Home/Lexus/HS/Lexus HS I (2009-2012)/Repair manual/Automatic Trans/Electronic Shift Lever (Diagnostic Codes & Circuit Tests): …
Contents Wiring diagrams Section: Automatic Trans All sections

Electronic Shift Lever (Diagnostic Codes & Circuit Tests): Diagnosis Lexus HS I

Automatic Trans 18 illustrations ~4347 words

INSPECTION PROCEDURE

Note. It is not possible to clear the following DTCs using the Techstream: DTCs C2300 (Actuator System Malfunction), C2301 (Shift Changing Time Malfunction), C2303 (Short in Power Source Relay Circuit), C2304 (Open or Short Circuit in U Phase), C2305 (Open or Short Circuit in V Phase), C2306 (Open or Short Circuit in W Phase), C2307 (Power Supply) and C2309 (Open in B+ Circuit). After the repair, it is necessary to disconnect the P CON MAIN fuse and wait for at least 60 seconds to clear the DTCs.

Scheme 118

Scheme 118: PROCEDURE

Scheme 119

Scheme 119

Scheme 120

Scheme 120

Scheme 121

Scheme 121

Scheme 122

Scheme 122

Scheme 123

Scheme 123
  1. CHECK FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Chassis / Transmission Control / Trouble Codes. Read the freeze frame data "Current flag record" of C2300. RESULT Result Proceed to OFF A ON B Turn the power switch off. B --> See step 12 A: Go to next step
  2. CHECK DTC OUTPUT (TRANSMISSION CONTROL) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Chassis / Transmission Control / Trouble Codes. Check if DTCs are output. RESULT Result Proceed to Any of the following DTCs are not output. A Any of the following DTCs are output. B DTC No. Relevant Diagnosis C2304 Open or Short Circuit in U Phase C2305 Open or Short Circuit in V Phase C2306 Open or Short Circuit in W Phase Turn the power switch off. B --> See step 13 A: Go to next step
  3. CHECK FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Chassis / Transmission Control / Trouble Codes. Read the freeze frame data of C2300. RESULT Result Proceed to IG (+B) voltage is 9 V or more A IG (+B) voltage is less than 9 V B Turn the power switch off. B --> See step 14 A: Go to next step
  4. CLEAR DTC Turn the power switch on (IG). Enter the following menus: Chassis / Transmission Control / Trouble Codes. Read and record the DTCs and freeze frame data. Turn the power switch off. Disconnect the P CON MAIN fuse and wait for at least 60 seconds. Check for DTCs again to check if the DTCs are cleared. NEXT: Go to next step
  5. CHARGE AUXILIARY BATTERY Charge the auxiliary battery. NEXT: Go to next step
  6. CHECK DTC OUTPUT (SIMULATION TEST) Connect the Techstream to the DLC3. Release the brake pedal and turn the power switch on (IG). HINT: Do not turn the power switch on (READY). Depress the brake pedal and move the shift lever to N. Enter the following menus: Chassis / Transmission Control / Trouble Codes. Check if DTCs are output. RESULT Result Proceed to C2300 is output. A DTC is not output. B Turn the power switch off. B --> END (AUXILIARY BATTERY WAS INSUFFICIENTLY CHARGED) A: Go to next step
  7. CHECK TRANSMISSION CONTROL ECU ASSEMBLY (VC, RA, RB, E2) Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition A35-7 (VC) - A35-19 (E2) Engine stopped (hybrid system stopped), power switch on (IG) 4.5 to 5.5 V A35-17 (RA) - A35-19 (E2) Power switch off to on (IG) 0 to 1.5 V <----> 4 to 5.5 V A35-8 (RB) - A35-19 (E2) Power switch off to on (IG) 0 to 1.5 V <----> 4 to 5.5 V TEXT IN ILLUSTRATION *1 Component with harness connected (Transmission Control ECU Assembly) Turn the power switch off. Turn the power switch on (IG). Connect an oscilloscope between the transmission control ECU assembly terminals specified in the table below, and measure the waveform. Item Contents Symbols A35-17 (RA) - A35-19 (E2) A35-8 (RB) - A35-19 (E2) Tool setting 2 V/DIV., 100 msec./DIV. Vehicle condition Power switch on (IG) Shift lever moved from P to N or from N to P TEXT IN ILLUSTRATION *1 Component with harness connected (Transmission Control ECU Assembly) *2 Waveform (Scheme 119) OK A waveform of 500 ms or less will be generated HINT: Perform this inspection with the connector connected. When the shift lever is moved from P to N or N to P with the power switch on (IG), a waveform (Scheme 119) will be generated for up to 0.5 seconds. The waveform (Scheme 119) shown is for reference only. Turn the power switch off. Result Result Proceed to Abnormal A Normal B B --> See step 9 A: Go to next step
