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.
1997 Acura 3.5RLFACTORY OEM SERVICE PROCEDURE
Diagnostic Trouble Code Identification
DIAGNOSTIC TROUBLE CODE (DTC) TEST DIRECTORY
| DTC (MIL/"D4" Code) (1) | Description | Go To | ||||||
|---|---|---|---|---|---|---|---|---|
| P0107 (3) | Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage Input | P0107 | ||||||
| P0108 (3) | MAP Sensor Circuit High Voltage Input | P0108 | ||||||
| P0112 (10) | IAT Circuit Low Voltage Input | P0112 | ||||||
| P0113 (10) | IAT Circuit High Voltage Input | P0113 | ||||||
| P0116 (86) | Engine Coolant Temperature (ECT) Sensor Range/Performance Problem | P0116 | ||||||
| P0117 (6) | ECT Circuit Low Voltage Input | P0117 | ||||||
| P0118 (6) | ECT Circuit High Voltage Input | P0118 | ||||||
| P0122 (7) | Throttle Position (TP) Circuit Low Voltage Input | P0122 | ||||||
| P0123 (7) | TP Circuit High Voltage Input | P0123 | ||||||
| P0131 (2) | Right HO2S-1 Low Voltage | P0131 | ||||||
| P0132 (2) | Right HO2S-1 High Voltage | P0132 | ||||||
| P0133 (62) | Right HO2S-1 Slow Response | P0133 | ||||||
| P0135 (42) | Right HO2S-1 Heater Circuit Malfunction | P0135 | ||||||
| P0137 (63) | HO2S-2 Low Voltage | P0137 | ||||||
| P0138 (63) | HO2S-2 High Voltage | P0138 | ||||||
| P0139 (63) | HO2S-2 Slow Response | P0139 | ||||||
| P0141 (65) | HO2S-2 Heater Circuit Malfunction | P0135 | ||||||
| P0151 (1) | Left HO2S-1 Low Voltage | P0131 | ||||||
| P0152 (1) | Left HO2S-1 High Voltage | P0132 | ||||||
| P0153 (61) | Left HO2S-1 Slow Response | P0133 | ||||||
| P0155 (41) | Left HO2S-1 Heater Circuit Malfunction | P0135 | ||||||
| P0171 (46) | System Too Lean (Right Bank) | P0171 | ||||||
| P0172 (46) | System Too Rich (Right Bank) | P0171 | ||||||
| P0174 (45) | System Too Lean (Left Bank) | P0171 | ||||||
| P0175 (45) | System Too Rich (Left Bank) | P0171 | ||||||
| P0325 (53) | Rt Knock Sensor (KS) Circuit Malfunction | P0325 | ||||||
| P0330 (23) | Left KS Circuit Malfunction | P0325 | ||||||
| P0335 (4) | Crankshaft Position (CKP) Sensor No Signal Input | P0335 | ||||||
| P0336 (4) | CKP Sensor Circuit Range/Performance | P0335 | ||||||
| P0401 (80) | EGR Insufficient Flow Detected | P0401 | ||||||
| P0420 (67) | Catalyst System Efficiency Below Threshold | P0420 | ||||||
| P0452 (91) | EVAP Control (Fuel Tank) Pressure Sensor Low Voltage | P0452 | ||||||
| P0453 (91) | EVAP Control (Fuel Tank) Pressure Sensor High Voltage | P0453 | ||||||
| P0505 (14) | Idle Control System Malfunction | P0505 | ||||||
| P0715 (70/15) (1) | Automatic Transmission | (2) | ||||||
| P0720 (70/9) (1) | Automatic Transmission | (2) | ||||||
| P0730 (70/41) (1) | Automatic Transmission | (2) | ||||||
| P0740 (70/40) (1) | Automatic Transmission | (2) | ||||||
| P0753 (70/7) (1) | Automatic Transmission | (2) | ||||||
| P0758 (70/8) (1) | Automatic Transmission | (2) | ||||||
| P1106 (13) | Barometric Pressure Circuit Range/Performance Problem | P1106 | ||||||
| P1107 (13) | Barometric Pressure Circuit Low Voltage Input | P1107 | ||||||
| P1108 (13) | Barometric Pressure Circuit High Voltage Input | P1107 | ||||||
| P1121 (7) | Throttle Position Lower Than Expected | P1121 | ||||||
