P0268 | ECM-20 | Injector 3. Signal too high. Intermittent fault |
| P0268 | ECM-20 | Injector 3. Signal too high. Permanent fault |
| P0267 | ECM-20 | Injector 3. Signal too low. Intermittent fault |
| P0267 | ECM-20 | Injector 3. Signal too low. Permanent fault |
| P0203 | ECM-20 | Injector 3. Signal missing. Intermittent fault |
| P0203 | ECM-20 | Injector 3. Signal missing. Permanent fault |
| P0204 | ECM-21 | Injector 4. Signal missing. Intermittent fault |
| P0270 | ECM-21 | Injector 4. Signal too low. Intermittent fault |
| P0204 | ECM-21 | Injector 4. Signal missing. Permanent fault |
| P0270 | ECM-21 | Injector 4. Signal to low. Permanent fault |
| P0271 | ECM-21 | Injector 4. Signal too high. Intermittent fault |
| P0271 | ECM-21 | Injector 4. Signal too high. Permanent fault |
| P0232 | ECM-24 | System relay control signal. Signal too high. Intermittent fault |
| P0232 | ECM-24 | System relay control signal. Signal too high. Permanent fault |
| P0231 | ECM-24 | System relay control signal. Signal too low. Intermittent fault |
| P0231 | ECM-24 | System relay control signal. Signal too low. Permanent fault |
| P0172 | ECM-25 | Long-term fuel trim. Lean. Intermittent fault |
| P0172 | ECM-25 | Long-term fuel trim. Lean. Permanent fault |
| P0171 | ECM-25 | Long-term fuel trim. Rich. Intermittent fault |
| P0171 | ECM-25 | Long-term fuel trim. Rich. Permanent fault |
| P0133 | ECM-28 | Front heated oxygen sensor (HO2S) short-term fuel trim. Faulty signal. Intermittent fault |
| P0133 | ECM-28 | Front heated oxygen sensor (HO2S) short-term fuel trim. Faulty signal. Permanent fault |
| P0139 | ECM-29 | Rear heated oxygen sensor (HO2S). Faulty signal. Intermittent fault |
| P0139 | ECM-29 | Rear heated oxygen sensor (HO2S). Faulty signal. Permanent fault |
| ECM-2A | Rear heated oxygen sensor (HO2S). Faulty signal | |
| P0243 P0245 P0246 | ECM-2D | Turbocharger (TC) control valve signal |
| P0243 | ECM-2D | Turbocharger (TC) control valve signal. Signal missing. Intermittent fault |
| P0243 | ECM-2D | Turbocharger (TC) control valve signal. Signal missing. Permanent fault |
| P0246 | ECM-2D | Turbocharger (TC) control valve signal. Signal too high. Intermittent fault |
| P0246 | ECM-2D | Turbocharger (TC) control valve signal. Signal too high. Permanent fault |
| P0245 | ECM-2D | Turbocharger (TC) control valve signal. Signal too low. Intermittent fault |
| P9245 | ECM-2D | Turbocharger (TC) control valve signal. Signal too low. Permanent fault |
| P1236 | ECM-2E | Boost pressure. Signal too high. Intermittent fault |
| P1236 | ECM-2E | Boost pressure. Signal too high. Permanent fault |
| P0234 | ECM-2E | Boost pressure. Signal too low. Intermittent fault |
| P0234 | ECM-2E | Boost pressure. Signal too low. Permanent fault |
| P0340 P0341 | ECM-32 | Camshaft position (CMP) sensor signal. Faulty signal. Intermittent fault |
| P0340 P0341 | ECM-32 | Camshaft position (CMP) sensor signal. Faulty signal. Permanent fault |
| P0340 | ECM-32 | Camshaft position (CMP) sensor signal. Signal missing. Intermittent fault |
| P0340 | ECM-32 | Camshaft position (CMP) sensor signal. Signal missing. Permanent fault |
| P0351 | ECM-38 | Ignition coil 1. Signal too high. Intermittent fault |
| P0351 | ECM-38 | Ignition coil 1. Signal too high. Permanent fault |