  8. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL ECU ASSEMBLY - SHIFT CONTROL ACTUATOR) Disconnect connector A35 from the transmission control ECU assembly. Disconnect connector from the shift control actuator assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Switch Condition Specified Condition A35-7 (VC) - C27-9 (RVC) Power switch off Below 1 ohms A35-17 (RA) - C27-3 (RA) Power switch off Below 1 ohms A35-8 (RB) - C27-5 (RB) Power switch off Below 1 ohms A35-19 (E2) - C27-8 (RE2) Power switch off Below 1 ohms Standard Resistance (Check for Short) Tester Connection Switch Condition Specified Condition A35-7 (VC) or C27-9 (RVC) - Body ground and other terminals Power switch off 10 kohms or higher A35-17 (RA) or C27-3 (RA) - Body ground and other terminals Power switch off 10 kohms or higher A35-8 (RB) or C27-5 (RB) - Body ground and other terminals Power switch off 10 kohms or higher A35-19 (E2) or C27-8 (RE2) - Body ground and other terminals Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Transmission Control ECU Assembly) *2 Front view of wire harness connector (to Shift Control Actuator Assembly) Connect the shift control actuator assembly connector. Connect the transmission control ECU assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  9. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL ECU ASSEMBLY - BODY GROUND) Disconnect connector A36 from the transmission control ECU assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Switch Condition Specified Condition A36-6 (E01) - Body ground Power switch off Below 1 ohms A36-5 (E02) - Body ground Power switch off Below 1 ohms TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Transmission Control ECU Assembly) Connect the transmission control ECU assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  10. CHECK SHIFT CONTROL ACTUATOR ASSEMBLY Disconnect connector from the shift control actuator assembly. Remove the 3 shift control actuator bolts. Refer to «COMPONENTS»(ref-398214-S24720614572011051600000). Slightly pull the shift control actuator assembly from the hybrid vehicle transaxle. Using a screwdriver with its tip wrapped with protective tape or a piece of cloth, rotate the shaft. OK The shift control actuator assembly turns smoothly. NOTE: During this inspection, make sure to use a screwdriver with its tip wrapped with protective tape or a piece of cloth to prevent the splines of the actuator from being damaged. The shift control actuator cannot be disassembled. NG --> See step 15 OK: Go to next step
  11. CHECK HYBRID VEHICLE TRANSAXLE ASSEMBLY Wrap the shaft with a piece of cloth and turn it using pliers. OK The shaft rotates smoothly in the lock and unlock directions. NOTE: Rotates the shaft using torque within 4 to 7 N*m (41 to 71 kgf*cm, 36 to 61 in.*lbf). During this inspection, ensure to use a piece of cloth to prevent the shaft splines from being damaged. TEXT IN ILLUSTRATION *1 Lock *2 Unlock *3 Rotate approximately 20°. Set the shaft in the lock position after the inspection. NG --> See step 16 OK --> See step 12
  12. REPLACE TRANSMISSION CONTROL ECU ASSEMBLY. Refer to «COMPONENTS»(ref-398214-S31258116822011051600000)
  13. GO TO DTC CHART. Refer to «DTC C2304: Open or Short Circuit in U Phase; DTC C2305: Open or Short Circuit in V Phase; DTC C2306: Open or Short Circuit in W Phase»(ref-398276-S17377539582011051600000)
  14. REPLACE AUXILIARY BATTERY. Refer to «COMPONENTS»(ref-398219-S11335112122011051600000)
  15. REPLACE SHIFT CONTROL ACTUATOR ASSEMBLY. Refer to «COMPONENTS»(ref-398214-S24720614572011051600000)
  16. REPLACE HYBRID VEHICLE TRANSAXLE ASSEMBLY. Refer to «COMPONENTS»(ref-398214-S42584983582011051600000)

