DIAGNOSTIC TROUBLE CODE CHART
If malfunction code is displayed during the DTC check (sensor check), check the circuit listed for that code in the table below (Proceed to the page given for that circuit).
| DTC No. | Detection Item | Trouble Area | Memory |
|---|---|---|---|
| 00 | Normal | ||
| 11 (1) | Room temperature sensor circuit | Room temp, sensor A/C amplifier (Heater Control Housing) Harness or connector between room temp, sensor and A/C amplifier (Heater Control Housing) | O (8.5 min. or more) |
| 12 (2) | Ambient temperature sensor circuit | Ambient temp, sensor Harness or connector between ambient temp, sensor and A/C amplifier (Heater Control Housing) A/C amplifier (Heater Control Housing) | O (8.5 min. or more) |
| 13 | Evaporator temperature sensor circuit | Evaporator temp, sensor Harness or connector between evaporator temp, sensor and A/C amplifier (Heater Control Housing) A/C amplifier (Heater Control Housing) | O (8.5 min. or more) |
| 14 | Water temperature sensor circuit | Harness or connector between ECM and A/C amplifier (Heater Control Housing) ECM A/C amplifier (Heater Control Housing) | |
| 21 (3) | Solar sensor circuit (short) (Passenger side) | Solar sensor Harness or connector between solar sensor and A/C amplifier (Heater Control Housing), body ECU Body ECU A/C amplifier (Heater Control Housing) | O (8.5 min. or more) |
| Solar sensor circuit (open) | |||
| 22 (4) | Compressor lock sensor circuit | Compressor Drive Belt Compressor lock sensor Compressor ECM Harness or connector between ECM and A/C lock sensor, A/C amplifier (Heater Control Housing) A/C amplifier (Heater Control Housing) | |
| 23 | Pressure switch circuit | Pressure switch A/C amplifier (Heater Control Housing) Harness or connector between pressure switch and A/C amplifier (Heater Control Housing) | |
| 24 (3) | Solar sensor circuit (short) (Driver side) | Solar sensor Harness or connector between solar sensor and A/C amplifier (Heater Control Housing), body ECU Body ECU A/C amplifier (Heater Control Housing) | O (8.5 min. or more) |
| Solar sensor circuit (open) | |||
| 31 | Air mix damper position sensor circuit (Passenger side) | Air mix damper position sensor A/C amplifier (Heater Control Housing) Harness or connector between air mix damper position sensor and A/C amplifier (Heater Control Housing) | |
| 32 | Air inlet damper position sensor circuit | Air inlet damper position sensor (Recirculation damper servo sub-assy) A/C amplifier (Heater Control Housing) Harness or connector between air inlet damper position sensor and A/C amplifier (Heater Control Housing) | O (1 min. or more) |
| 33 | Air outlet damper position sensor circuit | Air outlet damper position sensor (Mode damper servo sub-assy) A/C amplifier (Heater Control Housing) Harness or connector between air outlet damper position sensor (Mode damper servo sub-assy) and A/C amplifier (Heater Control Housing) | O (1 min. or more) |
| 36 | Air mix damper position sensor circuit (Driver side) | Air mix damper position sensor A/C amplifier (Heater Control Housing) Harness or connector between air mix damper position sensor and A/C amplifier (Heater Control Housing) | O (1 min. or more) |
| 41 | Air mix damper control servomotor (Passenger side) | Air mix control servomotor Harness or connector between air mix damper control servomotor and A/C amplifier (Heater Control Housing) A/C amplifier (Heater Control Housing) | O (15 sec.) |