| P0351 | ECM-38 | Ignition coil 1. Signal too low. Intermittent fault |
| P0351 | ECM-38 | Ignition coil 1. Signal too low. Permanent fault |
| P0352 | ECM-3A | Ignition coil 2. Signal too high. Intermittent fault |
| P0352 | ECM-3A | Ignition coil 2. Signal too high. Permanent fault |
| P0352 | ECM-3A | Ignition coil 2. Signal too low. Intermittent fault |
| P0352 | ECM-3A | Ignition coil 2. Signal too low. Permanent fault |
| P0326 | ECM-41 | Knock sensor (KS). Faulty signal. Intermittent fault |
| P0326 | ECM-41 | Knock sensor (KS). Faulty signal. Permanent fault |
| P0324 | ECM-43 | Control module. Internal fault. Intermittent fault |
| P0324 | ECM-43 | Control module. Internal fault. Permanent fault |
| P0300 | ECM-44 | Misfire, Emission level. Faulty signal. Intermittent fault |
| P0300 | ECM-44 | Misfire, Emission level. Faulty signal. Permanent fault |
| P0300 | ECM-45 | Misfire, Emission level. Faulty signal. Intermittent fault |
| P0300 | ECM-45 | Misfire, Emission level. Faulty signal. Permanent fault |
| P0300 | ECM-4D | Misfire damages the catalytic converter. Faulty signal. Permanent fault |
| P0300 | ECM-4D | Misfiring damaging to the three-way catalytic converter (TWC). Faulty signal. Intermittent fault |
| P1336 | ECM-53 | Engine speed (RPM) sensor. Sporadic. Intermittent fault |
| P1336 | ECM-53 | Engine speed (RPM) sensor. Sporadic. Permanent fault |
| P0420 | ECM-5A | Three-way catalytic converter (TWC) efficiency. Faulty signal. Permanent fault |
| P0444 | ECM-5C | Canister purge (CP) valve signal. Signal missing. Intermittent fault |
| P0443 | ECM-5C | Canister purge (CP) valve signal. Signal too high. Intermittent fault |
| P0443 | ECM-5C | Canister purge (CP) valve signal. Signal too high. Permanent fault |
| P0445 | ECM-5C | Canister purge (CP) valve signal. Signal too low. Intermittent fault |
| P0445 | ECM-5C | Canister purge (CP) valve signal. Signal too low. Permanent fault |
| P0444 | ECM-5C | Canister purge (CP) valve signal. Signal missing. Permanent fault |
| P0013 | ECM-5D | Camshaft reset valve. Signal missing. Intermittent fault |
| P0013 | ECM-5D | Camshaft reset valve. Signal missing. Permanent fault |
| P0013 | ECM-5D | Camshaft reset valve. Signal too high. Intermittent fault |
| P0013 | ECM-5D | Camshaft reset valve. Signal too high. Permanent fault |
| P0013 | ECM-5D | Camshaft reset valve. Signal too low. Intermittent fault |
| P0013 | ECM-5D | Camshaft reset valve. Signal too low. Permanent fault |
| P0014 | ECM-5E | Camshaft reset valve. Faulty signal. Permanent fault |
| P0014 | ECM-5E | Camshaft reset valve. Faulty signal. Intermittent fault |
| P0014 | ECM-5F | Camshaft reset valve. Faulty signal. Intermittent fault |
| P0014 | ECM-5F | Camshaft reset valve. Faulty signal. Permanent fault |
| P0014 | ECM-60 | Camshaft reset valve. Faulty signal. Intermittent fault |
| P0014 | ECM-60 | Camshaft reset valve. Faulty signal. Permanent fault |
| P0015 | ECM-61 | Camshaft reset valve. Faulty signal. Intermittent fault |
| P0015 | ECM-61 | Camshaft reset valve. Faulty signal. Permanent fault |
| P1014 | ECM-62 | Camshaft reset valve. Faulty signal. Intermittent fault |
| P1014 | ECM-62 | Camshaft reset valve. Faulty signal. Permanent fault |
| P1449 | ECM-65 | Leak diagnostic |