Note. It is not possible to clear the following DTCs using the Techstream: DTCs C2300 (Actuator System Malfunction), C2301 (Shift Changing Time Malfunction), C2303 (Short in Power Source Relay Circuit), C2304 (Open or Short Circuit in U Phase), C2305 (Open or Short Circuit in V Phase), C2306 (Open or Short Circuit in W Phase), C2307 (Power Supply) and C2309 (Open in B+ Circuit). After the repair, it is necessary to disconnect the P CON MAIN fuse and wait for at least 60 seconds to clear the DTCs.

Note. It is not possible to clear the following DTCs using the Techstream: DTCs C2300 (Actuator System Malfunction), C2301 (Shift Changing Time Malfunction), C2303 (Short in Power Source Relay Circuit), C2304 (Open or Short Circuit in U Phase), C2305 (Open or Short Circuit in V Phase), C2306 (Open or Short Circuit in W Phase), C2307 (Power Supply) and C2309 (Open in B+ Circuit). After the repair, it is necessary to disconnect the P CON MAIN fuse and wait for at least 60 seconds to clear the DTCs.

Scheme 124

Scheme 124: PROCEDURE

Scheme 125

Scheme 125

Scheme 126

Scheme 126
  1. CHECK SHIFT CONTROL ACTUATOR ASSEMBLY (SHIFT CONTROL ACTUATOR ASSEMBLY POWER SOURCE CIRCUIT) Disconnect connector from the shift control actuator assembly connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition C27-2 (BMA) - Body ground Power switch off Below 1 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Shift Control Actuator Assembly) Connect the shift control actuator assembly connector. Turn the power switch off. NG --> See step 3 OK: Go to next step
  2. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL ECU ASSEMBLY - SHIFT CONTROL ACTUATOR) Disconnect connector A35 from the transmission control ECU assembly. Disconnect connector from the shift control actuator assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Short) Tester Connection Switch Condition Specified Condition A35-5 (MUA) or C27-1 (MUA) - Body ground and other terminals Power switch off 10 kohms or higher A35-2 (MVA) or C27-6 (MVA) - Body ground and other terminals Power switch off 10 kohms or higher A35-1 (MWA) or C27-7 (MWA) - Body ground and other terminals Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Transmission Control ECU Assembly) *2 Front view of wire harness connector (to Shift Control Actuator Assembly) Connect the shift control actuator assembly connector. Connect the transmission control ECU assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 5
  3. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL ECU ASSEMBLY - NO. 2 INTEGRATION RELAY) Disconnect connector A35 from the transmission control ECU assembly. Disconnect connector 1G from the No. 2 integration relay. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Short) Tester Connection Switch Condition Specified Condition A35-23 (BMA) - Body ground and other terminals Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Transmission Control ECU Assembly) Connect the No. 2 integration relay connector. Connect the transmission control ECU assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  4. CHECK HARNESS AND CONNECTOR (SHIFT CONTROL ACTUATOR ASSEMBLY - NO. 2 INTEGRATION RELAY) Disconnect connector from the shift control actuator assembly. Disconnect connector 1H from the No. 2 integration relay. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Short) Tester Connection Switch Condition Specified Condition C27-2 (BMA) - Body ground and other terminals Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Shift Control Actuator Assembly) Connect the No. 2 integration relay connector. Connect the shift control actuator assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 6
  5. REPLACE TRANSMISSION CONTROL ECU ASSEMBLY. Refer to «COMPONENTS»(ref-398214-S31258116822011051600000)
  6. REPLACE NO. 2 INTEGRATION RELAY. Refer to «COMPONENTS»(ref-398241-S21200167662011051600000)

Note. Do not remove/install the auxiliary battery or disconnect the cable from the battery terminal before instructed. Do not disconnect the connectors before instructed. It is not possible to clear the following DTCs using the Techstream: DTCs C2300 (Actuator System Malfunction), C2301 (Shift Changing Time Malfunction), C2303 (Short in Power Source Relay Circuit), C2304 (Open or Short Circuit in U Phase), C2305 (Open or Short Circuit in V Phase), C2306 (Open or Short Circuit in W Phase), C2307 (Power Supply) and C2309 (Open in B+ Circuit). After the repair, it is necessary to disconnect the P CON MAIN fuse and wait for at least 60 seconds to clear the DTCs.

