Lexus NX: Diagnostic Trouble Code Chart
Lexus NX Service Manual / Vehicle Interior / Theft Deterrent / Keyless Entry / Smart Access System With Push-button Start (for Start Function) / Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Smart Access System with Push-button Start (for Start Function)| DTC No. | Detection Item | Link |
|---|---|---|
| B2271 | Ignition Hold Monitor Malfunction | |
| B2274 | ACC Monitor Malfunction | |
| B2275 | STSW Monitor Malfunction | |
| B2277 | Detecting Vehicle Submersion | |
| B2282 | Vehicle Speed Signal Malfunction | |
| B2283 | Vehicle Speed Sensor Malfunction | |
| B2284 | Brake Signal Malfunction | |
| B2285 | Steering Lock Position Signal Circuit Malfunction | |
| U0140 | Lost Communication with Main Body ECU | |
| U0142 | Lost Communication with Main Body ECU | |
| U0155 | Lost Communication with Combination Meter | |
| U0293 | Lost Communication with Hybrid Vehicle Control System | |
| U1117 | Lost Communication with Accessory Gateway | |
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Ignition Hold Monitor Malfunction (B2271)
DESCRIPTION This DTC is stored when a malfunction in the IG circuit and IG hold circuit in the certification ECU (smart key ECU assembly) is detected. DTC No. Detection Item DTC Detection Condi
ACC Monitor Malfunction (B2274)
DESCRIPTION This DTC is stored when a malfunction in the ACC output circuit is detected. The ACC output circuit is the circuit that goes from the ACC output terminal of the certification ECU (smart ke
STSW Monitor Malfunction (B2275)
DESCRIPTION This DTC is stored when a malfunction is detected in the starter circuit inside the certification ECU (smart key ECU assembly). DTC No. Detection Item DTC Detection Condition Trou
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Check Bus 5 Line for Short to GND
DESCRIPTION There may be a short circuit between one of the CAN bus lines and GND when there is no resistance between terminal 15 (CA5H) of the central gateway ECU (network gateway ECU) and terminal 4 (CG) of the DLC3, or terminal 16 (CA5L) of the central gateway ECU (network gateway ECU) and termin
Refrigerant Shortage (B14B8)
DESCRIPTION This DTC is stored if the amount of refrigerant in the air conditioning system is insufficient. The air conditioning amplifier assembly receives the ambient temperature signal, refrigerant pressure signal etc. from various sensors. Based on these signals, the air conditioning amplifier a
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