Manual Transmission

Diagnostic Trouble Code (DTC) 83:

Reverse Inhibit Solenoid Circuit:

CIRCUIT DESCRIPTION
The reverse lockout solenoid will be energized when the Powertrain Control Module (PCM) grounds CKT 1652, which will allow the transmission to be shifted into reverse. The PCM will enable the reverse lockout solenoid whenever vehicle speed is below 4 mph. When vehicle speed is above 5 mph, the PCM will de-energize the reverse lockout solenoid, which will prohibit the transmission from being shifted into reverse.

DTC 83 WILL SET WHEN
The PCM detects the wrong voltage potential on CKT 1652 for 26 seconds.

ACTION TAKEN (PCM WILL DEFAULT TO)
Diagnostic Trouble Code (DTC) 83 will be stored in the PCM memory but will not turn "ON" the Malfunction Indicator Lamp (MIL).

TEST DESCRIPTION
Number(s) below refer to circled number(s) on the diagnostic chart.

1. The reverse inhibit solenoid will be enabled whenever vehicle speed is below 5 mph. If there is a fault in the vehicle speed sensor circuit (VSS) and the PCM is not receiving VSS signal, the reverse inhibit solenoid would be enabled at speeds above 5 mph (8 km/h) and the shifter could be placed into reverse. With the ignition "OFF" the transmission should not shift into reverse.
2. This check can detect a partially shorted coil which would cause excessive current flow. If excessive current flow is detected a circuit check will be performed to isolate the device from the wiring. Leave the circuit energized for 2 minutes to allow the coil to warm up. The coil may open (amps drop to "0") when warm.
3. Raise the vehicle enough to gain access to the reverse lockout solenoid electrical harness and still be able to turn the ignition "ON."