Scheme 127

Scheme 127: PROCEDURE

Scheme 128

Scheme 128

Scheme 129

Scheme 129

Scheme 130

Scheme 130

Scheme 131

Scheme 131

Scheme 132

Scheme 132
  1. CHECK DTC OUTPUT (TRANSMISSION CONTROL) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Chassis / Transmission Control / Trouble Codes. Check if DTCs are output. RESULT Result Proceed to C2304, C2305 and C2306 are detected simultaneously A One of C2304, C2305 and C2306 is detected B HINT: If DTCs C2304, 2305 and 2306 are stored at the same time, there may be a malfunction in the parking lock motor (BMA signal) power source circuit. If DTC C2304, 2305 or 2306 is stored individually, there may be a malfunction in the parking lock motor (MUA, MVA or MWA signal) circuits. Turn the power switch off. B --> See step 7 A: Go to next step
  2. CHECK FREEZE FRAME DATA Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Chassis / Transmission Control / Trouble Codes. Read the freeze frame data of C2304, 2305 and 2306. RESULT Result Proceed to IG (+B) voltage is 9 V or more A IG (+B) voltage is less than 9 V B Turn the power switch off. B --> REPLACE AUXILIARY BATTERY A: Go to next step
  3. CHECK NO. 2 INTEGRATION RELAY Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Switch Condition Specified Condition D1 - Body ground Power switch on (IG) 3.5 to 5.0 V D2 - Body ground Power switch on (IG) 3.5 to 5.0 V TEXT IN ILLUSTRATION *1 Component with harness connected (No. 2 Integration Relay) HINT: If the result is not as specified, one of the electrical loads connected to the No. 2 integration relay may have a short circuit. Result Result Proceed to The voltage of D1 and D2 is within the specified range. A The voltage of D1 or D2 is 0.5 V or less. B Turn the power switch off. B --> See step 7 A: Go to next step
  4. CLEAR DTC See step 4 NEXT: Go to next step
  5. CHARGE AUXILIARY BATTERY Charge the auxiliary battery. NEXT: Go to next step
  6. CHECK DTC OUTPUT (SIMULATION TEST) Connect the Techstream to the DLC3. Release the brake pedal and turn the power switch on (IG). HINT: Do not turn the power switch on (READY). Depress the brake pedal and move the shift lever to N. Enter the following menus: Chassis / Transmission Control / Trouble Codes. Check if DTCs are output. RESULT Result Proceed to C2304, 2305 or 2306 is output. A DTC is not output. B Turn the power switch off. B --> END (AUXILIARY BATTERY WAS INSUFFICIENTLY CHARGED) A: Go to next step
  7. READ VALUE USING TECHSTREAM (U, V, W VOLTAGE) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Chassis / Transmission Control / Data List / U Phase Voltage Value, V Phase Voltage Value, W Phase Voltage Value. Read the data list displayed on the Techstream. Result Tester Display Switch Condition Specified Condition U Phase Voltage Value Power switch on (IG) 9 to 14 V V Phase Voltage Value Power switch on (IG) 9 to 14 V W Phase Voltage Value Power switch on (IG) 9 to 14 V Turn the power switch off. NG --> See step 8 OK --> See step 15
  8. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL ECU ASSEMBLY - SHIFT CONTROL ACTUATOR) Disconnect connector A35 from the transmission control ECU assembly. Disconnect connector from the shift control actuator assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Switch Condition Specified Condition A35-5 (MUA) - C27-1 (MUA) Power switch off Below 1 ohms A35-2 (MVA) - C27-6 (MVA) Power switch off Below 1 ohms A35-1 (MWA) - C27-7 (MWA) Power switch off Below 1 ohms Standard Resistance (Check for Short) Tester Connection Switch Condition Specified Condition A35-5 (MUA) or C27-1 (MUA) - Body ground and other terminals Power switch off 10 kohms or higher A35-2 (MVA) or C27-6 (MVA) - Body ground and other terminals Power switch off 10 kohms or higher A35-1 (MWA) or C27-7 (MWA) - Body ground and other terminals Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Transmission Control ECU Assembly) *2 Front view of wire harness connector (to Shift Control Actuator Assembly) Connect the shift control actuator assembly connector. Connect the transmission control ECU assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  9. CHECK HARNESS AND CONNECTOR (NO. 2 INTEGRATION RELAY POWER SOURCE CIRCUIT) Disconnect connectors 1G and 1H from the No. 2 integration relay. Turn the power switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition 1H-7 (BATT) - Body ground Always 9 to 14 V 1G-14 (IG1) - Body ground Power switch on (IG) 9 to 14 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to No. 2 integration Relay) Turn the power switch off. Connect the No. 2 integration relay connectors. NG --> CHECK AND REPAIR POWER SOURCE CIRCUIT OK: Go to next step