| 42 | Air inlet damper control servomotor | Air inlet control servomotor (Recirculation damper servo sub-assy) Harness or connector between air inlet damper control servomotor and A/C amplifier (Heater Control Housing) A/C amplifier (Heater Control Housing) | O (15 sec.) |
| 43 | Air outlet damper control servomotor | Air outlet control servomotor (Mode damper servo sub-assy) Harness or connector between air outlet damper control servomotor (Mode damper servo sub-assy) and A/C amplifier (Heater Control Housing) A/C amplifier (Heater Control Housing) | O (15 sec.) |
| 46 | Air mix damper control servomotor (Driver side) | Air mix control servomotor Harness or connector between air mix damper control servomotor and A/C amplifier (Heater Control Housing) A/C amplifier (Heater Control Housing) | O (15 sec.) |
| 63 (6) | Seat heater (Driver side) | Seat heater Harness or connector between seat heater and A/C amplifier (Heater Control Housing) A/C amplifier (Heater Control Housing) | |
| 64 (6) | Seat heater (Passenger side) | Seat heater Harness or connector between seat heater and A/C amplifier (Heater Control Housing) A/C amplifier (Heater Control Housing) | |
| (1) If the room temp, is approx. -18.6°C (-3.7°F) or lower, trouble code 11 may be output even though the system is normal. (2) If the ambient temp, is approx. -52.9°C (-61.4°F) or lower, a malfunction code may be output even though the system is normal. (3) If the check is being performed in a dark place, DTC 21, 24 (solar sensor circuit abnormal) could be displayed. (4) Compressor lock (DTC22) is indicated only for a current occurring malfunction (See DTC 22 COMPRESSOR LOCK SENSOR CIRCUIT ). To confirm DTC 22, perform the following steps. (1) With the engine ON, enter the DTC check mode. (2) Press the F/R switch to enter actuator check mode, and set the operation to Step No. 3. (3) Press the AUTO switch to return to DTC check mode. (4) The DTC is displayed after approx. 3 sec. () The A/C amplifier (Heater Control Housing) memorizes the DTC of the respective malfunction it has occurred for the period of the time indicated in the brackets. (6) Even though the system is in good condition, DTC is output when the seat sensor temperature senses -40°C (-40°F) and over 99°C (210.2°F). | |||
| (1) | If the room temp, is approx. -18.6°C (-3.7°F) or lower, trouble code 11 may be output even though the system is normal. |
| (2) | If the ambient temp, is approx. -52.9°C (-61.4°F) or lower, a malfunction code may be output even though the system is normal. |
| (3) | If the check is being performed in a dark place, DTC 21, 24 (solar sensor circuit abnormal) could be displayed. |
| (4) | Compressor lock (DTC22) is indicated only for a current occurring malfunction (See DTC 22 COMPRESSOR LOCK SENSOR CIRCUIT ). To confirm DTC 22, perform the following steps. (1) With the engine ON, enter the DTC check mode. (2) Press the F/R switch to enter actuator check mode, and set the operation to Step No. 3. (3) Press the AUTO switch to return to DTC check mode. (4) The DTC is displayed after approx. 3 sec. |
| () | The A/C amplifier (Heater Control Housing) memorizes the DTC of the respective malfunction it has occurred for the period of the time indicated in the brackets. |
| (6) | Even though the system is in good condition, DTC is output when the seat sensor temperature senses -40°C (-40°F) and over 99°C (210.2°F). |
DIAGNOSTIC TROUBLE CODE
Scheme 8
Scheme 9
Scheme 10
| Symbols (Terminals No.) | Wiring Color | Condition | STD Voltage (V) |