| P1122 (7) | Throttle Position Higher Than Expected | P1122 | ||||||
| P1128 (5) | Manifold Absolute Pressure Lower Than Expected | P1128 | ||||||
| P1129 (5) | Manifold Absolute Pressure Higher Than Expected | P1129 | ||||||
| P1201 (71) | Cyl No. 1 Misfire Detected (Fuel Related) | P1201 | ||||||
| P1202 (72) | Cyl No. 2 Misfire Detected (Fuel Related) | P1201 | ||||||
| P1203 (73) | Cyl No. 3 Misfire Detected (Fuel Related) | P1201 | ||||||
| P1204 (74) | Cyl No. 4 Misfire Detected (Fuel Related) | P1201 | ||||||
| P1205 (75) | Cyl No. 5 Misfire Detected (Fuel Related) | P1201 | ||||||
| P1206 (76) | Cyl No. 6 Misfire Detected (Fuel Related) | P1201 | ||||||
| P1300 (71-76) | Random Misfire Detected | P1300 | ||||||
| P1301 (71) | Cyl. No. 1 Misfire Detected (Ignition Related) | P1201 | ||||||
| P1302 (72) | Cyl. No. 2 Misfire Detected (Ignition Related) | P1201 | ||||||
| P1303 (73) | Cyl. No. 3 Misfire Detected (Ignition Related) | P1201 | ||||||
| P1304 (74) | Cyl. No. 4 Misfire Detected (Ignition Related) | P1201 | ||||||
| P1305 (75) | Cyl. No. 5 Misfire Detected (Ignition Related) | P1201 | ||||||
| P1306 (76) | Cyl. No. 6 Misfire Detected (Ignition Related) | P1201 | ||||||
| P1316 (79) | Spark Plug Voltage Detection Circuit Malfunction (Left Bank) | P1316 | ||||||
| P1317 (79) | Spark Plug Voltage Detection Circuit Malfunction (Right Bank) | P1316 | ||||||
| P1318 (79) | Spark Plug Voltage Detection Module Reset Malfunction (Left Bank) | P1318 | ||||||
| P1319 (79) | Spark Plug Voltage Detection Module Reset Malfunction (Right Bank) | P1318 | ||||||
| P1336 (54) | Crankshaft Speed Fluctuation (CKF) Sensor Intermittent Interruption | P0335 | ||||||
| P1337 (54) | CKF Sensor No Signal | P0335 | ||||||
| P1381 (9) | CYP Sensor Intermittent Interruption | P0335 | ||||||
| P1382 (9) | CYP Sensor No Signal | P0335 | ||||||
| P1386 (59) | CYP No 2 Sensor Range/Performance Problem | P0335 | ||||||
| P1387 (59) | CYP No. 2 Sensor Circuit Fault | P0335 | ||||||
| P1456 (90) | EVAP Sys Leak Detected (Fuel Tank Area) | P1456 | ||||||
| P1457 (90) | EVAP System Leak Detected (Canister Area) | P1456 | ||||||
| P1491 (12) | EGR Valve Insufficient Lift Detected | P1491 | ||||||
| P1498 (12) | EGR Valve Lift Sensor High Voltage | P1498 | ||||||
| P1508 (14) | Idle Air Control (IAC) Valve Circuit Failure | P1508 | ||||||
| P1607 (-) | PCM Internal Failure | P1607 | ||||||
| P1690 (35) | Traction Control Standby (TC-STB) Input Failure | (3) | ||||||
| P1696 (36) | Traction Control Fuel Cut (TC-FC) Signal Low Input | (3) | ||||||
| P1697 (36) | Traction Control Fuel Cut (TC-FC) Signal High Input | (3) | ||||||
| P1705 (70/5) (1) | Automatic Transmission | (2) | ||||||
| P1706 (70/6) (1) | Automatic Transmission | (2) | ||||||
| P1753 (70/1) (1) | Automatic Transmission | (2) | ||||||
| P1758 (70/2) (1) | Automatic Transmission | (2) | ||||||
| P1768 (70/16) (1) | Automatic Transmission | (2) | ||||||
| P1791 (70/4) (1) | Automatic Transmission | (2) | ||||||
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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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