  10. CHECK HARNESS AND CONNECTOR (SHIFT CONTROL ACTUATOR ASSEMBLY - NO. 2 INTEGRATION RELAY) Disconnect connector from the shift control actuator assembly. Disconnect connector 1H from the No. 2 integration relay. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Switch Condition Specified Condition C27-2 (BMA) - 1H-8 (PCNT) Power switch off Below 1 ohms Standard Resistance (Check for Short) Tester Connection Switch Condition Specified Condition C27-2 (BMA) or 1H-8 (PCNT) - Body ground and other terminals Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Shift Control Actuator Assembly) *2 Front view of wire harness connector (to No. 2 integration Relay) Connect the No. 2 integration relay connector. Connect the shift control actuator assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  11. CHECK SHIFT CONTROL ACTUATOR ASSEMBLY Disconnect connector A35 from the transmission control ECU assembly connector. Disconnect connector 1H from the No. 2 integration relay connector. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Switch Condition Specified Condition A35-5 (MUA) - 1H-8 (PCNT) Power switch off Below 50 ohms A35-2 (MVA) - 1H-8 (PCNT) Power switch off Below 50 ohms A35-1 (MWA) - 1H-8 (PCNT) Power switch off Below 50 ohms Standard Resistance (Check for Short) Tester Connection Switch Condition Specified Condition A35-5 (MUA) - Body ground Power switch off 10 kohms or higher A35-2 (MVA) - Body ground Power switch off 10 kohms or higher A35-1 (MWA) - Body ground Power switch off 10 kohms or higher 1H-8 (PCNT) - Body ground Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Transmission Control ECU Assembly) *2 Front view of wire harness connector (to No. 2 Integration Relay) Connect the No. 2 integration relay connector. Connect the transmission control ECU assembly connector. NG --> See step 16 OK: Go to next step
  12. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL ECU ASSEMBLY - NO. 2 INTEGRATION RELAY) Disconnect connector A35 from the transmission control ECU assembly. Disconnect connector 1G from the No. 2 integration relay. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Switch Condition Specified Condition A35-23 (BMA) - 1G-7 (PCN) Power switch off Below 1 ohms Standard Resistance (Check for Short) Tester Connection Switch Condition Specified Condition A35-23 (BMA) or 1G-7 (PCN) - Body ground and other terminals Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Transmission Control ECU Assembly) *2 Front view of wire harness connector (to No. 2 integration Relay) Connect the No. 2 integration relay connector. Connect the transmission control ECU assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  13. CHECK HARNESS AND CONNECTOR (NO. 2 INTEGRATION RELAY - BODY GROUND) Disconnect connectors 1G and 1H from the No. 2 integration relay. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Switch Condition Specified Condition 1G-22 (GND1) - Body ground Power switch off Below 1 ohms 1H-3 (GND2) - Body ground Power switch off Below 1 ohms TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to No. 2 integration Relay) Connect the No. 2 integration relay connectors. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  14. REPLACE NO. 2 INTEGRATION RELAY Replace the No. 2 integration relay. Refer to «COMPONENTS»(ref-398241-S21200167662011051600000) . NEXT --> See step 15
  15. REPLACE TRANSMISSION CONTROL ECU ASSEMBLY. Refer to «COMPONENTS»(ref-398214-S31258116822011051600000)
  16. REPLACE SHIFT CONTROL ACTUATOR ASSEMBLY. Refer to «COMPONENTS»(ref-398214-S24720614572011051600000)

Note. It is not possible to clear the following DTCs using the Techstream: DTCs C2300 (Actuator System Malfunction), C2301 (Shift Changing Time Malfunction), C2303 (Short in Power Source Relay Circuit), C2304 (Open or Short Circuit in U Phase), C2305 (Open or Short Circuit in V Phase), C2306 (Open or Short Circuit in W Phase), C2307 (Power Supply) and C2309 (Open in B+ Circuit). After the repair, it is necessary to disconnect the P CON MAIN fuse and wait for at least 60 seconds to clear the DTCs.

