Pinpoint Tests Z: Intermittent: Introduction
WARNING:
TO PREVENT THE RISK OF HIGH-VOLTAGE SHOCK, ALWAYS FOLLOW PRECISELY ALL WARNINGS AND SERVICE INSTRUCTIONS, INCLUDING INSTRUCTIONS TO DEPOWER THE SYSTEM. THE HIGH-VOLTAGE HYBRID SYSTEM UTILIZES APPROXIMATELY 300 VOLTS DC, PROVIDED THROUGH HIGH-VOLTAGE CABLES TO ITS COMPONENTS AND MODULES. THE HIGH-VOLTAGE CABLES AND WIRING ARE IDENTIFIED BY ORANGE HARNESS TAPE OR ORANGE WIRE COVERING. ALL HIGH-VOLTAGE COMPONENTS ARE MARKED WITH HIGH-VOLTAGE WARNING LABELS WITH A HIGH-VOLTAGE SYMBOL. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN SERIOUS PERSONAL INJURY OR DEATH.
This pinpoint test is intended to diagnose and isolate intermittent concerns for the following:
- all electronic engine control (EEC) subsystems
- transaxle assembly (7000)
This chart is used to determine which test to run for the suspect circuit. Corresponding (PIDs) to each circuit are listed. Some circuits do not have an associated PID or the PID may not be available and has to be measured with a digital multimeter (DMM). More specific PIDs can be found in REFERENCE VALUES -- ESCAPE HYBRID article .
PCM/TCM PIDS/SIGNALS
| PCM/TCM* PIDS/SIGNALS | Associated Circuit | Test Type |
|---|---|---|
| ACCR | A/CCR | output |
| Use DMM | A/CLPCS | input |
| ACP | A/CPSW | input |
| APP1 | APP | input |
| APP2 | APPS2 | input |
| APP3 | APPS3 | input |
| BPO, BPO_HZ | BPO | input |
| BPP/BOO | BPP | input |
| Use DMM | BPS | input |
| Use DMM | CD-A (primary) | output |
| Use DMM | CD-B (primary) | output |
| Use DMM | CD-C (primary) | output |
| Use DMM | CD-D (primary) | output |
| CHT, CHT V | CHT | input |
| Use DMM | CKP(+) | input |
| Use DMM | CMP | input |
| Use DMM | CTO | output |
| EGRMC1 | EGRMC1 | output |
| EGRMC2 | EGRMC2 | output |
| EGRMC3 | EGRMC3 | output |
| EGRMC4 | EGRMC4 | output |
| EVAPCV | CANV | output |
| EVMV | VMV | output |
| FP | FP | output |
| FPM | FPM | input |
| FRP | FRP | input |
| FRT | FRT | input |
| FTIV | FTIV | output |
| FTP | FTP | input |
| G_SDN, Use DMM | GSDN | output |
| G_SDN_B*, G_SDN_C* | GSDN | input |
| GTQ_CMD | TGAC | input |
| GTQ_CMD* | TGAC | output |
| HFC | FC3 | output |
| IAT | IAT | input |
| INJ1 | INJ1 | output |
| INJ2 | INJ2 | output |
| INJ3 | INJ3 | output |
| INJ4 | INJ4 | output |
| ISDN1* | ISDN1 | input |
| ISDN2* | ISDN2 | input |
| KEYST | ISP-R | input |
| KEYST | ISP-RS | input |
| KS1 | KS(+) | input |
| LFC | FC1 | output |
| MAF | MAF | input |
| MAP | MAP | input |
| MECP | MECP | output |
| MFC | FC2 | output |
| M_SDN, Use DMM | MSDN | output |
| MTQ_OUT | TMAC | input |
| MTQ_OUT* | TMAC | output |
| O2S11_CUR | HO2S11 | input |
| O2S12 | HO2S12 | input |
| TACM (+) | TACM (+) | output |
| TACM (-) | TACM (-) | output |
| TP1 | TP1 | input |
| TP2 | TP2 | input |
| TR_A1 | TR-A1 | input |
| TR_A2 | TR-A2 | input |
| VPWR | VPWR | input |
| Use DMM | VREF | output |