|---|---|---|---|
| ACS <=> GND (A14-2 <=> A15-21) | P-L <=> W-B | Ignition switch: ON A/C switch: OFF --> ON | Below 1.0 V --> 10-14 V |
| TW <=> GND (A14-4 <=> A15-21) | Y-G <=> W-B | Ignition switch: ON | Pulse generation |
| AC1 <=> GND (A14-6 <=> A15-21) | Y-B <=> W-B | Ignition switch: ON Magnetic clutch: OFF --> ON | 3.7 - 4.5 V --> 1.3 - 2.6 V |
| ACI <=> GND (A14-7 <=> A15-21) | B <=> W-B | Ignition switch: ON Magnetic clutch: OFF --> ON | 10-14V --> Below 1.0 V |
| LP <=> GND (A14-10 <=> A15-21) | V <=> W-B | During set preparation | 3-5V |
| PBEW <=> GND (A14-16 <=> A15-21) | L-Y <=> W-B | Seat belt warning light blinks | Below 1.0 V --> 10-14 V |
| SPD <=> GND (A15-1 <=> A15-21) | V-W <=> W-B | Start engine and turn wheel | Pulse generation |
| BLW <=> GND (A15-2 <=> A15-21) | L-O <=> W-B | Ignition switch: ON Blower switch: ON | Pulse generation |
| HR <=> GND (A15-3 <=> A15-21) | L-W <=> W-B | Ignition switch: ON Blower switch: OFF --> ON | 10-14 V --> Below 1.0 V |
| PSW <=> GND (A15-4 <=> A15-21) | L-B <=> W-B | Start engine Refrigerant pressure: Normally --> Less than 196 kpa (2.0 kgf/cm 2 , 28 psi) or more than 3,140 kpa (32.0 kgf/cm 2 , 455 psi) | Below 1.0 --> 0 |
| RDEF <=> GND (A15-5 <=> A15-21) | Y-G <=> W-B | Rear defogger switch: ON --> OFF | Below 1.0 V --> 10-14 V |
| TAM <=> SG-6 (A15-8 <=> A15-39) | G-R <=> B-W | Ignition switch: ON Ambient temp.: 25 °C (77 °F) --> 40 °C (104 °F) | 1.35 - 1.75 V --> 0.85 - 1.25 V |
| TPI <=> SG-2 (A15-9 <=> A15-35) | L-R <=> LG-B | Ignition switch: ON R/F switch: FRESH --> RECIRCULATION | 1.0 V --> 4.0 V |
| S5-1 <=> GND (A15-10 <=> A15-21) | V <=> W-B | Ignition switch: LOCK --> ON | 0 - 5.0 V |
| +B <=> GND (A15-11 <=> A15-21) | W-R <=> W-B | Always | 10-14V |
| IG+ <=> GND (A15-12 <=> A15-21) | L-B <=> W-B | Ignition switch: LOCK --> ON | 0-10-14V |
| AMDH <=> GND (A15-13 <=> A15-21) | B-W <=> W-B | Ignition switch: ON Set temp.: MAX. COOL --> MAX. HOT --> | Below 1.0 V --> 10-14 V |
| AMDC <=> GND (A15-14 <=> A15-21) | LG-R <=> W-B | Ignition switch: ON Set temp.: MAX. HOT --> MAX. COOL ( (1) ) | Below 1.0 V --> 10-14V |
| AmpH <=> GND (A15-15 <=> A15-21) | LG <=> W-B | Ignition switch: ON Set temp.: MAX. COOL --> MAX. HOT ( (1) ) | Below 1.0 V --> 10-14 V |
| AmpC <=> GND (A15-16 <=> A15-21) | L-W <=> W-B | Ignition switch: ON Set temp.: MAX. HOT --> MAX. COOL ( (1) ) | Below 1.0 V --> 10-14 V |
| AOF <=> GND (A15-17 <=> A15-21) | P <=> W-B | Ignition switch: ON Mode select: DEF °FACE ( (1) ) | Below 1.0 V --> 10-14 V |
| AOD & GND (A15-18 <=> A15-21) | O <=> W-B | Ignition switch: ON Set air flow setting: FACE --> DEF ( (1) ) | Below 1.0 V --> 10-14 V |
| AIF <=> GND (A15-19 <=> A15-21) | L <=> W-B | Ignition switch: ON R/F switch: RECIRCULATION - FRESH ( (1) ) | Below 1.0 V --> 10-14 V |
| AIR <=> GND (A15-20 <=> A15-21) | R-L & W-B | Ignition switch: ON R/F switch: FRESH - RECIRCULATION ( (1) ) | Below 1.0 V --> 0-14 V |
| GND <=> Body ground (A15-21 <=> Body ground) | W-B <=> Body ground | Always | Continuity |
| TE <=> SG (A15-23 <=> A15-40) | L-W <=> LG-B | Evaporator temp.: 0 °C (32 °F) --> 15 °C (59 °F) | 2.0-2.4V --> 1.4-1.8V |
| TR <=> SG-5 (A15-24 <=> A15-38) | B <=> LG-B | Ignition switch: ON Cabin temp.: 25 °C (77 °F) --> 40 °C (104 °F) | 1.8 - 2.2V --> 1.2 - 1.6 V |
| TSD <=> Body ground (A15-25 <=> Body ground) | V <=> Body ground | Ignition switch: ON Solar sensor subject to electric light | 0.8 V --> 3.3 V |