Scheme 133

Scheme 133: PROCEDURE
  1. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL ECU ASSEMBLY - BODY GROUND) Disconnect connector A36 from the transmission control ECU assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Switch Condition Specified Condition A36-1 (E1) - Body ground Power switch off Below 1 ohms TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Transmission Control ECU Assembly) Connect the transmission control ECU assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  2. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL ECU ASSEMBLY - SHIFT CONTROL ACTUATOR) See step 2 NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 3
  3. REPLACE TRANSMISSION CONTROL ECU ASSEMBLY. Refer to «COMPONENTS»(ref-398214-S31258116822011051600000)

Note. It is not possible to clear the following DTCs using the Techstream: DTCs C2300 (Actuator System Malfunction), C2301 (Shift Changing Time Malfunction), C2303 (Short in Power Source Relay Circuit), C2304 (Open or Short Circuit in U Phase), C2305 (Open or Short Circuit in V Phase), C2306 (Open or Short Circuit in W Phase), C2307 (Power Supply) and C2309 (Open in B+ Circuit). After the repair, it is necessary to disconnect the P CON MAIN fuse and wait for at least 60 seconds to clear the DTCs.

Scheme 134

Scheme 134: PROCEDURE

Scheme 135

Scheme 135
  1. READ VALUE USING TECHSTREAM (IG(+B) VOLTAGE VALUE) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Chassis / Transmission Control / Data List / IG(+B) Voltage Value. Read the Data List displayed on the Techstream. Result Result Proceed to 3 V or less A Other than above B Turn the power switch off. B --> See step 5 A: Go to next step
  2. INSPECT FUSE Remove the IGCT, IGCT NO. 2 fuse from the engine room junction block assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition IGCT fuse Always Below 1 ohms IGCT NO. 2 fuse Always Below 1 ohms TEXT IN ILLUSTRATION *1 Engine Room Junction Block Assembly *2 IGCT fuse *3 IGCT NO. 2 fuse Install the IGCT, IGCT NO. 2 fuse. NG --> REPLACE FUSE OK: Go to next step
  3. READ VALUE USING TECHSTREAM (BATTERY VOLTAGE VALUE) Connect the Techstream to the DLC3. Turn the power switch on (IG). Enter the following menus: Chassis / Transmission Control / Data List / Battery Voltage Value. Read the Data List displayed on the Techstream. Result Result Proceed to 9 V or more A Other than above B Turn the power switch off. B --> See step 6 A: Go to next step
  4. CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL ECU ASSEMBLY - IGCT NO. 2 FUSE) Disconnect connector A35 from the transmission control ECU assembly. Remove the IGCT NO. 2 fuse from the engine room junction block assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance (Check for Open) Tester Connection Switch Condition Specified Condition A35-16 (+B) - 2 (IGCT NO. 2 fuse) Power switch off Below 1 ohms Standard Resistance (Check for Short) Tester Connection Switch Condition Specified Condition A35-16 (+B) - Body ground and other terminals Power switch off 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Transmission Control ECU Assembly) *2 Engine Room Junction Block Assembly *3 IGCT NO. 2 fuse NOTE: Be careful not to break the fuse holder by forcing the tester probes into it during this inspection. Install the IGCT NO. 2 fuse. Connect the transmission control ECU assembly connector. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> CHECK AND REPAIR POWER SOURCE CIRCUIT
  5. REPLACE TRANSMISSION CONTROL ECU ASSEMBLY. Refer to «COMPONENTS»(ref-398214-S31258116822011051600000)
  6. CHARGE OR REPLACE AUXILIARY BATTERY. Refer to «COMPONENTS»(ref-398219-S11335112122011051600000)