P0783

Tests 982 - 988:

Tests 989 - 992:

Test 993:

SYMPTOM
P-0783 3-4 SHIFT SOL. NO RPM DROP @ 3-4 SHIFT

WHEN MONITORED
Continuously with the key on and engine running.

SET CONDITION
This code is set if the expected engine RPM drop does not occur within 4 seconds of the gear change being requested by the PCM. Three consecutive bad tests are required to set the code.

POSSIBLE CAUSES
- Transmission defective
- TPS codes set
- Transmission 3-4 solenoid wiring harness intermittent defect
- Transmission 3-4 solenoid wiring harness observable defect
- Oil burnt or oil pan has excessive debris
- Transmission fluid level ok and uncontaminated