| P1449 | ECM-65 | Leak diagnostic. Faulty signal. Intermittent fault |
| P1449 | ECM-65 | Leak diagnostic. Faulty signal. Permanent fault |
| P1449 | ECM-65 | Leak diagnostic. Signal too high. Intermittent fault |
| P1449 | ECM-65 | Leak diagnostic. Signal too high. Permanent fault |
| P1449 | ECM-65 | Leak diagnostic. Signal too low. Permanent fault |
| P1440 | ECM-66 | Leak diagnostic. Signal too low. Intermittent fault |
| P1440 | ECM-66 | Leak diagnostic. Signal too low. Permanent fault |
| P0455 | ECM-68 | Leak diagnostic. Fuel tank filler cap missing. Intermittent fault |
| P0455 | ECM-68 | Leak diagnostic. Fuel tank filler cap missing. Permanent fault |
| P0442 P0455 P0456 | ECM-68 | Leak diagnostic. Major leak. Permanent fault |
| P0442 P0455 P0456 | ECM-68 | Leak diagnostic. Major leak. Permanent fault |
| P0456 | ECM-68 | Leak diagnostic. Minor leak. Intermittent fault |
| P0442 P0455 P0456 | ECM-68 | Leak diagnostic. Qualifier not recognized. Intermittent fault |
| P0442 P0455 P0456 | ECM-68 | Leak diagnostic. Qualifier not recognized. Permanent fault |
| P0442 P0455 P0456 | ECM-68 | Leak diagnostic. Small leak. Permanent fault |
| P0441 | ECM-6A | Leak diagnostic. Faulty signal. Intermittent fault |
| P0441 | ECM-6A | Leak diagnostic. Faulty signal. Permanent fault |
| P0533 | ECM-6B | Air conditioning (A/C) pressure sensor. Signal too high. Intermittent fault |
| P0533 | ECM-6B | Air conditioning (A/C) pressure sensor. Signal too high. Permanent fault |
| P0532 | ECM-6B | Air conditioning (A/C) pressure sensor. Signal too low. Intermittent fault |
| P0532 | ECM-6B | Air conditioning (A/C) pressure sensor. Signal too low. Permanent fault |
| P0500 | ECM-6F | Speedometer signal. Faulty signal. Intermittent fault |
| P0500 | ECM-6F | Speedometer signal. Faulty signal. Permanent fault |
| P1600 | ECM-70 | DSA signal cable. Signal missing. Intermittent fault |
| P1600 | ECM-70 | DSA signal cable. Signal missing. Permanent fault |
| P1600 | ECM-70 | DSA signal cable. Signal too high. Intermittent fault |
| P1600 | ECM-70 | DSA signal cable. Signal too high. Permanent fault |
| P1600 | ECM-70 | DSA signal cable. Signal too low. Intermittent fault |
| P1600 | ECM-70 | DSA signal cable. Signal too low. Permanent fault |
| P0123 | ECM-73 | Throttle position (TP) sensor signal. Signal too high. Intermittent fault |
| P0123 | ECM-73 | Throttle position (TP) sensor signal. Signal too high. Permanent fault |
| P0122 | ECM-73 | Throttle position (TP) sensor signal. Signal too low. Intermittent fault |
| P0122 | ECM-73 | Throttle position (TP) sensor signal. Signal too low. Permanent fault |
| P0121 | ECM-74 | Throttle position (TP) sensor signal. Faulty signal. Intermittent fault |
| P0121 | ECM-74 | Throttle position (TP) sensor signal. Faulty signal. Permanent fault |
| P0700 | ECM-76 | Diagnostic trouble code (DTC) in the automatic transmission control module (TCM) |
| P0335 P0336 | ECM-78 | Engine speed (RPM) sensor. Faulty signal. Intermittent fault |
| P0335 | ECM-78 | Engine speed (RPM) sensor. Signal missing. Intermittent fault |
| P0335 | ECM-78 | Engine speed (RPM) sensor. Signal missing. Permanent fault |
| P0335 P0336 | ECM-78 | Engine speed (RPM) sensor. Faulty signal. Permanent fault |
