Inspection steps
WARNING: This page is about a different variant/trim than selected.
CAUTION:
Before performing troubleshooting, check the fuse for this circuit.
- Perform a unit inspection of neutral start switch ASSY
- Disconnect the connector A19 of the transmission control computer ASSY
- Measure the resistance between the terminals.STANDARD VALUE RESISTANCE SPECIFICATION
Inspection terminals Inspection conditions Standard value A19-3 (P) - L2-2 (RB) Select lever in P position Less than 1 Ω A19-10 (R) - L2-2 (RB) Select lever in R position Less than 1 Ω A19-21 (N) - L2-2 (RB) Select lever in N position Less than 1 Ω A19-9 (D) - L2-2 (RB) Select lever in D position Less than 1 Ω A19-3 (P) - L2-2 (RB) Select lever in any other than P position 10 k Ω or more A19-10 (R) - L2-2 (RB) Select lever in any other than R position 10 k Ω or more Inspection terminals Inspection conditions Standard value A19-21 (N) - L2-2 (RB) Select lever in any other than N position 10 k Ω or more A19-9 (D) - L2-2 (RB) Select lever in any other than D position 10 k Ω or more - Connect the connector A19 of the transmission control computer ASSY.
NG: Go to Step 4.
OK: Go to next step
- Check of neutral start switch ASSY (power supply voltage)
- Disconnect the connector L2 of the neutral start switch ASSY
- Turn the ignition switch to ON.
- Measure the voltage between the terminals.VOLTAGE SPECIFICATION
Inspection terminals Inspection conditions Standard value L2-2 (RB) - chassis ground IG ON 11 to 14 V - Connect the connector L2 of the neutral start switch ASSY
NG: Repair or replacement of wiring harness or connector (power supply system)
OK: Go to next step
- Replacement of transmission control computer ASSY
- Replace the transmission control computer ASSY (Refer to TRANSMISSION CONTROL COMPUTER ASSY )
AT unit correction (refer to WORK SUPPORT )
- Check wiring harness and connector (neutral start switch ASSY - transmission control computer)NOTE: For the inspection procedure and precautions for wiring harnesses and connectors, refer to INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM .
- Disconnect the connector A19 of the transmission control computer ASSY.
- Disconnect the connector L2 of the neutral start switch ASSY
- Measure the resistance between the terminals. (Refer to ECM TERMINAL ARRANGEMENT
for terminal arrangement of transmission control computer ASSY)STANDARD VALUE RESISTANCE SPECIFICATION
Terminal No. (terminal symbol) Inspection conditions Standard value A19-3 (P) - L2-6 (PL) Always Less than 1 Ω A19-10 (R) - L2-1 (RL) Always Less than 1 Ω A19-21 (N) - L2-9 (NL) Always Less than 1 Ω A19-9 (D) - L2-7 (DL) Always Less than 1 Ω A19-3 (P) - chassis ground Always 10 k Ω or more A19-10 (R) - chassis ground Always 10 k Ω or more A19-21 (N) - chassis ground Always 10 k Ω or more A19-9 (D) - chassis ground Always 10 k Ω or more - Measure the voltage between the terminals. (Refer to ECM TERMINAL ARRANGEMENT
for terminal arrangement of transmission control computer ASSY)VOLTAGE SPECIFICATION
Terminal No. (terminal symbol) Inspection conditions Standard value A19-3 (P) - chassis ground IG ON 1 V or less A19-10 (R) - chassis ground IG ON 1 V or less A19-21 (N) - chassis ground IG ON 1 V or less A19-9 (D) - chassis ground IG ON 1 V or less - Connect the connector A19 of the transmission control computer ASSY
- Connect the connector L2 of the neutral start switch ASSY
NG: Repair or replacement of wiring harness or connector
OK: Go to next step
Replacement of neutral start switch ASSY (Refer to NEUTRAL START SWITCH ASSY )