| TSP <=> Body ground (A15-26 <=> Body ground) | 0 <=> Body ground | Ignition switch: ON Solar sensor subject to electric light | 0.8 V --> 3.3 V |
| TPD <=> SG-3 (A15-27 <=> A15-36) | L-R & LG-B | Ignition switch: ON Set temp.: MAX. HOT - MAX. COOL | 1.0 V --> 4.0 V |
| TPO <=> SG-1 (A15-28 <=> A15-34) | B-Y <=> LG-B | Ignition switch: ON Set air flow setting: DEF °FACE | 1.0 V --> 4.0 V |
| TPP <=> SG-4 (A15-29 <=> A15-37) | B-R <=> L-B | Ignition switch: ON Set temp.: MAX. HOT --> MAX COOL | 1.0 V --> 4.0 V |
| S5-2 <=> GND (A15-30 <=> A15-21) | V <=> W-B | Ignition switch: LOCK --> ON | 0 --> 5.0 V |
| S5-3 <=> GND (A15-31 <=> A15-21) | V <=> W-B | Ignition switch: LOCK --> ON | 0 --> 5.0V |
| S5-4 <=> GND (A15-32 <=> A15-21) | G-B <=> W-B | Ignition switch: LOCK --> ON | 0 --> 5.0V |
| SG-1 <=> Body ground (A15-34 <=> Body ground) | LG-B <=> Body ground | Always | Continuity |
| SG-2 <=> Body ground (A15-35 <=> Body ground) | LG-B <=> Body ground | Always | Continuity |
| SG-3 <=> Body ground (A15-36 <=> Body ground) | LG-B <=> Body ground | Always | Continuity |
| SG-4 <=> Body ground (A15-37 <=> Body ground) | L-B <=> Body ground | Always | Continuity |
| SG-5 <=> Body ground (A15-38 <=> Body ground) | LG-B <=> Body ground | Always | Continuity |
| SG-6 <=> Body ground (A15-39 <=> Body ground) | B-W <=> Body ground | Always | Continuity |
| SG <=> Body ground (A15-40 <=> Body ground) | LG-B <=> Body ground | Always | Continuity |
| SHDE <=> Body ground (A16-1 <=> Body ground) | LG-B <=> Body ground | Always | Continuity |
| SHDT <=> SHDE (A16-2 <=> A16-1) | B-L <=> LG-B | Ignition switch: ON Temp, of seat heater sensor: 30°C (86°F) --> 50°C (122°F) | 2.6 - 3.0 V --> 1.8-2.2 V |
| SHP+ <=> GND (A16-3 <=> A15-21) | L <=> W-B | Ignition switch: ON | 10-14V |
| SHPE <=> Body ground (A16-4 <=> Body ground) | B <=> Body ground | Always | Below 1V |
| SHPT & SHPE (A16-5 <=> A16-4) | LG <=> B | Ignition switch: ON Temp, of seat heater sensor: 30°C (86°F) --> 50°C (122°F) | 2.6 - 3.0 V --> 1.8-2.2 V |
| SHD+ <=> GND (A16-6 <=> A15-21) | L <=> W-B | Ignition switch: ON | 10-14V |
| SHD- <=> GND (A16-7 <=> A15-21) | R-B <=> W-B | Ignition switch: ON Seat heater switch: OFF - ON | 0 --> 10-14V |
| SHP- <=> GND (A16-8 <=> A15-21) | R-Y <=> W-B | Ignition switch: ON Seat heater switch: OFF --> ON | 0 --> 10-14V |
| (1) When the servomotor is in operation. | |||
| (1) | When the servomotor is in operation. |
HEATER CONTROL HOUSING SUB-ASSY (A/C AMPLIFIER) ECU TERMINALS DESCRIPTION
Scheme 11
| Symbols (Terminals No.) | Wiring Color | Condition | STD Voltage (V) |
|---|---|---|---|
| HP <==> Body ground (E7-1 <==> Body ground) | BR <==> Body ground | Always | Continuity |
| ACMG <==> E1 (E7-3 <==> E8-1) | L-W <==> BR | Engine start A/C switch: OFF --> ON | 10-14 V --> Below 1.0 V |
| THWO <==> E1 (E7-14 <==> E8-1) | Y-G <==> BR | Ignition switch: ON | Pulse generation |
| A/CS <==> E1 (E7-31 <==> E8-1) | P-L <==> BR | Engine start A/C switch: OFF - ON | Below 1.0 V --> 10-14 V |
| THR <==> E1 (E7-32 <==> E8-1) | Y-B <==> BR | Engine start A/C switch: OFF --> ON | 3.7-4.5 V --> 1.3-2.6 V |
| A/CI <==> E1 (E7-33 <==> E8-1) | B <==> BR | Engine start A/C switch: OFF - ON | 10-14V --> Below 1.0 V |
| LCKl <==> E1 (E8-23 <==> E8-1) | W-L <==> BR | Engine start A/C switch: OFF - ON | Pulse generation |
| E1 <==> Body ground (E8-1 <==> Body ground) | BR <==> Body ground | Always | Continuity |
ECM TERMINALS DESCRIPTION