Diagnostic Procedure

STEP	INSPECTION		ACTION
1	INSPECT SELECTOR LEVER POSITION SIGNAL FOR MALFUNCTION With the ignition at the ON, does the shift position indicator light indication correspond to the selector lever position?	Yes	Go to the next step.
1		No	Perform the symptom troubleshooting "NO.27 SHIFT POSITION INDICATOR LIGHT DOES NOT ILLUMINATE IN M POSITION" or "NO.28 SHIFT POSITION INDICATOR LIGHT ILLUMINATES IN P, R, N AND D POSITIONS". (See NO.27 SHIFT POSITION INDICATOR LIGHT DOES NOT ILLUMINATE IN M POSITION .) (See NO.28 SHIFT POSITION INDICATOR LIGHT ILLUMINATES IN P, R, N AND D POSITIONS .)
2	INSPECT ENGINE CONTROL SYSTEM FOR MALFUNCTION Perform the symptom troubleshooting "NO.12 LACK/LOSS OF POWER-ACCELERATION/CRUISE". (See NO.12 LACK/LOSS OF POWER-ACCELERATION/CRUISE .) Is the CIS system normal?	Yes	Go to the next step.
2		No	Repair or replace any malfunctioning parts according to the inspection result.
3	DETERMINE IF MALFUNCTION CAUSE IS INPUT/OUTPUT SIGNAL OR TRANSAXLE (INCLUDING CONTROL VALVE BODY) Disconnect the solenoid connector. Does the vehicle operate as follows? D position: 3GR (fixed) R position: Reverse	Yes	Go to the next step.
3		No	Overhaul the control valve body and repair or replace any malfunctioning parts. (See Automatic Transaxle Workshop Manual FS5A-EL.) If any problem remains, overhaul the transaxle and repair or replace any malfunctioning parts. (See Automatic Transaxle Workshop Manual FS5A-EL.)
4	INSPECT INPUT SIGNAL PARTS FOR MALFUNCTION Drive the vehicle in D position. Does the vehicle start from stop in first gear?	Yes	Go to the next step.
4		No	Inspect the value at the following PCM and TCM PIDs using the M-MDS (IDS). (See ON-BOARD DIAGNOSTIC TEST .) (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION .) PCM PIDs: APP MAF RPM TCM PIDs: THOP OSS TSS TR Repair or replace any malfunctioning parts according to the inspection result. (See PCM INSPECTION .)
5	INSPECT IF OUTPUT SIGNAL MALFUNCTION CAUSED BY MALFUNCTIONING INPUT SIGNAL Inspect the value at the following TCM PIDs using the M-MDS (IDS). (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION .) SSA/SS1 SSB/SS2 SSC/SS3 SSD/SS4 SSF_SS6 LPS Are the PID values normal?	Yes	Go to the next step.
5		No	Inspect the value at the following PCM and TCM PIDs using the M-MDS (IDS). (See ON-BOARD DIAGNOSTIC TEST .) (See ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR INSPECTION .) PCM PIDs: APP MAF RPM TCM PIDs: THOP OSS TSS Repair or replace any malfunctioning parts according to the inspection result. (See PCM INSPECTION .)
6	INSPECT FOR TRANSAXLE INTERNAL MALFUNCTION Perform the stall test. (See MECHANICAL SYSTEM TEST .) Is the stall speed normal?	Yes	Reverify symptoms of malfunction.
6		No	Overhaul the transaxle and repair or replace any malfunctioning parts. (See Automatic Transaxle Workshop Manual FS5A-EL.)
7	Verify the test results. If normal, return to the diagnostic index to service any additional symptoms. If the malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform repair or diagnosis. If the vehicle is repaired, troubleshooting is completed. If the vehicle is not repaired or additional diagnostic information is not available, replace the TCM. (See TCM REMOVAL/INSTALLATION .)