Automatic Transmission/Transaxle: 5A-45
Transmission Warning Light Circuit Check – Light Does Not Come “ON” at Ignition Switch ON
(Vehicle is equipped with engine diagnosis connector)
S5JB0A5104063
Troubleshooting
Transmission Warning Light Circuit Check – Light Remains “ON” at Ignition Switch ON (Vehicle is
equipped with engine diagnosis connector)
S5JB0A5104064
Troubleshooting
4 4L/N switch signal inspection
1) With ignition switch ON, check voltage between terminal
“E92-4” of TCM connector and ground.
4L/N switch specification
Transfer gear position or “4H”: Battery voltage
Transfer gear position “4L” or “N”: 0 – 2 V
Is result as specified?
Go to Step 5. Faulty “4L” switch or its
circuit. If OK, substitute
a known-good TCM and
recheck.
5 Brake light switch signal inspection
1) With ignition switch ON, check voltage between terminal
“E61-34” of ECM connector and ground.
Brake light switch specification
Brake pedal is released: 0 – 1 V
Brake pedal is depressed: Battery voltage
Is result as specified?
Substitute a known-
good TCM and recheck.
Mis-adjusted brake light
switch, faulty brake light
switch or its circuit. If
OK, substitute a known-
good TCM and recheck.
Step Action Yes No
Step Action Yes No
1 Combination Meter Power Supply Check
1) Turn ignition switch ON.
Does other indicator / warning lights in combination meter
comes ON?
Go to Step 2. Repair combination
meter power supply
circuit referring to
“Combination Meter
Circuit Diagram: in
Section 9C”.
2 1) TCM power and ground circuit check referring to “TCM
Power and Ground Circuit Check: ”.
Is it in good condition?
Go to Step 3. Repair or replace.
3 DTC check
1) Check DTC referring to “DTC Check: ”.
Is there DTC P1774 or P1775?
Go to applicable DTC
diag. flow.
Go to Step 4.
4 Combination Meter Function Check
1) Turn ignition switch ON.
Does A/T selector position indicator show correct select
lever position?
Replace combination
meter.
Substitute a known-
good TCM and recheck.
Step Action Yes No
1 Diagnostic Trouble Code (DTC) Check
1) Check DTC referring to “DTC Check: ”.
Is there any DTC(s)?
Perform DTC Flow to
repair and retry.
Substitute a known-
good TCM and recheck.
If OK, substitute a
known-good
combination meter and
recheck.