| P0647 | ECM-7D | Air conditioning (A/C) relay signal. Signal too high. Intermittent fault |
| P0647 | ECM-7D | Air conditioning (A/C) relay signal. Signal too high. Permanent fault |
| P0646 | ECM-7D | Air conditioning (A/C) relay signal. Signal too low. Intermittent fault |
| P0646 | ECM-7D | Air conditioning (A/C) relay signal. Signal too low. Permanent fault |
| P0650 | ECM-7F | Malfunction indicator lamp. Signal missing. Intermittent fault |
| P0650 | ECM-7F | Malfunction indicator lamp. Signal missing. Permanent fault |
| P0650 | ECM-7F | Malfunction indicator lamp. Signal too high. Intermittent fault |
| P0650 | ECM-7F | Malfunction indicator lamp. Signal too high. Permanent fault |
| P0650 | ECM-7F | Malfunction indicator lamp. Signal too low. Intermittent fault |
| P0650 | ECM-7F | Malfunction indicator lamp. Signal too low. Permanent fault |
| P1482 | ECM-82 Air | conditioning (A/C) condenser fan. Signal too high. Intermittent fault |
| P1482 | ECM-82 Air | conditioning (A/C) condenser fan. Signal too high. Permanent fault |
| P1482 | ECM-82 Air | conditioning (A/C) condenser fan. Signal too low. Intermittent fault |
| P1482 | ECM-82 Air | conditioning (A/C) condenser fan. Signal too low. Permanent fault |
| P0480 | ECM-85 | Engine cooling fan (FC) low-speed. Signal too high. Intermittent fault |
| P0480 | ECM-85 | Engine cooling fan (FC) low-speed. Signal too high. Permanent fault |
| P0480 | ECM-85 | Engine cooling fan (FC) low-speed. Signal too low. Intermittent fault |
| P0480 | ECM-85 | Engine cooling fan (FC) low-speed. Signal too low. Permanent fault |
| P0481 | ECM-87 | Engine cooling fan (FC) high-speed. Signal too high. Intermittent fault |
| P0481 | ECM-87 | Engine cooling fan (FC) high-speed. Signal too high. Permanent fault |
| P0481 | ECM-87 | Engine cooling fan (FC) high-speed. Signal too low. Intermittent fault |
| P0481 | ECM-87 | Engine cooling fan (FC) high-speed. Signal too low. Permanent fault |
| P0505 | ECM-8A | Idle air control (IAC) valve. Signal missing. Intermittent fault |
| P0505 | ECM-8A | Idle air control (IAC) valve. Signal missing. Permanent fault |
| P0509 | ECM-8A | Idle air control (IAC) valve. Signal too high. Intermittent fault |
| P0508 | ECM-8A | Idle air control (IAC) valve. Signal too low. Intermittent fault |
| P0508 | ECM-8A | Idle air control (IAC) valve. Signal too low. Permanent fault |
| P0509 | ECM-8A | Idle air control (IAC) valve. Signal too high. Permanent fault |
| P0507 | ECM-8D | Idling speed. Signal too high. Intermittent fault |
| P0507 | ECM-8D | Idling speed. Signal too high. Permanent fault |
| P0506 | ECM-8D | Idling speed. Signal too low. Intermittent fault |
| P0506 | ECM-8D | Idling speed. Signal too low. Permanent fault |
| P1600 | ECM-91 | Torque reduction. Diagnostic trouble code (DTC) in the DSA. Intermittent fault |
| P1600 | ECM-91 | Torque reduction. Diagnostic trouble code (DTC) in the DSA. Permanent fault |
| P1600 | ECM-91 | Torque reduction. Faulty signal. Intermittent fault |
| P1600 | ECM-91 | Torque reduction. Faulty signal. Permanent fault |
| P1600 | ECM-91 | Torque reduction. Initialization fault. Intermittent fault |
| P1600 | ECM-91 | Torque reduction. Initialization fault. Permanent fault |
| P1600 | ECM-91 | Torque reduction. Signal missing. Intermittent fault |
| P1600 | ECM-91 | Torque reduction. Signal missing. Permanent fault |
| P1513 | ECM-9A | Communication problems, Immobilizer. No communication |
| P0513 | ECM-9B | Communication problems, Immobilizer. Faulty VIN |
| P0603 P0604 P0605 | ECM-9D | Control module. Internal fault. Intermittent fault |
| P0603 P0604 P0605 | ECM-9D | Control module. Internal fault. Permanent fault |
| P0119 | ECM-A0 | Engine coolant temperature (ECT) sensor. Faulty signal. Intermittent fault |
| P0119 | ECM-A0 | Engine coolant temperature (ECT) sensor. Faulty signal. Permanent fault |
| P0115 P0128 | ECM-A1 | Engine coolant temperature (ECT) sensor. Faulty signal. Intermittent fault |
| P0115 P0128 | ECM-A1 | Engine coolant temperature (ECT) sensor. Faulty signal. Permanent fault |
| P0125 | ECM-A2 | Engine coolant temperature (ECT) sensor. Faulty signal. Intermittent fault |
| P0125 | ECM-A2 | Engine coolant temperature (ECT) sensor. Faulty signal. Permanent fault |
| P0560 P0562 | ECM-A3 | System relay output Signal too high. Intermittent fault |
| P0560 P0562 | ECM-A3 | System relay output Signal too high. Permanent fault |
| P0562 | ECM-A3 | System relay output Signal too low. Intermittent fault |
| P0562 | ECM-A3 | System relay output Signal too low. Permanent fault |
| P0238 | ECM-AC | Boost pressure sensor. Signal too high. Intermittent fault |
| P0238 | ECM-AC | Boost pressure sensor. Signal too high. Permanent fault |
| P0237 | ECM-AC | Boost pressure sensor. Signal too low. Intermittent fault |
| P0237 | ECM-AC | Boost pressure sensor. Signal too low. Permanent fault |
| P0236 | ECM-AD | Boost pressure sensor. Signal too high. Intermittent fault |
| P0236 | ECM-AD | Boost pressure sensor. Signal too high. Permanent fault |
| P0236 | ECM-AD | Boost pressure sensor. Signal too low. Intermittent fault |
| P0236 | ECM-AD | Boost pressure sensor. Signal too low. Permanent fault |
| P1446 | ECM-AF | Leak diagnostic pump. Signal missing. Permanent fault |
| P1446 | ECM-AF | Leak diagnostic pump. Signal too high. Intermittent fault |
| P1446 | ECM-AF | Leak diagnostic pump. Signal too high. Permanent fault |
| P1446 | ECM-AF | Leak diagnostic pump. Signal too low. Intermittent fault |
| P1446 | ECM-AF | Leak diagnostic pump. Signal too low. Permanent fault |
| P1446 | ECM-AF | Leak diagnostic pump. Signal missing. Intermittent fault |
| P0600 | ECM-DC | Communication, Transmission control module (TCM). Faulty signal. Intermittent fault |
| P0600 | ECM-DC | Communication, Transmission control module (TCM). Faulty signal. Permanent fault |
| P0600 | ECM-DD | Communication, Transmission control module (TCM). Faulty signal. Intermittent fault |
| P0600 | ECM-DD | Communication, Transmission control module (TCM). Faulty signal. Permanent fault |
| P0600 | ECM-DE | Communication, Transmission control module (TCM). Faulty signal. Intermittent fault |
| P0600 | ECM-DE | Communication, Transmission control module (TCM). Faulty signal. Permanent fault |
| P0600 | ECM-E0 | Communication, Transmission control module (TCM). Faulty signal. Intermittent fault |
| P0600 | ECM-E0 | Communication, Transmission control module (TCM). Faulty signal. Permanent fault |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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